Update CHANGES for v1.18.1 release

* Change order of modules in the README

.github/ISSUE_TEMPLATE.md

@@ -5,7 +5,7 @@
 ### Environment
 
 * Platform: aws, azure, bare-metal, google-cloud, digital-ocean
-* OS: container-linux, flatcar-linux
+* OS: fedora-coreos, flatcar-linux
 * Release: Typhoon version or Git SHA (reporting latest is **not** helpful)
 * Terraform: `terraform version` (reporting latest is **not** helpful)
 * Plugins: Provider plugin versions (reporting latest is **not** helpful)

CHANGES.md

@@ -4,6 +4,82 @@ Notable changes between versions.
 
 ## Latest
 
+## v1.18.1
+
+* Kubernetes [v1.18.1](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.18.md#v1181)
+* Choose Fedora CoreOS or Flatcar Linux (**action recommended**)
+  * Use a `fedora-coreos` module for Fedora CoreOS
+  * Use a `container-linux` module with OS set to Flatcar Linux
+* Update etcd from v3.4.5 to [v3.4.7](https://github.com/etcd-io/etcd/releases/tag/v3.4.7)
+* Change `kube-proxy` and `calico` or `flannel` to tolerate specific taints ([#682](https://github.com/poseidon/typhoon/pull/682))
+  * Tolerate master and not-ready taints, rather than tolerating all taints
+* Update flannel from v0.11.0 to v0.12.0 ([#690](https://github.com/poseidon/typhoon/pull/690))
+* Fix bootstrap when `networking` mode `flannel` (non-default) is chosen ([#689](https://github.com/poseidon/typhoon/pull/689))
+  * Regressed in v1.18.0 changes for Calico ([#675](https://github.com/poseidon/typhoon/pull/675))
+* Rename Container Linux `controller_clc_snippets` to `controller_snippets` for consistency ([#688](https://github.com/poseidon/typhoon/pull/688))
+* Rename Container Linux `worker_clc_snippets` to `worker_snippets` for consistency
+* Rename Container Linux `clc_snippets` (bare-metal) to `snippets` for consistency
+* Drop support for [gitRepo](https://kubernetes.io/docs/concepts/storage/volumes/#gitrepo) volumes
+
+#### Azure
+
+* Fix Azure worker UDP outbound connections ([#691](https://github.com/poseidon/typhoon/pull/691))
+  * Fix Azure worker clock sync timeouts
+
+#### DigitalOcean
+
+* Add support for Fedora CoreOS ([#699](https://github.com/poseidon/typhoon/pull/699))
+
+#### Addons
+
+* Refresh Prometheus rules/alerts and Grafana dashboards ([#692](https://github.com/poseidon/typhoon/pull/692))
+* Update Grafana from v6.7.1 to v6.7.2
+
+## v1.18.0
+
+* Kubernetes [v1.18.0](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.18.md#v1180)
+* Update etcd from v3.4.4 to [v3.4.5](https://github.com/etcd-io/etcd/releases/tag/v3.4.5)
+* Switch from upstream hyperkube image to individual images ([#669](https://github.com/poseidon/typhoon/pull/669))
+  * Use upstream k8s.gcr.io `kube-apiserver`, `kube-controller-manager`, `kube-scheduler`, and `kube-proxy` container images
+  * Use [poseidon/kubelet](https://github.com/poseidon/kubelet) to package the upstream Kubelet binary and dependencies as a container image (checksummed, automated build)
+  * Add [quay.io/poseidon/kubelet](https://quay.io/repository/poseidon/kubelet) as a Typhoon distributed artifact in the security policy
+  * Update base images from debian 9 to debian 10
+  * Background: Kubernetes will [stop releasing](https://github.com/kubernetes/kubernetes/pull/88676) the hyperkube container image and provide the Kubelet as a binary for packaging
+* Choose Fedora CoreOS or Flatcar Linux (**action recommended**)
+  * Use a `fedora-coreos` module for Fedora CoreOS
+  * Use a `container-linux` module with OS set for Flatcar Linux (varies, see docs)
+  * CoreOS Container Linux [won't receive updates](https://coreos.com/os/eol/) after May 2020
+* Add support for Fedora CoreOS snippets (`terraform-provider-ct` v0.5+) ([#686](https://github.com/poseidon/typhoon/pull/686))
+* Recommend updating `terraform-provider-ct` plugin from v0.4.0 to [v0.5.0](https://github.com/poseidon/terraform-provider-ct/releases/tag/v0.5.0)
+* Set Fedora CoreOS log driver back to the default `journald` ([#681](https://github.com/poseidon/typhoon/pull/681))
+* Deprecate `asset_dir` variable and remove docs ([#678](https://github.com/poseidon/typhoon/pull/678))
+* Deprecate support for [gitRepo](https://kubernetes.io/docs/concepts/storage/volumes/#gitrepo) volumes. A future release will drop support.
+
+#### AWS
+
+* Fix Fedora CoreOS AMI to filter for stable images ([#685](https://github.com/poseidon/typhoon/pull/685))
+  * Latest Fedora CoreOS `testing` or `bodhi-update` images could be chosen depending on the region
+
+#### Bare-Metal
+
+* Update Fedora CoreOS default `os_stream` from testing to stable
+
+#### Google Cloud
+
+* Known: Use of stale Fedora CoreOS image may require terraform re-apply during bootstrap ([#687](https://github.com/poseidon/typhoon/pull/687))
+
+#### DigitalOcean
+
+* Rename `image` variable to `os_image` for consistency ([#677](https://github.com/poseidon/typhoon/pull/677)) (action required)
+
+#### Addons
+
+* Update Prometheus from v2.16.0 to [v2.17.1](https://github.com/prometheus/prometheus/releases/tag/v2.17.1)
+* Update Grafana from v6.6.2 to [v6.7.1](https://github.com/grafana/grafana/releases/tag/v6.7.1)
+
+## v1.17.4
+
+* Kubernetes [v1.17.4](https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.17.md#v1174)
 * Update etcd from v3.4.3 to [v3.4.4](https://github.com/etcd-io/etcd/releases/tag/v3.4.4)
   * On Container Linux, fetch using the docker transport format ([#659](https://github.com/poseidon/typhoon/pull/659))
 * Update CoreDNS from v1.6.6 to v1.6.7 ([#648](https://github.com/poseidon/typhoon/pull/648))

README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [preemptible](https://typhoon.psdn.io/cl/google-cloud/#preemption) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization
@@ -21,20 +21,13 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 Typhoon provides a Terraform Module for each supported operating system and platform.
 
-| Platform      | Operating System | Terraform Module | Status |
-|---------------|------------------|------------------|--------|
-| AWS           | Container Linux  | [aws/container-linux/kubernetes](aws/container-linux/kubernetes) | stable |
-| Azure         | Container Linux  | [azure/container-linux/kubernetes](azure/container-linux/kubernetes) | alpha |
-| Bare-Metal    | Container Linux  | [bare-metal/container-linux/kubernetes](bare-metal/container-linux/kubernetes) | stable |
-| Digital Ocean | Container Linux  | [digital-ocean/container-linux/kubernetes](digital-ocean/container-linux/kubernetes) | beta |
-| Google Cloud  | Container Linux  | [google-cloud/container-linux/kubernetes](google-cloud/container-linux/kubernetes) | stable |
-
 Typhoon is available for [Fedora CoreOS](https://getfedora.org/coreos/).
 
 | Platform      | Operating System | Terraform Module | Status |
 |---------------|------------------|------------------|--------|
 | AWS           | Fedora CoreOS | [aws/fedora-coreos/kubernetes](aws/fedora-coreos/kubernetes) | stable |
 | Bare-Metal    | Fedora CoreOS | [bare-metal/fedora-coreos/kubernetes](bare-metal/fedora-coreos/kubernetes) | beta |
+| DigitalOcean  | Fedora CoreOS | [digital-ocean/fedora-coreos/kubernetes](digital-ocean/fedora-coreos/kubernetes) | alpha |
 | Google Cloud  | Fedora CoreOS | [google-cloud/fedora-coreos/kubernetes](google-cloud/fedora-coreos/kubernetes) | beta |
 
 Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org/releases/).
@@ -44,14 +37,25 @@ Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org
 | AWS           | Flatcar Linux    | [aws/container-linux/kubernetes](aws/container-linux/kubernetes) | stable |
 | Azure         | Flatcar Linux    | [azure/container-linux/kubernetes](azure/container-linux/kubernetes) | alpha |
 | Bare-Metal    | Flatcar Linux    | [bare-metal/container-linux/kubernetes](bare-metal/container-linux/kubernetes) | stable |
+| DigitalOcean | Flatcar Linux  | [digital-ocean/container-linux/kubernetes](digital-ocean/container-linux/kubernetes) | alpha |
 | Google Cloud  | Flatcar Linux  | [google-cloud/container-linux/kubernetes](google-cloud/container-linux/kubernetes) | alpha |
-| Digital Ocean | Flatcar Linux  | [digital-ocean/container-linux/kubernetes](digital-ocean/container-linux/kubernetes) | alpha |
+
+Typhoon is available for CoreOS Container Linux ([no updates](https://coreos.com/os/eol/) after May 2020).
+
+| Platform      | Operating System | Terraform Module | Status |
+|---------------|------------------|------------------|--------|
+| AWS           | Container Linux  | [aws/container-linux/kubernetes](aws/container-linux/kubernetes) | stable |
+| Azure         | Container Linux  | [azure/container-linux/kubernetes](azure/container-linux/kubernetes) | alpha |
+| Bare-Metal    | Container Linux  | [bare-metal/container-linux/kubernetes](bare-metal/container-linux/kubernetes) | stable |
+| Digital Ocean | Container Linux  | [digital-ocean/container-linux/kubernetes](digital-ocean/container-linux/kubernetes) | beta |
+| Google Cloud  | Container Linux  | [google-cloud/container-linux/kubernetes](google-cloud/container-linux/kubernetes) | stable |
 
 ## Documentation
 
 * [Docs](https://typhoon.psdn.io)
 * Architecture [concepts](https://typhoon.psdn.io/architecture/concepts/) and [operating systems](https://typhoon.psdn.io/architecture/operating-systems/)
-* Tutorials for [AWS](docs/cl/aws.md), [Azure](docs/cl/azure.md), [Bare-Metal](docs/cl/bare-metal.md), [Digital Ocean](docs/cl/digital-ocean.md), and [Google-Cloud](docs/cl/google-cloud.md)
+* Fedora CoreOS tutorials for [AWS](docs/fedora-coreos/aws.md), [Bare-Metal](docs/fedora-coreos/bare-metal.md), [DigitalOcean](docs/fedora-coreos/digitalocean.md), and [Google Cloud](docs/fedora-coreos/google-cloud.md)
+* Flatcar Linux tutorials for [AWS](docs/cl/aws.md), [Azure](docs/cl/azure.md), [Bare-Metal](docs/cl/bare-metal.md), [DigitalOcean](docs/cl/digital-ocean.md), and [Google Cloud](docs/cl/google-cloud.md)
 
 ## Usage
 
@@ -59,7 +63,7 @@ Define a Kubernetes cluster by using the Terraform module for your chosen platfo
 
 ```tf
 module "yavin" {
-  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.18.1"
 
   # Google Cloud
   cluster_name  = "yavin"
@@ -98,9 +102,9 @@ In 4-8 minutes (varies by platform), the cluster will be ready. This Google Clou
 $ export KUBECONFIG=/home/user/.kube/configs/yavin-config
 $ kubectl get nodes
 NAME                                       ROLES    STATUS  AGE  VERSION
-yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.17.4
-yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.17.4
-yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.17.4
+yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.18.1
+yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.18.1
+yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.18.1
 ```
 
 List the pods.

addons/grafana/dashboards-k8s-resources-1.yaml

@@ -59,7 +59,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "1 - avg(rate(node_cpu_seconds_total{mode=\"idle\", cluster=\"$cluster\"}[1m]))",
+                  "expr": "1 - avg(rate(node_cpu_seconds_total{mode=\"idle\", cluster=\"$cluster\"}[$__interval]))",
                   "format": "time_series",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1561,7 +1561,7 @@ data:
               ],
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1570,7 +1570,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1579,7 +1579,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1588,7 +1588,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1597,7 +1597,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1606,7 +1606,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -1706,7 +1706,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -1804,7 +1804,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -1902,7 +1902,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2000,7 +2000,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2098,7 +2098,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2196,7 +2196,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2294,7 +2294,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2392,7 +2392,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$interval])) by (namespace)",
+                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\".+\"}[$__interval])) by (namespace)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{namespace}}",
@@ -2499,41 +2499,6 @@ data:
             "type": "query",
             "useTags": false
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "current": {
@@ -4033,7 +3998,7 @@ data:
               ],
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4042,7 +4007,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4051,7 +4016,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4060,7 +4025,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4069,7 +4034,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4078,7 +4043,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4178,7 +4143,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4276,7 +4241,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4374,7 +4339,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4472,7 +4437,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4570,7 +4535,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4668,7 +4633,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -4748,41 +4713,6 @@ data:
             "regex": "",
             "type": "datasource"
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "current": {
@@ -5724,41 +5654,6 @@ data:
             "regex": "",
             "type": "datasource"
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "current": {

addons/grafana/dashboards-k8s-resources-2.yaml

@@ -1042,7 +1042,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_bytes_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_bytes_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1140,7 +1140,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_bytes_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_bytes_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1238,7 +1238,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1336,7 +1336,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_packets_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1434,7 +1434,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_receive_packets_dropped_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_receive_packets_dropped_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1532,7 +1532,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$interval])) by (pod)",
+                  "expr": "sum(irate(container_network_transmit_packets_dropped_total{namespace=~\"$namespace\", pod=~\"$pod\"}[$__interval])) by (pod)",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -1612,41 +1612,6 @@ data:
             "regex": "",
             "type": "datasource"
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "current": {
@@ -2701,7 +2666,7 @@ data:
               ],
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2710,7 +2675,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2719,7 +2684,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2728,7 +2693,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2737,7 +2702,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2746,7 +2711,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -2846,7 +2811,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -2944,7 +2909,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3042,7 +3007,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3140,7 +3105,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3238,7 +3203,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3336,7 +3301,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3434,7 +3399,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3532,7 +3497,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod) \ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\"$workload\", workload_type=\"$type\"}) by (pod))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{pod}}",
@@ -3612,41 +3577,6 @@ data:
             "regex": "",
             "type": "datasource"
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "current": {
@@ -3708,7 +3638,7 @@ data:
               "value": ""
             },
             "datasource": "$datasource",
-            "hide": 2,
+            "hide": 0,
             "includeAll": false,
             "label": null,
             "multi": false,
@@ -4906,7 +4836,7 @@ data:
               ],
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4915,7 +4845,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4924,7 +4854,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4933,7 +4863,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4942,7 +4872,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -4951,7 +4881,7 @@ data:
                   "step": 10
                 },
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "table",
                   "instant": true,
                   "intervalFactor": 2,
@@ -5051,7 +4981,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5149,7 +5079,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5247,7 +5177,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(avg(irate(container_network_receive_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5345,7 +5275,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(avg(irate(container_network_transmit_bytes_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5443,7 +5373,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5541,7 +5471,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5639,7 +5569,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_receive_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod)\ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5737,7 +5667,7 @@ data:
               "steppedLine": false,
               "targets": [
                 {
-                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$interval])\n* on (namespace,pod) \ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
+                  "expr": "(sum(irate(container_network_transmit_packets_dropped_total{cluster=\"$cluster\", namespace=~\"$namespace\"}[$__interval])\n* on (namespace,pod) \ngroup_left(workload,workload_type) mixin_pod_workload{cluster=\"$cluster\", namespace=~\"$namespace\", workload=~\".+\", workload_type=\"$type\"}) by (workload))\n",
                   "format": "time_series",
                   "intervalFactor": 2,
                   "legendFormat": "{{workload}}",
@@ -5817,41 +5747,6 @@ data:
             "regex": "",
             "type": "datasource"
           },
-          {
-            "allValue": null,
-            "auto": false,
-            "auto_count": 30,
-            "auto_min": "10s",
-            "current": {
-              "text": "5m",
-              "value": "5m"
-            },
-            "datasource": "$datasource",
-            "hide": 2,
-            "includeAll": false,
-            "label": null,
-            "multi": false,
-            "name": "interval",
-            "options": [
-              {
-                "selected": true,
-                "text": "4h",
-                "value": "4h"
-              }
-            ],
-            "query": "4h",
-            "refresh": 2,
-            "regex": "",
-            "skipUrlSync": false,
-            "sort": 1,
-            "tagValuesQuery": "",
-            "tags": [
-
-            ],
-            "tagsQuery": "",
-            "type": "interval",
-            "useTags": false
-          },
           {
             "allValue": null,
             "auto": false,

addons/grafana/deployment.yaml

@@ -23,7 +23,7 @@ spec:
     spec:
       containers:
         - name: grafana
-          image: docker.io/grafana/grafana:6.6.2
+          image: docker.io/grafana/grafana:6.7.2
           env:
             - name: GF_PATHS_CONFIG
               value: "/etc/grafana/custom.ini"

addons/prometheus/deployment.yaml

@@ -20,7 +20,7 @@ spec:
       serviceAccountName: prometheus
       containers:
         - name: prometheus
-          image: quay.io/prometheus/prometheus:v2.16.0
+          image: quay.io/prometheus/prometheus:v2.17.1
           args:
             - --web.listen-address=0.0.0.0:9090
             - --config.file=/etc/prometheus/prometheus.yaml

addons/prometheus/rules.yaml

@@ -252,25 +252,25 @@ data:
           "name": "kube-apiserver.rules",
           "rules": [
             {
-              "expr": "sum(rate(apiserver_request_duration_seconds_sum{subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|PROXY|CONNECT\"}[5m])) without(instance, pod)\n/\nsum(rate(apiserver_request_duration_seconds_count{subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|PROXY|CONNECT\"}[5m])) without(instance, pod)\n",
+              "expr": "sum(rate(apiserver_request_duration_seconds_sum{subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|DELETECOLLECTION|PROXY|CONNECT\"}[5m])) without(instance, pod)\n/\nsum(rate(apiserver_request_duration_seconds_count{subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|DELETECOLLECTION|PROXY|CONNECT\"}[5m])) without(instance, pod)\n",
               "record": "cluster:apiserver_request_duration_seconds:mean5m"
             },
             {
-              "expr": "histogram_quantile(0.99, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
+              "expr": "histogram_quantile(0.99, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|DELETECOLLECTION|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
               "labels": {
                 "quantile": "0.99"
               },
               "record": "cluster_quantile:apiserver_request_duration_seconds:histogram_quantile"
             },
             {
-              "expr": "histogram_quantile(0.9, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
+              "expr": "histogram_quantile(0.9, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|DELETECOLLECTION|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
               "labels": {
                 "quantile": "0.9"
               },
               "record": "cluster_quantile:apiserver_request_duration_seconds:histogram_quantile"
             },
             {
-              "expr": "histogram_quantile(0.5, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
+              "expr": "histogram_quantile(0.5, sum(rate(apiserver_request_duration_seconds_bucket{job=\"apiserver\",subresource!=\"log\",verb!~\"LIST|WATCH|WATCHLIST|DELETECOLLECTION|PROXY|CONNECT\"}[5m])) without(instance, pod))\n",
               "labels": {
                 "quantile": "0.5"
               },
@@ -805,6 +805,7 @@ data:
             {
               "alert": "ErrorBudgetBurn",
               "annotations": {
+                "message": "High requests error budget burn for job=apiserver (current value: {{ $value }})",
                 "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-errorbudgetburn"
               },
               "expr": "(\n  status_class_5xx:apiserver_request_total:ratio_rate1h{job=\"apiserver\"} > (14.4*0.010000)\n  and\n  status_class_5xx:apiserver_request_total:ratio_rate5m{job=\"apiserver\"} > (14.4*0.010000)\n)\nor\n(\n  status_class_5xx:apiserver_request_total:ratio_rate6h{job=\"apiserver\"} > (6*0.010000)\n  and\n  status_class_5xx:apiserver_request_total:ratio_rate30m{job=\"apiserver\"} > (6*0.010000)\n)\n",
@@ -816,6 +817,7 @@ data:
             {
               "alert": "ErrorBudgetBurn",
               "annotations": {
+                "message": "High requests error budget burn for job=apiserver (current value: {{ $value }})",
                 "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-errorbudgetburn"
               },
               "expr": "(\n  status_class_5xx:apiserver_request_total:ratio_rate1d{job=\"apiserver\"} > (3*0.010000)\n  and\n  status_class_5xx:apiserver_request_total:ratio_rate2h{job=\"apiserver\"} > (3*0.010000)\n)\nor\n(\n  status_class_5xx:apiserver_request_total:ratio_rate3d{job=\"apiserver\"} > (0.010000)\n  and\n  status_class_5xx:apiserver_request_total:ratio_rate6h{job=\"apiserver\"} > (0.010000)\n)\n",
@@ -853,30 +855,6 @@ data:
                 "severity": "critical"
               }
             },
-            {
-              "alert": "KubeAPIErrorsHigh",
-              "annotations": {
-                "message": "API server is returning errors for {{ $value | humanizePercentage }} of requests.",
-                "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-kubeapierrorshigh"
-              },
-              "expr": "sum(rate(apiserver_request_total{job=\"apiserver\",code=~\"5..\"}[5m]))\n  /\nsum(rate(apiserver_request_total{job=\"apiserver\"}[5m])) > 0.03\n",
-              "for": "10m",
-              "labels": {
-                "severity": "critical"
-              }
-            },
-            {
-              "alert": "KubeAPIErrorsHigh",
-              "annotations": {
-                "message": "API server is returning errors for {{ $value | humanizePercentage }} of requests.",
-                "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-kubeapierrorshigh"
-              },
-              "expr": "sum(rate(apiserver_request_total{job=\"apiserver\",code=~\"5..\"}[5m]))\n  /\nsum(rate(apiserver_request_total{job=\"apiserver\"}[5m])) > 0.01\n",
-              "for": "10m",
-              "labels": {
-                "severity": "warning"
-              }
-            },
             {
               "alert": "KubeAPIErrorsHigh",
               "annotations": {
@@ -993,7 +971,7 @@ data:
                 "message": "Kubelet '{{ $labels.node }}' is running at {{ $value | humanizePercentage }} of its Pod capacity.",
                 "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-kubelettoomanypods"
               },
-              "expr": "max(max(kubelet_running_pod_count{job=\"kubelet\"}) by(instance) * on(instance) group_left(node) kubelet_node_name{job=\"kubelet\"}) by(node) / max(kube_node_status_capacity_pods{job=\"kube-state-metrics\"}) by(node) > 0.95\n",
+              "expr": "max(max(kubelet_running_pod_count{job=\"kubelet\"}) by(instance) * on(instance) group_left(node) kubelet_node_name{job=\"kubelet\"}) by(node) / max(kube_node_status_capacity_pods{job=\"kube-state-metrics\"} != 1) by(node) > 0.95\n",
               "for": "15m",
               "labels": {
                 "severity": "warning"
@@ -1029,7 +1007,7 @@ data:
                 "message": "Kubelet Pod startup 99th percentile latency is {{ $value }} seconds on node {{ $labels.node }}.",
                 "runbook_url": "https://github.com/kubernetes-monitoring/kubernetes-mixin/tree/master/runbook.md#alert-name-kubeletpodstartuplatencyhigh"
               },
-              "expr": "histogram_quantile(0.99, sum(rate(kubelet_pod_worker_duration_seconds_bucket{job=\"kubelet\"}[5m])) by (instance, le)) * on(instance) group_left(node) kubelet_node_name  > 5\n",
+              "expr": "histogram_quantile(0.99, sum(rate(kubelet_pod_worker_duration_seconds_bucket{job=\"kubelet\"}[5m])) by (instance, le)) * on(instance) group_left(node) kubelet_node_name  > 60\n",
               "for": "15m",
               "labels": {
                 "severity": "warning"
@@ -1085,9 +1063,167 @@ data:
         }
       ]
     }
+  loki.yaml: |-
+    {
+      "groups": [
+        {
+          "name": "loki_rules",
+          "rules": [
+            {
+              "expr": "histogram_quantile(0.99, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job))",
+              "record": "job:loki_request_duration_seconds:99quantile"
+            },
+            {
+              "expr": "histogram_quantile(0.50, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job))",
+              "record": "job:loki_request_duration_seconds:50quantile"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (job) / sum(rate(loki_request_duration_seconds_count[1m])) by (job)",
+              "record": "job:loki_request_duration_seconds:avg"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job)",
+              "record": "job:loki_request_duration_seconds_bucket:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (job)",
+              "record": "job:loki_request_duration_seconds_sum:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_count[1m])) by (job)",
+              "record": "job:loki_request_duration_seconds_count:sum_rate"
+            },
+            {
+              "expr": "histogram_quantile(0.99, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job, route))",
+              "record": "job_route:loki_request_duration_seconds:99quantile"
+            },
+            {
+              "expr": "histogram_quantile(0.50, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job, route))",
+              "record": "job_route:loki_request_duration_seconds:50quantile"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (job, route) / sum(rate(loki_request_duration_seconds_count[1m])) by (job, route)",
+              "record": "job_route:loki_request_duration_seconds:avg"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, job, route)",
+              "record": "job_route:loki_request_duration_seconds_bucket:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (job, route)",
+              "record": "job_route:loki_request_duration_seconds_sum:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_count[1m])) by (job, route)",
+              "record": "job_route:loki_request_duration_seconds_count:sum_rate"
+            },
+            {
+              "expr": "histogram_quantile(0.99, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, namespace, job, route))",
+              "record": "namespace_job_route:loki_request_duration_seconds:99quantile"
+            },
+            {
+              "expr": "histogram_quantile(0.50, sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, namespace, job, route))",
+              "record": "namespace_job_route:loki_request_duration_seconds:50quantile"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (namespace, job, route) / sum(rate(loki_request_duration_seconds_count[1m])) by (namespace, job, route)",
+              "record": "namespace_job_route:loki_request_duration_seconds:avg"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_bucket[1m])) by (le, namespace, job, route)",
+              "record": "namespace_job_route:loki_request_duration_seconds_bucket:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_sum[1m])) by (namespace, job, route)",
+              "record": "namespace_job_route:loki_request_duration_seconds_sum:sum_rate"
+            },
+            {
+              "expr": "sum(rate(loki_request_duration_seconds_count[1m])) by (namespace, job, route)",
+              "record": "namespace_job_route:loki_request_duration_seconds_count:sum_rate"
+            }
+          ]
+        },
+        {
+          "name": "loki_alerts",
+          "rules": [
+            {
+              "alert": "LokiRequestErrors",
+              "annotations": {
+                "message": "{{ $labels.job }} {{ $labels.route }} is experiencing {{ printf \"%.2f\" $value }}% errors.\n"
+              },
+              "expr": "100 * sum(rate(loki_request_duration_seconds_count{status_code=~\"5..\"}[1m])) by (namespace, job, route)\n  /\nsum(rate(loki_request_duration_seconds_count[1m])) by (namespace, job, route)\n  > 10\n",
+              "for": "15m",
+              "labels": {
+                "severity": "critical"
+              }
+            },
+            {
+              "alert": "LokiRequestLatency",
+              "annotations": {
+                "message": "{{ $labels.job }} {{ $labels.route }} is experiencing {{ printf \"%.2f\" $value }}s 99th percentile latency.\n"
+              },
+              "expr": "namespace_job_route:loki_request_duration_seconds:99quantile{route!~\"(?i).*tail.*\"} > 1\n",
+              "for": "15m",
+              "labels": {
+                "severity": "critical"
+              }
+            }
+          ]
+        }
+      ]
+    }
   node-exporter.yaml: |-
     {
       "groups": [
+        {
+          "name": "node-exporter.rules",
+          "rules": [
+            {
+              "expr": "count without (cpu) (\n  count without (mode) (\n    node_cpu_seconds_total{job=\"node-exporter\"}\n  )\n)\n",
+              "record": "instance:node_num_cpu:sum"
+            },
+            {
+              "expr": "1 - avg without (cpu, mode) (\n  rate(node_cpu_seconds_total{job=\"node-exporter\", mode=\"idle\"}[1m])\n)\n",
+              "record": "instance:node_cpu_utilisation:rate1m"
+            },
+            {
+              "expr": "(\n  node_load1{job=\"node-exporter\"}\n/\n  instance:node_num_cpu:sum{job=\"node-exporter\"}\n)\n",
+              "record": "instance:node_load1_per_cpu:ratio"
+            },
+            {
+              "expr": "1 - (\n  node_memory_MemAvailable_bytes{job=\"node-exporter\"}\n/\n  node_memory_MemTotal_bytes{job=\"node-exporter\"}\n)\n",
+              "record": "instance:node_memory_utilisation:ratio"
+            },
+            {
+              "expr": "rate(node_vmstat_pgmajfault{job=\"node-exporter\"}[1m])\n",
+              "record": "instance:node_vmstat_pgmajfault:rate1m"
+            },
+            {
+              "expr": "rate(node_disk_io_time_seconds_total{job=\"node-exporter\", device!~\"dm.*\"}[1m])\n",
+              "record": "instance_device:node_disk_io_time_seconds:rate1m"
+            },
+            {
+              "expr": "rate(node_disk_io_time_weighted_seconds_total{job=\"node-exporter\", device!~\"dm.*\"}[1m])\n",
+              "record": "instance_device:node_disk_io_time_weighted_seconds:rate1m"
+            },
+            {
+              "expr": "sum without (device) (\n  rate(node_network_receive_bytes_total{job=\"node-exporter\", device!=\"lo\"}[1m])\n)\n",
+              "record": "instance:node_network_receive_bytes_excluding_lo:rate1m"
+            },
+            {
+              "expr": "sum without (device) (\n  rate(node_network_transmit_bytes_total{job=\"node-exporter\", device!=\"lo\"}[1m])\n)\n",
+              "record": "instance:node_network_transmit_bytes_excluding_lo:rate1m"
+            },
+            {
+              "expr": "sum without (device) (\n  rate(node_network_receive_drop_total{job=\"node-exporter\", device!=\"lo\"}[1m])\n)\n",
+              "record": "instance:node_network_receive_drop_excluding_lo:rate1m"
+            },
+            {
+              "expr": "sum without (device) (\n  rate(node_network_transmit_drop_total{job=\"node-exporter\", device!=\"lo\"}[1m])\n)\n",
+              "record": "instance:node_network_transmit_drop_excluding_lo:rate1m"
+            }
+          ]
+        },
         {
           "name": "node-exporter",
           "rules": [
@@ -1210,6 +1346,41 @@ data:
               "labels": {
                 "severity": "warning"
               }
+            },
+            {
+              "alert": "NodeHighNumberConntrackEntriesUsed",
+              "annotations": {
+                "description": "{{ $value | humanizePercentage }} of conntrack entries are used",
+                "summary": "Number of conntrack are getting close to the limit"
+              },
+              "expr": "(node_nf_conntrack_entries / node_nf_conntrack_entries_limit) > 0.75\n",
+              "labels": {
+                "severity": "warning"
+              }
+            },
+            {
+              "alert": "NodeClockSkewDetected",
+              "annotations": {
+                "message": "Clock on {{ $labels.instance }} is out of sync by more than 300s. Ensure NTP is configured correctly on this host.",
+                "summary": "Clock skew detected."
+              },
+              "expr": "(\n  node_timex_offset_seconds > 0.05\nand\n  deriv(node_timex_offset_seconds[5m]) >= 0\n)\nor\n(\n  node_timex_offset_seconds < -0.05\nand\n  deriv(node_timex_offset_seconds[5m]) <= 0\n)\n",
+              "for": "10m",
+              "labels": {
+                "severity": "warning"
+              }
+            },
+            {
+              "alert": "NodeClockNotSynchronising",
+              "annotations": {
+                "message": "Clock on {{ $labels.instance }} is not synchronising. Ensure NTP is configured on this host.",
+                "summary": "Clock not synchronising."
+              },
+              "expr": "min_over_time(node_timex_sync_status[5m]) == 0\n",
+              "for": "10m",
+              "labels": {
+                "severity": "warning"
+              }
             }
           ]
         }

aws/container-linux/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [spot](https://typhoon.psdn.io/cl/aws/#spot) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

aws/container-linux/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]

aws/container-linux/kubernetes/cl/controller.yaml

@@ -7,7 +7,7 @@ systemd:
         - name: 40-etcd-cluster.conf
           contents: |
             [Service]
-            Environment="ETCD_IMAGE_TAG=v3.4.4"
+            Environment="ETCD_IMAGE_TAG=v3.4.7"
             Environment="ETCD_IMAGE_URL=docker://quay.io/coreos/etcd"
             Environment="RKT_RUN_ARGS=--insecure-options=image"
             Environment="ETCD_NAME=${etcd_name}"
@@ -91,8 +91,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -126,7 +125,6 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/rkt run \
             --trust-keys-from-https \
             --volume config,kind=host,source=/etc/kubernetes/bootstrap-secrets \
@@ -136,7 +134,7 @@ systemd:
             --volume script,kind=host,source=/opt/bootstrap/apply \
             --mount volume=script,target=/apply \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
             --exec=/apply
@@ -171,8 +169,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       filesystem: root
       mode: 0544
@@ -184,6 +184,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5

aws/container-linux/kubernetes/controllers.tf

@@ -52,7 +52,7 @@ data "ct_config" "controller-ignitions" {
   count        = var.controller_count
   content      = data.template_file.controller-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = var.controller_clc_snippets
+  snippets     = var.controller_snippets
 }
 
 # Controller Container Linux configs

aws/container-linux/kubernetes/network.tf

@@ -31,15 +31,15 @@ resource "aws_route_table" "default" {
 }
 
 resource "aws_route" "egress-ipv4" {
-  route_table_id = aws_route_table.default.id
+  route_table_id         = aws_route_table.default.id
   destination_cidr_block = "0.0.0.0/0"
-  gateway_id = aws_internet_gateway.gateway.id
+  gateway_id             = aws_internet_gateway.gateway.id
 }
 
 resource "aws_route" "egress-ipv6" {
-  route_table_id = aws_route_table.default.id
+  route_table_id              = aws_route_table.default.id
   destination_ipv6_cidr_block = "::/0"
-  gateway_id = aws_internet_gateway.gateway.id
+  gateway_id                  = aws_internet_gateway.gateway.id
 }
 
 # Subnets (one per availability zone)

aws/container-linux/kubernetes/variables.tf

@@ -77,13 +77,13 @@ variable "worker_target_groups" {
   default     = []
 }
 
-variable "controller_clc_snippets" {
+variable "controller_snippets" {
   type        = list(string)
   description = "Controller Container Linux Config snippets"
   default     = []
 }
 
-variable "worker_clc_snippets" {
+variable "worker_snippets" {
   type        = list(string)
   description = "Worker Container Linux Config snippets"
   default     = []

aws/container-linux/kubernetes/workers.tf

@@ -18,7 +18,7 @@ module "workers" {
   ssh_authorized_key    = var.ssh_authorized_key
   service_cidr          = var.service_cidr
   cluster_domain_suffix = var.cluster_domain_suffix
-  clc_snippets          = var.worker_clc_snippets
+  snippets              = var.worker_snippets
   node_labels           = var.worker_node_labels
 }
 

aws/container-linux/kubernetes/workers/cl/worker.yaml

@@ -64,8 +64,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -80,9 +79,9 @@ systemd:
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \
           --node-labels=node.kubernetes.io/node \
-          %{ for label in split(",", node_labels) }
+          %{~ for label in split(",", node_labels) ~}
           --node-labels=${label} \
-          %{ endfor ~}
+          %{~ endfor ~}
           --pod-manifest-path=/etc/kubernetes/manifests \
           --read-only-port=0 \
           --volume-plugin-dir=/var/lib/kubelet/volumeplugins
@@ -128,11 +127,10 @@ storage:
             --volume config,kind=host,source=/etc/kubernetes \
             --mount volume=config,target=/etc/kubernetes \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
-            -- \
-            kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
+            --exec=/usr/local/bin/kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
 passwd:
   users:
     - name: core

aws/container-linux/kubernetes/workers/variables.tf

@@ -70,7 +70,7 @@ variable "target_groups" {
   default     = []
 }
 
-variable "clc_snippets" {
+variable "snippets" {
   type        = list(string)
   description = "Container Linux Config snippets"
   default     = []

aws/container-linux/kubernetes/workers/workers.tf

@@ -73,7 +73,7 @@ resource "aws_launch_configuration" "worker" {
 data "ct_config" "worker-ignition" {
   content      = data.template_file.worker-config.rendered
   pretty_print = false
-  snippets     = var.clc_snippets
+  snippets     = var.snippets
 }
 
 # Worker Container Linux config

aws/fedora-coreos/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [spot](https://typhoon.psdn.io/cl/aws/#spot) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

aws/fedora-coreos/kubernetes/ami.tf

@@ -18,6 +18,11 @@ data "aws_ami" "fedora-coreos" {
     values = ["fedora-coreos-31.*.*.*-hvm"]
   }
 
+  filter {
+    name   = "description"
+    values = ["Fedora CoreOS stable*"]
+  }
+
   # try to filter out dev images (AWS filters can't)
   name_regex = "^fedora-coreos-31.[0-9]*.[0-9]*.[0-9]*-hvm*"
 }

aws/fedora-coreos/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]

aws/fedora-coreos/kubernetes/fcc/controller.yaml

@@ -28,7 +28,7 @@ systemd:
           --network host \
           --volume /var/lib/etcd:/var/lib/etcd:rw,Z \
           --volume /etc/ssl/etcd:/etc/ssl/certs:ro,Z \
-          quay.io/coreos/etcd:v3.4.4
+          quay.io/coreos/etcd:v3.4.7
         ExecStop=/usr/bin/podman stop etcd
         [Install]
         WantedBy=multi-user.target
@@ -79,7 +79,7 @@ systemd:
           --volume /var/log:/var/log \
           --volume /var/run/lock:/var/run/lock:z \
           --volume /opt/cni/bin:/opt/cni/bin:z \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -116,14 +116,13 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/podman run --name bootstrap \
             --network host \
             --volume /etc/kubernetes/bootstrap-secrets:/etc/kubernetes/secrets:ro,Z \
             --volume /opt/bootstrap/assets:/assets:ro,Z \
             --volume /opt/bootstrap/apply:/apply:ro,Z \
             --entrypoint=/apply \
-            k8s.gcr.io/hyperkube:v1.17.4
+            quay.io/poseidon/kubelet:v1.18.1
         ExecStartPost=/bin/touch /opt/bootstrap/bootstrap.done
         ExecStartPost=-/usr/bin/podman stop bootstrap
 storage:
@@ -155,8 +154,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       mode: 0544
       contents:
@@ -167,6 +168,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5
@@ -182,19 +187,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
     - path: /etc/etcd/etcd.env
       mode: 0644
       contents:

aws/fedora-coreos/kubernetes/network.tf

@@ -31,15 +31,15 @@ resource "aws_route_table" "default" {
 }
 
 resource "aws_route" "egress-ipv4" {
-  route_table_id = aws_route_table.default.id
+  route_table_id         = aws_route_table.default.id
   destination_cidr_block = "0.0.0.0/0"
-  gateway_id = aws_internet_gateway.gateway.id
+  gateway_id             = aws_internet_gateway.gateway.id
 }
 
 resource "aws_route" "egress-ipv6" {
-  route_table_id = aws_route_table.default.id
+  route_table_id              = aws_route_table.default.id
   destination_ipv6_cidr_block = "::/0"
-  gateway_id = aws_internet_gateway.gateway.id
+  gateway_id                  = aws_internet_gateway.gateway.id
 }
 
 # Subnets (one per availability zone)

aws/fedora-coreos/kubernetes/workers/ami.tf

@@ -18,6 +18,11 @@ data "aws_ami" "fedora-coreos" {
     values = ["fedora-coreos-31.*.*.*-hvm"]
   }
 
+  filter {
+    name   = "description"
+    values = ["Fedora CoreOS stable*"]
+  }
+
   # try to filter out dev images (AWS filters can't)
   name_regex = "^fedora-coreos-31.[0-9]*.[0-9]*.[0-9]*-hvm*"
 }

aws/fedora-coreos/kubernetes/workers/fcc/worker.yaml

@@ -49,7 +49,7 @@ systemd:
           --volume /var/log:/var/log \
           --volume /var/run/lock:/var/run/lock:z \
           --volume /opt/cni/bin:/opt/cni/bin:z \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -87,7 +87,7 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         ExecStart=/bin/true
-        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z k8s.gcr.io/hyperkube:v1.17.4 kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
+        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z --entrypoint /usr/local/bin/kubectl quay.io/poseidon/kubelet:v1.18.1 --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
         [Install]
         WantedBy=multi-user.target
 storage:
@@ -110,19 +110,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
 passwd:
   users:
     - name: core

azure/container-linux/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [low-priority](https://typhoon.psdn.io/cl/azure/#low-priority) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

azure/container-linux/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name = var.cluster_name
   api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]

azure/container-linux/kubernetes/cl/controller.yaml

@@ -7,7 +7,7 @@ systemd:
         - name: 40-etcd-cluster.conf
           contents: |
             [Service]
-            Environment="ETCD_IMAGE_TAG=v3.4.4"
+            Environment="ETCD_IMAGE_TAG=v3.4.7"
             Environment="ETCD_IMAGE_URL=docker://quay.io/coreos/etcd"
             Environment="RKT_RUN_ARGS=--insecure-options=image"
             Environment="ETCD_NAME=${etcd_name}"
@@ -90,8 +90,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -124,7 +123,6 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/rkt run \
             --trust-keys-from-https \
             --volume config,kind=host,source=/etc/kubernetes/bootstrap-secrets \
@@ -134,7 +132,7 @@ systemd:
             --volume script,kind=host,source=/opt/bootstrap/apply \
             --mount volume=script,target=/apply \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
             --exec=/apply
@@ -169,8 +167,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       filesystem: root
       mode: 0544
@@ -182,6 +182,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5

azure/container-linux/kubernetes/controllers.tf

@@ -65,9 +65,9 @@ resource "azurerm_linux_virtual_machine" "controllers" {
     for_each = local.flavor == "flatcar" ? [1] : []
 
     content {
-      name = local.channel
+      name      = local.channel
       publisher = "kinvolk"
-      product = "flatcar-container-linux"
+      product   = "flatcar-container-linux"
     }
   }
 
@@ -141,7 +141,7 @@ data "ct_config" "controller-ignitions" {
   count        = var.controller_count
   content      = data.template_file.controller-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = var.controller_clc_snippets
+  snippets     = var.controller_snippets
 }
 
 # Controller Container Linux configs

azure/container-linux/kubernetes/lb.tf

@@ -72,6 +72,7 @@ resource "azurerm_lb_rule" "ingress-http" {
   name                           = "ingress-http"
   loadbalancer_id                = azurerm_lb.cluster.id
   frontend_ip_configuration_name = "ingress"
+  disable_outbound_snat          = true
 
   protocol                = "Tcp"
   frontend_port           = 80
@@ -86,6 +87,7 @@ resource "azurerm_lb_rule" "ingress-https" {
   name                           = "ingress-https"
   loadbalancer_id                = azurerm_lb.cluster.id
   frontend_ip_configuration_name = "ingress"
+  disable_outbound_snat          = true
 
   protocol                = "Tcp"
   frontend_port           = 443
@@ -94,6 +96,20 @@ resource "azurerm_lb_rule" "ingress-https" {
   probe_id                = azurerm_lb_probe.ingress.id
 }
 
+# Worker outbound TCP/UDP SNAT
+resource "azurerm_lb_outbound_rule" "worker-outbound" {
+  resource_group_name = azurerm_resource_group.cluster.name
+
+  name            = "worker"
+  loadbalancer_id = azurerm_lb.cluster.id
+  frontend_ip_configuration {
+    name = "ingress"
+  }
+
+  protocol                = "All"
+  backend_address_pool_id = azurerm_lb_backend_address_pool.worker.id
+}
+
 # Address pool of controllers
 resource "azurerm_lb_backend_address_pool" "controller" {
   resource_group_name = azurerm_resource_group.cluster.name

azure/container-linux/kubernetes/variables.tf

@@ -64,13 +64,13 @@ variable "worker_priority" {
   default     = "Regular"
 }
 
-variable "controller_clc_snippets" {
+variable "controller_snippets" {
   type        = list(string)
   description = "Controller Container Linux Config snippets"
   default     = []
 }
 
-variable "worker_clc_snippets" {
+variable "worker_snippets" {
   type        = list(string)
   description = "Worker Container Linux Config snippets"
   default     = []

azure/container-linux/kubernetes/workers.tf

@@ -19,6 +19,6 @@ module "workers" {
   ssh_authorized_key    = var.ssh_authorized_key
   service_cidr          = var.service_cidr
   cluster_domain_suffix = var.cluster_domain_suffix
-  clc_snippets          = var.worker_clc_snippets
+  snippets              = var.worker_snippets
   node_labels           = var.worker_node_labels
 }

azure/container-linux/kubernetes/workers/cl/worker.yaml

@@ -63,8 +63,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -78,9 +77,9 @@ systemd:
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \
           --node-labels=node.kubernetes.io/node \
-          %{ for label in split(",", node_labels) }
+          %{~ for label in split(",", node_labels) ~}
           --node-labels=${label} \
-          %{ endfor ~}
+          %{~ endfor ~}
           --pod-manifest-path=/etc/kubernetes/manifests \
           --read-only-port=0 \
           --volume-plugin-dir=/var/lib/kubelet/volumeplugins
@@ -126,11 +125,10 @@ storage:
             --volume config,kind=host,source=/etc/kubernetes \
             --mount volume=config,target=/etc/kubernetes \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
-            -- \
-            kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname | tr '[:upper:]' '[:lower:]')
+            --exec=/usr/local/bin/kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname | tr '[:upper:]' '[:lower:]')
 passwd:
   users:
     - name: core

azure/container-linux/kubernetes/workers/variables.tf

@@ -56,7 +56,7 @@ variable "priority" {
   default     = "Regular"
 }
 
-variable "clc_snippets" {
+variable "snippets" {
   type        = list(string)
   description = "Container Linux Config snippets"
   default     = []

azure/container-linux/kubernetes/workers/workers.tf

@@ -9,19 +9,19 @@ locals {
 resource "azurerm_linux_virtual_machine_scale_set" "workers" {
   resource_group_name = var.resource_group_name
 
-  name                   = "${var.name}-worker"
-  location               = var.region
-  sku = var.vm_type
+  name      = "${var.name}-worker"
+  location  = var.region
+  sku       = var.vm_type
   instances = var.worker_count
   # instance name prefix for instances in the set
-  computer_name_prefix = "${var.name}-worker"
+  computer_name_prefix   = "${var.name}-worker"
   single_placement_group = false
-  custom_data          = base64encode(data.ct_config.worker-ignition.rendered)
+  custom_data            = base64encode(data.ct_config.worker-ignition.rendered)
 
   # storage
   os_disk {
     storage_account_type = "Standard_LRS"
-    caching           = "ReadWrite"
+    caching              = "ReadWrite"
   }
 
   source_image_reference {
@@ -36,16 +36,16 @@ resource "azurerm_linux_virtual_machine_scale_set" "workers" {
     for_each = local.flavor == "flatcar" ? [1] : []
 
     content {
-      name = local.channel
+      name      = local.channel
       publisher = "kinvolk"
-      product = "flatcar-container-linux"
+      product   = "flatcar-container-linux"
     }
   }
 
   # Azure requires setting admin_ssh_key, though Ignition custom_data handles it too
   admin_username = "core"
   admin_ssh_key {
-    username = "core"
+    username   = "core"
     public_key = var.ssh_authorized_key
   }
 
@@ -98,7 +98,7 @@ resource "azurerm_monitor_autoscale_setting" "workers" {
 data "ct_config" "worker-ignition" {
   content      = data.template_file.worker-config.rendered
   pretty_print = false
-  snippets     = var.clc_snippets
+  snippets     = var.snippets
 }
 
 # Worker Container Linux configs

bare-metal/container-linux/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

bare-metal/container-linux/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name                    = var.cluster_name
   api_servers                     = [var.k8s_domain_name]

bare-metal/container-linux/kubernetes/cl/controller.yaml

@@ -7,7 +7,7 @@ systemd:
         - name: 40-etcd-cluster.conf
           contents: |
             [Service]
-            Environment="ETCD_IMAGE_TAG=v3.4.4"
+            Environment="ETCD_IMAGE_TAG=v3.4.7"
             Environment="ETCD_IMAGE_URL=docker://quay.io/coreos/etcd"
             Environment="RKT_RUN_ARGS=--insecure-options=image"
             Environment="ETCD_NAME=${etcd_name}"
@@ -103,8 +103,7 @@ systemd:
           --mount volume=etc-iscsi,target=/etc/iscsi \
           --volume usr-sbin-iscsiadm,kind=host,source=/usr/sbin/iscsiadm \
           --mount volume=usr-sbin-iscsiadm,target=/sbin/iscsiadm \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -139,7 +138,6 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/rkt run \
             --trust-keys-from-https \
             --volume config,kind=host,source=/etc/kubernetes/bootstrap-secrets \
@@ -149,7 +147,7 @@ systemd:
             --volume script,kind=host,source=/opt/bootstrap/apply \
             --mount volume=script,target=/apply \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
             --exec=/apply
@@ -187,8 +185,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       filesystem: root
       mode: 0544
@@ -200,6 +200,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5

bare-metal/container-linux/kubernetes/cl/worker.yaml

@@ -76,8 +76,7 @@ systemd:
           --mount volume=etc-iscsi,target=/etc/iscsi \
           --volume usr-sbin-iscsiadm,kind=host,source=/usr/sbin/iscsiadm \
           --mount volume=usr-sbin-iscsiadm,target=/sbin/iscsiadm \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \

bare-metal/container-linux/kubernetes/profiles.tf

@@ -144,7 +144,7 @@ data "ct_config" "controller-ignitions" {
   count        = length(var.controllers)
   content      = data.template_file.controller-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = local.clc_map[var.controllers.*.name[count.index]]
+  snippets     = lookup(var.snippets, var.controllers.*.name[count.index], [])
 }
 
 data "template_file" "controller-configs" {
@@ -174,7 +174,7 @@ data "ct_config" "worker-ignitions" {
   count        = length(var.workers)
   content      = data.template_file.worker-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = local.clc_map[var.workers.*.name[count.index]]
+  snippets     = lookup(var.snippets, var.workers.*.name[count.index], [])
 }
 
 data "template_file" "worker-configs" {
@@ -192,24 +192,3 @@ data "template_file" "worker-configs" {
     node_taints            = join(",", lookup(var.worker_node_taints, var.workers.*.name[count.index], []))
   }
 }
-
-locals {
-  # Hack to workaround https://github.com/hashicorp/terraform/issues/17251
-  # Still an issue in Terraform v0.12 https://github.com/hashicorp/terraform/issues/20572
-  # Default Container Linux config snippets map every node names to list("\n") so
-  # all lookups succeed
-  clc_defaults = zipmap(
-    concat(var.controllers.*.name, var.workers.*.name),
-    chunklist(data.template_file.clc-default-snippets.*.rendered, 1),
-  )
-
-  # Union of the default and user specific snippets, later overrides prior.
-  clc_map = merge(local.clc_defaults, var.clc_snippets)
-}
-
-// Horrible hack to generate a Terraform list of node count length
-data "template_file" "clc-default-snippets" {
-  count    = length(var.controllers) + length(var.workers)
-  template = "\n"
-}
-

bare-metal/container-linux/kubernetes/variables.tf

@@ -49,22 +49,22 @@ List of worker machine details (unique name, identifying MAC address, FQDN)
 EOD
 }
 
-variable "clc_snippets" {
+variable "snippets" {
   type        = map(list(string))
   description = "Map from machine names to lists of Container Linux Config snippets"
   default     = {}
 }
 
 variable "worker_node_labels" {
-  type = map(list(string))
+  type        = map(list(string))
   description = "Map from worker names to lists of initial node labels"
-  default = {}
+  default     = {}
 }
 
 variable "worker_node_taints" {
-  type = map(list(string))
+  type        = map(list(string))
   description = "Map from worker names to lists of initial node taints"
-  default = {}
+  default     = {}
 }
 
 # configuration

bare-metal/fedora-coreos/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

bare-metal/fedora-coreos/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name                    = var.cluster_name
   api_servers                     = [var.k8s_domain_name]

bare-metal/fedora-coreos/kubernetes/fcc/controller.yaml

@@ -28,7 +28,7 @@ systemd:
           --network host \
           --volume /var/lib/etcd:/var/lib/etcd:rw,Z \
           --volume /etc/ssl/etcd:/etc/ssl/certs:ro,Z \
-          quay.io/coreos/etcd:v3.4.4
+          quay.io/coreos/etcd:v3.4.7
         ExecStop=/usr/bin/podman stop etcd
         [Install]
         WantedBy=multi-user.target
@@ -80,7 +80,7 @@ systemd:
           --volume /opt/cni/bin:/opt/cni/bin:z \
           --volume /etc/iscsi:/etc/iscsi \
           --volume /sbin/iscsiadm:/sbin/iscsiadm \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -127,14 +127,13 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/podman run --name bootstrap \
             --network host \
             --volume /etc/kubernetes/bootstrap-secrets:/etc/kubernetes/secrets:ro,Z \
             --volume /opt/bootstrap/assets:/assets:ro,Z \
             --volume /opt/bootstrap/apply:/apply:ro,Z \
             --entrypoint=/apply \
-            k8s.gcr.io/hyperkube:v1.17.4
+            quay.io/poseidon/kubelet:v1.18.1
         ExecStartPost=/bin/touch /opt/bootstrap/bootstrap.done
         ExecStartPost=-/usr/bin/podman stop bootstrap
 storage:
@@ -166,8 +165,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       mode: 0544
       contents:
@@ -178,6 +179,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5
@@ -193,19 +198,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
     - path: /etc/etcd/etcd.env
       mode: 0644
       contents:

bare-metal/fedora-coreos/kubernetes/fcc/worker.yaml

@@ -50,7 +50,7 @@ systemd:
           --volume /opt/cni/bin:/opt/cni/bin:z \
           --volume /etc/iscsi:/etc/iscsi \
           --volume /sbin/iscsiadm:/sbin/iscsiadm \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -112,19 +112,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
 passwd:
   users:
     - name: core

bare-metal/fedora-coreos/kubernetes/profiles.tf

@@ -48,8 +48,9 @@ resource "matchbox_profile" "controllers" {
 data "ct_config" "controller-ignitions" {
   count = length(var.controllers)
 
-  content = data.template_file.controller-configs.*.rendered[count.index]
-  strict  = true
+  content  = data.template_file.controller-configs.*.rendered[count.index]
+  strict   = true
+  snippets = lookup(var.snippets, var.controllers.*.name[count.index], [])
 }
 
 data "template_file" "controller-configs" {
@@ -83,8 +84,9 @@ resource "matchbox_profile" "workers" {
 data "ct_config" "worker-ignitions" {
   count = length(var.workers)
 
-  content = data.template_file.worker-configs.*.rendered[count.index]
-  strict  = true
+  content  = data.template_file.worker-configs.*.rendered[count.index]
+  strict   = true
+  snippets = lookup(var.snippets, var.workers.*.name[count.index], [])
 }
 
 data "template_file" "worker-configs" {

bare-metal/fedora-coreos/kubernetes/variables.tf

@@ -13,12 +13,12 @@ variable "matchbox_http_endpoint" {
 variable "os_stream" {
   type        = string
   description = "Fedora CoreOS release stream (e.g. testing, stable)"
-  default     = "testing"
+  default     = "stable"
 }
 
 variable "os_version" {
   type        = string
-  description = "Fedora CoreOS version to PXE and install (e.g. 30.20190712.0)"
+  description = "Fedora CoreOS version to PXE and install (e.g. 31.20200310.3.0)"
 }
 
 # machines
@@ -57,15 +57,15 @@ variable "snippets" {
 }
 
 variable "worker_node_labels" {
-  type = map(list(string))
+  type        = map(list(string))
   description = "Map from worker names to lists of initial node labels"
-  default = {}
+  default     = {}
 }
 
 variable "worker_node_taints" {
-  type = map(list(string))
+  type        = map(list(string))
   description = "Map from worker names to lists of initial node taints"
-  default = {}
+  default     = {}
 }
 
 # configuration

digital-ocean/container-linux/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

digital-ocean/container-linux/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name = var.cluster_name
   api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]

digital-ocean/container-linux/kubernetes/cl/controller.yaml

@@ -7,7 +7,7 @@ systemd:
         - name: 40-etcd-cluster.conf
           contents: |
             [Service]
-            Environment="ETCD_IMAGE_TAG=v3.4.4"
+            Environment="ETCD_IMAGE_TAG=v3.4.7"
             Environment="ETCD_IMAGE_URL=docker://quay.io/coreos/etcd"
             Environment="RKT_RUN_ARGS=--insecure-options=image"
             Environment="ETCD_NAME=${etcd_name}"
@@ -101,8 +101,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -136,7 +135,6 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/rkt run \
             --trust-keys-from-https \
             --volume config,kind=host,source=/etc/kubernetes/bootstrap-secrets \
@@ -146,7 +144,7 @@ systemd:
             --volume script,kind=host,source=/opt/bootstrap/apply \
             --mount volume=script,target=/apply \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
             --exec=/apply
@@ -178,8 +176,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       filesystem: root
       mode: 0544
@@ -191,6 +191,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5

digital-ocean/container-linux/kubernetes/cl/worker.yaml

@@ -74,8 +74,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -132,8 +131,7 @@ storage:
             --volume config,kind=host,source=/etc/kubernetes \
             --mount volume=config,target=/etc/kubernetes \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
-            -- \
-            kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
+            --exec=/usr/local/bin/kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)

digital-ocean/container-linux/kubernetes/controllers.tf

@@ -1,6 +1,6 @@
 locals {
-  official_images = ["coreos-stable", "coreos-beta", "coreos-alpha"]
-  is_official_image = contains(local.official_images, var.image)
+  official_images   = ["coreos-stable", "coreos-beta", "coreos-alpha"]
+  is_official_image = contains(local.official_images, var.os_image)
 }
 
 # Controller Instance DNS records
@@ -42,7 +42,7 @@ resource "digitalocean_droplet" "controllers" {
   name   = "${var.cluster_name}-controller-${count.index}"
   region = var.region
 
-  image = var.image
+  image = var.os_image
   size  = var.controller_type
 
   # network
@@ -72,7 +72,7 @@ data "ct_config" "controller-ignitions" {
   count        = var.controller_count
   content      = data.template_file.controller-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = var.controller_clc_snippets
+  snippets     = var.controller_snippets
 }
 
 # Controller Container Linux configs

digital-ocean/container-linux/kubernetes/variables.tf

@@ -41,19 +41,19 @@ variable "worker_type" {
   default     = "s-1vcpu-2gb"
 }
 
-variable "image" {
+variable "os_image" {
   type        = string
   description = "Container Linux image for instances (e.g. coreos-stable)"
   default     = "coreos-stable"
 }
 
-variable "controller_clc_snippets" {
+variable "controller_snippets" {
   type        = list(string)
   description = "Controller Container Linux Config snippets"
   default     = []
 }
 
-variable "worker_clc_snippets" {
+variable "worker_snippets" {
   type        = list(string)
   description = "Worker Container Linux Config snippets"
   default     = []

digital-ocean/container-linux/kubernetes/workers.tf

@@ -31,7 +31,7 @@ resource "digitalocean_droplet" "workers" {
   name   = "${var.cluster_name}-worker-${count.index}"
   region = var.region
 
-  image = var.image
+  image = var.os_image
   size  = var.worker_type
 
   # network
@@ -60,7 +60,7 @@ resource "digitalocean_tag" "workers" {
 data "ct_config" "worker-ignition" {
   content      = data.template_file.worker-config.rendered
   pretty_print = false
-  snippets     = var.worker_clc_snippets
+  snippets     = var.worker_snippets
 }
 
 # Worker Container Linux config

digital-ocean/fedora-coreos/kubernetes/LICENSE

@@ -0,0 +1,23 @@
+The MIT License (MIT)
+
+Copyright (c) 2020 Typhoon Authors
+Copyright (c) 2020 Dalton Hubble
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+

digital-ocean/fedora-coreos/kubernetes/README.md

@@ -0,0 +1,23 @@
+# Typhoon <img align="right" src="https://storage.googleapis.com/poseidon/typhoon-logo.png">
+
+Typhoon is a minimal and free Kubernetes distribution.
+
+* Minimal, stable base Kubernetes distribution
+* Declarative infrastructure and configuration
+* Free (freedom and cost) and privacy-respecting
+* Practical for labs, datacenters, and clouds
+
+Typhoon distributes upstream Kubernetes, architectural conventions, and cluster addons, much like a GNU/Linux distribution provides the Linux kernel and userspace components.
+
+## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
+
+* Kubernetes v1.18.1 (upstream)
+* Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
+* On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
+* Advanced features like [snippets](https://typhoon.psdn.io/advanced/customization/) customization
+* Ready for Ingress, Prometheus, Grafana, CSI, and other [addons](https://typhoon.psdn.io/addons/overview/)
+
+## Docs
+
+Please see the [official docs](https://typhoon.psdn.io) and the Digital Ocean [tutorial](https://typhoon.psdn.io/fedora-coreos/digitalocean/).
+

digital-ocean/fedora-coreos/kubernetes/bootstrap.tf

@@ -0,0 +1,25 @@
+# Kubernetes assets (kubeconfig, manifests)
+module "bootstrap" {
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
+
+  cluster_name = var.cluster_name
+  api_servers  = [format("%s.%s", var.cluster_name, var.dns_zone)]
+  etcd_servers = digitalocean_record.etcds.*.fqdn
+  asset_dir    = var.asset_dir
+
+  networking = var.networking
+
+  # only effective with Calico networking
+  network_encapsulation = "vxlan"
+  network_mtu           = "1450"
+
+  pod_cidr              = var.pod_cidr
+  service_cidr          = var.service_cidr
+  cluster_domain_suffix = var.cluster_domain_suffix
+  enable_reporting      = var.enable_reporting
+  enable_aggregation    = var.enable_aggregation
+
+  # Fedora CoreOS
+  trusted_certs_dir = "/etc/pki/tls/certs"
+}
+

digital-ocean/fedora-coreos/kubernetes/controllers.tf

@@ -0,0 +1,100 @@
+# Controller Instance DNS records
+resource "digitalocean_record" "controllers" {
+  count = var.controller_count
+
+  # DNS zone where record should be created
+  domain = var.dns_zone
+
+  # DNS record (will be prepended to domain)
+  name = var.cluster_name
+  type = "A"
+  ttl  = 300
+
+  # IPv4 addresses of controllers
+  value = digitalocean_droplet.controllers.*.ipv4_address[count.index]
+}
+
+# Discrete DNS records for each controller's private IPv4 for etcd usage
+resource "digitalocean_record" "etcds" {
+  count = var.controller_count
+
+  # DNS zone where record should be created
+  domain = var.dns_zone
+
+  # DNS record (will be prepended to domain)
+  name = "${var.cluster_name}-etcd${count.index}"
+  type = "A"
+  ttl  = 300
+
+  # private IPv4 address for etcd
+  value = digitalocean_droplet.controllers.*.ipv4_address_private[count.index]
+}
+
+# Controller droplet instances
+resource "digitalocean_droplet" "controllers" {
+  count = var.controller_count
+
+  name   = "${var.cluster_name}-controller-${count.index}"
+  region = var.region
+
+  image = var.os_image
+  size  = var.controller_type
+
+  # network
+  # TODO: Only official DigitalOcean images support IPv6
+  ipv6               = false
+  private_networking = true
+
+  user_data = data.ct_config.controller-ignitions.*.rendered[count.index]
+  ssh_keys  = var.ssh_fingerprints
+
+  tags = [
+    digitalocean_tag.controllers.id,
+  ]
+
+  lifecycle {
+    ignore_changes = [user_data]
+  }
+}
+
+# Tag to label controllers
+resource "digitalocean_tag" "controllers" {
+  name = "${var.cluster_name}-controller"
+}
+
+# Controller Ignition configs
+data "ct_config" "controller-ignitions" {
+  count        = var.controller_count
+  content      = data.template_file.controller-configs.*.rendered[count.index]
+  strict       = true
+  snippets     = var.controller_snippets
+}
+
+# Controller Fedora CoreOS configs
+data "template_file" "controller-configs" {
+  count = var.controller_count
+
+  template = file("${path.module}/fcc/controller.yaml")
+
+  vars = {
+    # Cannot use cyclic dependencies on controllers or their DNS records
+    etcd_name   = "etcd${count.index}"
+    etcd_domain = "${var.cluster_name}-etcd${count.index}.${var.dns_zone}"
+    # etcd0=https://cluster-etcd0.example.com,etcd1=https://cluster-etcd1.example.com,...
+    etcd_initial_cluster   = join(",", data.template_file.etcds.*.rendered)
+    cluster_dns_service_ip = cidrhost(var.service_cidr, 10)
+    cluster_domain_suffix  = var.cluster_domain_suffix
+  }
+}
+
+data "template_file" "etcds" {
+  count    = var.controller_count
+  template = "etcd$${index}=https://$${cluster_name}-etcd$${index}.$${dns_zone}:2380"
+
+  vars = {
+    index        = count.index
+    cluster_name = var.cluster_name
+    dns_zone     = var.dns_zone
+  }
+}
+

digital-ocean/fedora-coreos/kubernetes/fcc/controller.yaml

@@ -0,0 +1,214 @@
+---
+variant: fcos
+version: 1.0.0
+systemd:
+  units:
+    - name: etcd-member.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=etcd (System Container)
+        Documentation=https://github.com/coreos/etcd
+        Wants=network-online.target network.target
+        After=network-online.target
+        [Service]
+        # https://github.com/opencontainers/runc/pull/1807
+        # Type=notify
+        # NotifyAccess=exec
+        Type=exec
+        Restart=on-failure
+        RestartSec=10s
+        TimeoutStartSec=0
+        LimitNOFILE=40000
+        ExecStartPre=/bin/mkdir -p /var/lib/etcd
+        ExecStartPre=-/usr/bin/podman rm etcd
+        #--volume $${NOTIFY_SOCKET}:/run/systemd/notify \
+        ExecStart=/usr/bin/podman run --name etcd \
+          --env-file /etc/etcd/etcd.env \
+          --network host \
+          --volume /var/lib/etcd:/var/lib/etcd:rw,Z \
+          --volume /etc/ssl/etcd:/etc/ssl/certs:ro,Z \
+          quay.io/coreos/etcd:v3.4.7
+        ExecStop=/usr/bin/podman stop etcd
+        [Install]
+        WantedBy=multi-user.target
+    - name: docker.service
+      enabled: true
+    - name: wait-for-dns.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Wait for DNS entries
+        Before=kubelet.service
+        [Service]
+        Type=oneshot
+        RemainAfterExit=true
+        ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
+        [Install]
+        RequiredBy=kubelet.service
+        RequiredBy=etcd-member.service
+    - name: kubelet.service
+      contents: |
+        [Unit]
+        Description=Kubelet via Hyperkube (System Container)
+        Requires=afterburn.service
+        After=afterburn.service
+        Wants=rpc-statd.service
+        [Service]
+        EnvironmentFile=/run/metadata/afterburn
+        ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
+        ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
+        ExecStartPre=/bin/mkdir -p /opt/cni/bin
+        ExecStartPre=/bin/mkdir -p /var/lib/calico
+        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
+        ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
+        ExecStartPre=-/usr/bin/podman rm kubelet
+        ExecStart=/usr/bin/podman run --name kubelet \
+          --privileged \
+          --pid host \
+          --network host \
+          --volume /etc/kubernetes:/etc/kubernetes:ro,z \
+          --volume /usr/lib/os-release:/etc/os-release:ro \
+          --volume /etc/ssl/certs:/etc/ssl/certs:ro \
+          --volume /lib/modules:/lib/modules:ro \
+          --volume /run:/run \
+          --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
+          --volume /sys/fs/cgroup/systemd:/sys/fs/cgroup/systemd \
+          --volume /etc/pki/tls/certs:/usr/share/ca-certificates:ro \
+          --volume /var/lib/calico:/var/lib/calico:ro \
+          --volume /var/lib/docker:/var/lib/docker \
+          --volume /var/lib/kubelet:/var/lib/kubelet:rshared,z \
+          --volume /var/log:/var/log \
+          --volume /var/run/lock:/var/run/lock:z \
+          --volume /opt/cni/bin:/opt/cni/bin:z \
+          quay.io/poseidon/kubelet:v1.18.1 \
+          --anonymous-auth=false \
+          --authentication-token-webhook \
+          --authorization-mode=Webhook \
+          --cgroup-driver=systemd \
+          --cgroups-per-qos=true \
+          --enforce-node-allocatable=pods \
+          --client-ca-file=/etc/kubernetes/ca.crt \
+          --cluster_dns=${cluster_dns_service_ip} \
+          --cluster_domain=${cluster_domain_suffix} \
+          --cni-conf-dir=/etc/kubernetes/cni/net.d \
+          --exit-on-lock-contention \
+          --healthz-port=0 \
+          --hostname-override=$${AFTERBURN_DIGITALOCEAN_IPV4_PRIVATE_0} \
+          --kubeconfig=/etc/kubernetes/kubeconfig \
+          --lock-file=/var/run/lock/kubelet.lock \
+          --network-plugin=cni \
+          --node-labels=node.kubernetes.io/master \
+          --node-labels=node.kubernetes.io/controller="true" \
+          --pod-manifest-path=/etc/kubernetes/manifests \
+          --read-only-port=0 \
+          --register-with-taints=node-role.kubernetes.io/master=:NoSchedule \
+          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
+        ExecStop=-/usr/bin/podman stop kubelet
+        Delegate=yes
+        Restart=always
+        RestartSec=10
+        [Install]
+        WantedBy=multi-user.target
+    - name: kubelet.path
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Watch for kubeconfig
+        [Path]
+        PathExists=/etc/kubernetes/kubeconfig
+        [Install]
+        WantedBy=multi-user.target
+    - name: bootstrap.service
+      contents: |
+        [Unit]
+        Description=Kubernetes control plane
+        ConditionPathExists=!/opt/bootstrap/bootstrap.done
+        [Service]
+        Type=oneshot
+        RemainAfterExit=true
+        WorkingDirectory=/opt/bootstrap
+        ExecStartPre=-/usr/bin/podman rm bootstrap
+        ExecStart=/usr/bin/podman run --name bootstrap \
+            --network host \
+            --volume /etc/kubernetes/bootstrap-secrets:/etc/kubernetes/secrets:ro,Z \
+            --volume /opt/bootstrap/assets:/assets:ro,Z \
+            --volume /opt/bootstrap/apply:/apply:ro,Z \
+            --entrypoint=/apply \
+            quay.io/poseidon/kubelet:v1.18.1
+        ExecStartPost=/bin/touch /opt/bootstrap/bootstrap.done
+        ExecStartPost=-/usr/bin/podman stop bootstrap
+storage:
+  directories:
+    - path: /etc/kubernetes
+    - path: /opt/bootstrap
+  files:
+    - path: /opt/bootstrap/layout
+      mode: 0544
+      contents:
+        inline: |
+          #!/bin/bash -e
+          mkdir -p -- auth tls/etcd tls/k8s static-manifests manifests/coredns manifests-networking
+          awk '/#####/ {filename=$2; next} {print > filename}' assets
+          mkdir -p /etc/ssl/etcd/etcd
+          mkdir -p /etc/kubernetes/bootstrap-secrets
+          mv tls/etcd/{peer*,server*} /etc/ssl/etcd/etcd/
+          mv tls/etcd/etcd-client* /etc/kubernetes/bootstrap-secrets/
+          chown -R etcd:etcd /etc/ssl/etcd
+          chmod -R 500 /etc/ssl/etcd
+          mv auth/kubeconfig /etc/kubernetes/bootstrap-secrets/
+          mv tls/k8s/* /etc/kubernetes/bootstrap-secrets/
+          sudo mkdir -p /etc/kubernetes/manifests
+          sudo mv static-manifests/* /etc/kubernetes/manifests/
+          sudo mkdir -p /opt/bootstrap/assets
+          sudo mv manifests /opt/bootstrap/assets/manifests
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
+    - path: /opt/bootstrap/apply
+      mode: 0544
+      contents:
+        inline: |
+          #!/bin/bash -e
+          export KUBECONFIG=/etc/kubernetes/secrets/kubeconfig
+          until kubectl version; do
+            echo "Waiting for static pod control plane"
+            sleep 5
+          done
+          until kubectl apply -f /assets/manifests -R; do
+             echo "Retry applying manifests"
+             sleep 5
+          done
+    - path: /etc/sysctl.d/max-user-watches.conf
+      contents:
+        inline: |
+          fs.inotify.max_user_watches=16184
+    - path: /etc/systemd/system.conf.d/accounting.conf
+      contents:
+        inline: |
+          [Manager]
+          DefaultCPUAccounting=yes
+          DefaultMemoryAccounting=yes
+          DefaultBlockIOAccounting=yes
+    - path: /etc/etcd/etcd.env
+      mode: 0644
+      contents:
+        inline: |
+          # TODO: Use a systemd dropin once podman v1.4.5 is avail.
+          NOTIFY_SOCKET=/run/systemd/notify
+          ETCD_NAME=${etcd_name}
+          ETCD_DATA_DIR=/var/lib/etcd
+          ETCD_ADVERTISE_CLIENT_URLS=https://${etcd_domain}:2379
+          ETCD_INITIAL_ADVERTISE_PEER_URLS=https://${etcd_domain}:2380
+          ETCD_LISTEN_CLIENT_URLS=https://0.0.0.0:2379
+          ETCD_LISTEN_PEER_URLS=https://0.0.0.0:2380
+          ETCD_LISTEN_METRICS_URLS=http://0.0.0.0:2381
+          ETCD_INITIAL_CLUSTER=${etcd_initial_cluster}
+          ETCD_STRICT_RECONFIG_CHECK=true
+          ETCD_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/server-ca.crt
+          ETCD_CERT_FILE=/etc/ssl/certs/etcd/server.crt
+          ETCD_KEY_FILE=/etc/ssl/certs/etcd/server.key
+          ETCD_CLIENT_CERT_AUTH=true
+          ETCD_PEER_TRUSTED_CA_FILE=/etc/ssl/certs/etcd/peer-ca.crt
+          ETCD_PEER_CERT_FILE=/etc/ssl/certs/etcd/peer.crt
+          ETCD_PEER_KEY_FILE=/etc/ssl/certs/etcd/peer.key
+          ETCD_PEER_CLIENT_CERT_AUTH=true

digital-ocean/fedora-coreos/kubernetes/fcc/worker.yaml

@@ -0,0 +1,117 @@
+---
+variant: fcos
+version: 1.0.0
+systemd:
+  units:
+    - name: docker.service
+      enabled: true
+    - name: wait-for-dns.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Wait for DNS entries
+        Before=kubelet.service
+        [Service]
+        Type=oneshot
+        RemainAfterExit=true
+        ExecStart=/bin/sh -c 'while ! /usr/bin/grep '^[^#[:space:]]' /etc/resolv.conf > /dev/null; do sleep 1; done'
+        [Install]
+        RequiredBy=kubelet.service
+    - name: kubelet.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Kubelet via Hyperkube (System Container)
+        Requires=afterburn.service
+        After=afterburn.service
+        Wants=rpc-statd.service
+        [Service]
+        EnvironmentFile=/run/metadata/afterburn
+        ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
+        ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
+        ExecStartPre=/bin/mkdir -p /opt/cni/bin
+        ExecStartPre=/bin/mkdir -p /var/lib/calico
+        ExecStartPre=/bin/mkdir -p /var/lib/kubelet/volumeplugins
+        ExecStartPre=/usr/bin/bash -c "grep 'certificate-authority-data' /etc/kubernetes/kubeconfig | awk '{print $2}' | base64 -d > /etc/kubernetes/ca.crt"
+        ExecStartPre=-/usr/bin/podman rm kubelet
+        ExecStart=/usr/bin/podman run --name kubelet \
+          --privileged \
+          --pid host \
+          --network host \
+          --volume /etc/kubernetes:/etc/kubernetes:ro,z \
+          --volume /usr/lib/os-release:/etc/os-release:ro \
+          --volume /etc/ssl/certs:/etc/ssl/certs:ro \
+          --volume /lib/modules:/lib/modules:ro \
+          --volume /run:/run \
+          --volume /sys/fs/cgroup:/sys/fs/cgroup:ro \
+          --volume /sys/fs/cgroup/systemd:/sys/fs/cgroup/systemd \
+          --volume /etc/pki/tls/certs:/usr/share/ca-certificates:ro \
+          --volume /var/lib/calico:/var/lib/calico:ro \
+          --volume /var/lib/docker:/var/lib/docker \
+          --volume /var/lib/kubelet:/var/lib/kubelet:rshared,z \
+          --volume /var/log:/var/log \
+          --volume /var/run/lock:/var/run/lock:z \
+          --volume /opt/cni/bin:/opt/cni/bin:z \
+          quay.io/poseidon/kubelet:v1.18.1 \
+          --anonymous-auth=false \
+          --authentication-token-webhook \
+          --authorization-mode=Webhook \
+          --cgroup-driver=systemd \
+          --cgroups-per-qos=true \
+          --enforce-node-allocatable=pods \
+          --client-ca-file=/etc/kubernetes/ca.crt \
+          --cluster_dns=${cluster_dns_service_ip} \
+          --cluster_domain=${cluster_domain_suffix} \
+          --cni-conf-dir=/etc/kubernetes/cni/net.d \
+          --exit-on-lock-contention \
+          --healthz-port=0 \
+          --hostname-override=$${AFTERBURN_DIGITALOCEAN_IPV4_PRIVATE_0} \
+          --kubeconfig=/etc/kubernetes/kubeconfig \
+          --lock-file=/var/run/lock/kubelet.lock \
+          --network-plugin=cni \
+          --node-labels=node.kubernetes.io/node \
+          --pod-manifest-path=/etc/kubernetes/manifests \
+          --read-only-port=0 \
+          --volume-plugin-dir=/var/lib/kubelet/volumeplugins
+        ExecStop=-/usr/bin/podman stop kubelet
+        Delegate=yes
+        Restart=always
+        RestartSec=10
+        [Install]
+        WantedBy=multi-user.target
+    - name: kubelet.path
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Watch for kubeconfig
+        [Path]
+        PathExists=/etc/kubernetes/kubeconfig
+        [Install]
+        WantedBy=multi-user.target
+    - name: delete-node.service
+      enabled: true
+      contents: |
+        [Unit]
+        Description=Delete Kubernetes node on shutdown
+        [Service]
+        Type=oneshot
+        RemainAfterExit=true
+        ExecStart=/bin/true
+        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z --entrypoint /usr/local/bin/kubectl quay.io/poseidon/kubelet:v1.18.1 --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
+        [Install]
+        WantedBy=multi-user.target
+storage:
+  directories:
+    - path: /etc/kubernetes
+  files:
+    - path: /etc/sysctl.d/max-user-watches.conf
+      contents:
+        inline: |
+          fs.inotify.max_user_watches=16184
+    - path: /etc/systemd/system.conf.d/accounting.conf
+      contents:
+        inline: |
+          [Manager]
+          DefaultCPUAccounting=yes
+          DefaultMemoryAccounting=yes
+          DefaultBlockIOAccounting=yes

digital-ocean/fedora-coreos/kubernetes/network.tf

@@ -0,0 +1,117 @@
+resource "digitalocean_firewall" "rules" {
+  name = var.cluster_name
+
+  tags = ["${var.cluster_name}-controller", "${var.cluster_name}-worker"]
+
+  # allow ssh, internal flannel, internal node-exporter, internal kubelet
+  inbound_rule {
+    protocol         = "tcp"
+    port_range       = "22"
+    source_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  inbound_rule {
+    protocol    = "udp"
+    port_range  = "4789"
+    source_tags = [digitalocean_tag.controllers.name, digitalocean_tag.workers.name]
+  }
+
+  # Allow Prometheus to scrape node-exporter
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "9100"
+    source_tags = [digitalocean_tag.workers.name]
+  }
+
+  # Allow Prometheus to scrape kube-proxy
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "10249"
+    source_tags = [digitalocean_tag.workers.name]
+  }
+
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "10250"
+    source_tags = [digitalocean_tag.controllers.name, digitalocean_tag.workers.name]
+  }
+
+  # allow all outbound traffic
+  outbound_rule {
+    protocol              = "tcp"
+    port_range            = "1-65535"
+    destination_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  outbound_rule {
+    protocol              = "udp"
+    port_range            = "1-65535"
+    destination_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  outbound_rule {
+    protocol              = "icmp"
+    port_range            = "1-65535"
+    destination_addresses = ["0.0.0.0/0", "::/0"]
+  }
+}
+
+resource "digitalocean_firewall" "controllers" {
+  name = "${var.cluster_name}-controllers"
+
+  tags = ["${var.cluster_name}-controller"]
+
+  # etcd
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "2379-2380"
+    source_tags = [digitalocean_tag.controllers.name]
+  }
+
+  # etcd metrics
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "2381"
+    source_tags = [digitalocean_tag.workers.name]
+  }
+
+  # kube-apiserver
+  inbound_rule {
+    protocol         = "tcp"
+    port_range       = "6443"
+    source_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  # kube-scheduler metrics, kube-controller-manager metrics
+  inbound_rule {
+    protocol    = "tcp"
+    port_range  = "10251-10252"
+    source_tags = [digitalocean_tag.workers.name]
+  }
+}
+
+resource "digitalocean_firewall" "workers" {
+  name = "${var.cluster_name}-workers"
+
+  tags = ["${var.cluster_name}-worker"]
+
+  # allow HTTP/HTTPS ingress
+  inbound_rule {
+    protocol         = "tcp"
+    port_range       = "80"
+    source_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  inbound_rule {
+    protocol         = "tcp"
+    port_range       = "443"
+    source_addresses = ["0.0.0.0/0", "::/0"]
+  }
+
+  inbound_rule {
+    protocol         = "tcp"
+    port_range       = "10254"
+    source_addresses = ["0.0.0.0/0"]
+  }
+}
+

digital-ocean/fedora-coreos/kubernetes/outputs.tf

@@ -0,0 +1,47 @@
+output "kubeconfig-admin" {
+  value = module.bootstrap.kubeconfig-admin
+}
+
+output "controllers_dns" {
+  value = digitalocean_record.controllers[0].fqdn
+}
+
+output "workers_dns" {
+  # Multiple A and AAAA records with the same FQDN
+  value = digitalocean_record.workers-record-a[0].fqdn
+}
+
+output "controllers_ipv4" {
+  value = digitalocean_droplet.controllers.*.ipv4_address
+}
+
+output "controllers_ipv6" {
+  value = digitalocean_droplet.controllers.*.ipv6_address
+}
+
+output "workers_ipv4" {
+  value = digitalocean_droplet.workers.*.ipv4_address
+}
+
+output "workers_ipv6" {
+  value = digitalocean_droplet.workers.*.ipv6_address
+}
+
+# Outputs for worker pools
+
+output "kubeconfig" {
+  value = module.bootstrap.kubeconfig-kubelet
+}
+
+# Outputs for custom firewalls
+
+output "controller_tag" {
+  description = "Tag applied to controller droplets"
+  value       = digitalocean_tag.controllers.name
+}
+
+output "worker_tag" {
+  description = "Tag applied to worker droplets"
+  value       = digitalocean_tag.workers.name
+}
+

digital-ocean/fedora-coreos/kubernetes/ssh.tf

@@ -0,0 +1,87 @@
+locals {
+  # format assets for distribution
+  assets_bundle = [
+    # header with the unpack location
+    for key, value in module.bootstrap.assets_dist :
+    format("##### %s\n%s", key, value)
+  ]
+}
+
+# Secure copy assets to controllers. Activates kubelet.service
+resource "null_resource" "copy-controller-secrets" {
+  count = var.controller_count
+
+  depends_on = [
+    module.bootstrap,
+    digitalocean_firewall.rules
+  ]
+
+  connection {
+    type    = "ssh"
+    host    = digitalocean_droplet.controllers.*.ipv4_address[count.index]
+    user    = "core"
+    timeout = "15m"
+  }
+
+  provisioner "file" {
+    content     = module.bootstrap.kubeconfig-kubelet
+    destination = "$HOME/kubeconfig"
+  }
+
+  provisioner "file" {
+    content     = join("\n", local.assets_bundle)
+    destination = "$HOME/assets"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "sudo mv $HOME/kubeconfig /etc/kubernetes/kubeconfig",
+      "sudo /opt/bootstrap/layout",
+    ]
+  }
+}
+
+# Secure copy kubeconfig to all workers. Activates kubelet.service.
+resource "null_resource" "copy-worker-secrets" {
+  count = var.worker_count
+
+  connection {
+    type    = "ssh"
+    host    = digitalocean_droplet.workers.*.ipv4_address[count.index]
+    user    = "core"
+    timeout = "15m"
+  }
+
+  provisioner "file" {
+    content     = module.bootstrap.kubeconfig-kubelet
+    destination = "$HOME/kubeconfig"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "sudo mv $HOME/kubeconfig /etc/kubernetes/kubeconfig",
+    ]
+  }
+}
+
+# Connect to a controller to perform one-time cluster bootstrap.
+resource "null_resource" "bootstrap" {
+  depends_on = [
+    null_resource.copy-controller-secrets,
+    null_resource.copy-worker-secrets,
+  ]
+
+  connection {
+    type    = "ssh"
+    host    = digitalocean_droplet.controllers[0].ipv4_address
+    user    = "core"
+    timeout = "15m"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "sudo systemctl start bootstrap",
+    ]
+  }
+}
+

digital-ocean/fedora-coreos/kubernetes/variables.tf

@@ -0,0 +1,114 @@
+variable "cluster_name" {
+  type        = string
+  description = "Unique cluster name (prepended to dns_zone)"
+}
+
+# Digital Ocean
+
+variable "region" {
+  type        = string
+  description = "Digital Ocean region (e.g. nyc1, sfo2, fra1, tor1)"
+}
+
+variable "dns_zone" {
+  type        = string
+  description = "Digital Ocean domain (i.e. DNS zone) (e.g. do.example.com)"
+}
+
+# instances
+
+variable "controller_count" {
+  type        = number
+  description = "Number of controllers (i.e. masters)"
+  default     = 1
+}
+
+variable "worker_count" {
+  type        = number
+  description = "Number of workers"
+  default     = 1
+}
+
+variable "controller_type" {
+  type        = string
+  description = "Droplet type for controllers (e.g. s-2vcpu-2gb, s-2vcpu-4gb, s-4vcpu-8gb)."
+  default     = "s-2vcpu-2gb"
+}
+
+variable "worker_type" {
+  type        = string
+  description = "Droplet type for workers (e.g. s-1vcpu-2gb, s-2vcpu-2gb)"
+  default     = "s-1vcpu-2gb"
+}
+
+variable "os_image" {
+  type        = string
+  description = "Fedora CoreOS image for instances"
+}
+
+variable "controller_snippets" {
+  type        = list(string)
+  description = "Controller Fedora CoreOS Config snippets"
+  default     = []
+}
+
+variable "worker_snippets" {
+  type        = list(string)
+  description = "Worker Fedora CoreOS Config snippets"
+  default     = []
+}
+
+# configuration
+
+variable "ssh_fingerprints" {
+  type        = list(string)
+  description = "SSH public key fingerprints. (e.g. see `ssh-add -l -E md5`)"
+}
+
+variable "networking" {
+  type        = string
+  description = "Choice of networking provider (flannel or calico)"
+  default     = "calico"
+}
+
+variable "pod_cidr" {
+  type        = string
+  description = "CIDR IPv4 range to assign Kubernetes pods"
+  default     = "10.2.0.0/16"
+}
+
+variable "service_cidr" {
+  type        = string
+  description = <<EOD
+CIDR IPv4 range to assign Kubernetes services.
+The 1st IP will be reserved for kube_apiserver, the 10th IP will be reserved for coredns.
+EOD
+  default     = "10.3.0.0/16"
+}
+
+variable "enable_reporting" {
+  type        = bool
+  description = "Enable usage or analytics reporting to upstreams (Calico)"
+  default     = false
+}
+
+variable "enable_aggregation" {
+  type        = bool
+  description = "Enable the Kubernetes Aggregation Layer (defaults to false)"
+  default     = false
+}
+
+# unofficial, undocumented, unsupported
+
+variable "asset_dir" {
+  type        = string
+  description = "Absolute path to a directory where generated assets should be placed (contains secrets)"
+  default     = ""
+}
+
+variable "cluster_domain_suffix" {
+  type        = string
+  description = "Queries for domains with the suffix will be answered by coredns. Default is cluster.local (e.g. foo.default.svc.cluster.local) "
+  default     = "cluster.local"
+}
+

digital-ocean/fedora-coreos/kubernetes/versions.tf

@@ -0,0 +1,12 @@
+# Terraform version and plugin versions
+
+terraform {
+  required_version = "~> 0.12.6"
+  required_providers {
+    digitalocean = "~> 1.3"
+    ct           = "~> 0.3"
+    template     = "~> 2.1"
+    null         = "~> 2.1"
+  }
+}
+

digital-ocean/fedora-coreos/kubernetes/workers.tf

@@ -0,0 +1,77 @@
+# Worker DNS records
+resource "digitalocean_record" "workers-record-a" {
+  count = var.worker_count
+
+  # DNS zone where record should be created
+  domain = var.dns_zone
+
+  name  = "${var.cluster_name}-workers"
+  type  = "A"
+  ttl   = 300
+  value = digitalocean_droplet.workers.*.ipv4_address[count.index]
+}
+
+/*
+# TODO: Only official DigitalOcean images support IPv6
+resource "digitalocean_record" "workers-record-aaaa" {
+  count = var.worker_count
+
+  # DNS zone where record should be created
+  domain = var.dns_zone
+
+  name  = "${var.cluster_name}-workers"
+  type  = "AAAA"
+  ttl   = 300
+  value = digitalocean_droplet.workers.*.ipv6_address[count.index]
+}
+*/
+
+# Worker droplet instances
+resource "digitalocean_droplet" "workers" {
+  count = var.worker_count
+
+  name   = "${var.cluster_name}-worker-${count.index}"
+  region = var.region
+
+  image = var.os_image
+  size  = var.worker_type
+
+  # network
+  # TODO: Only official DigitalOcean images support IPv6
+  ipv6               = false
+  private_networking = true
+
+  user_data = data.ct_config.worker-ignition.rendered
+  ssh_keys  = var.ssh_fingerprints
+
+  tags = [
+    digitalocean_tag.workers.id,
+  ]
+
+  lifecycle {
+    create_before_destroy = true
+  }
+}
+
+# Tag to label workers
+resource "digitalocean_tag" "workers" {
+  name = "${var.cluster_name}-worker"
+}
+
+# Worker Ignition config
+data "ct_config" "worker-ignition" {
+  content      = data.template_file.worker-config.rendered
+  strict       = true
+  snippets     = var.worker_snippets
+}
+
+# Worker Fedora CoreOS config
+data "template_file" "worker-config" {
+  template = file("${path.module}/fcc/worker.yaml")
+
+  vars = {
+    cluster_dns_service_ip = cidrhost(var.service_cidr, 10)
+    cluster_domain_suffix  = var.cluster_domain_suffix
+  }
+}
+

docs/advanced/customization.md

@@ -8,24 +8,88 @@ Typhoon modules accept Terraform input variables for customizing clusters in mer
 
 ## Addons
 
-Clusters are kept to a minimal Kubernetes control plane by offering components like Nginx Ingress Controller, Prometheus, Grafana, and Heapster as optional post-install [addons](https://github.com/poseidon/typhoon/tree/master/addons). Customize addons by modifying a copy of our addon manifests.
+Clusters are kept to a minimal Kubernetes control plane by offering components like Nginx Ingress Controller, Prometheus, and Grafana as optional post-install [addons](https://github.com/poseidon/typhoon/tree/master/addons). Customize addons by modifying a copy of our addon manifests.
 
 ## Hosts
 
-### Container Linux
+Typhoon uses the [Ignition](https://github.com/coreos/ignition) system of Fedora CoreOS and Flatcar Linux to immutably declare a system via first-boot disk provisioning. Fedora CoreOS uses a [Fedora CoreOS Config](https://docs.fedoraproject.org/en-US/fedora-coreos/fcct-config/) (FCC) and Flatcar Linux uses a [Container Linux Config](https://github.com/coreos/container-linux-config-transpiler/blob/master/doc/examples.md) (CLC). These define disk partitions, filesystems, systemd units, dropins, config files, mount units, raid arrays, and users.
+
+Controller and worker instances form a minimal and secure Kubernetes cluster on each platform. Typhoon provides the **snippets** feature to accept Fedora CoreOS Configs or Container Linux Configs to validate and additively merge into instance declarations. This allows advanced host customization and experimentation.
+
+!!! note
+    Snippets cannot be used to modify an already existing instance, the antithesis of immutable provisioning. Ignition fully declares a system on first boot only.
 
 !!! danger
-    Container Linux Configs provide powerful host customization abilities. You are responsible for the additional configs defined for hosts.
+    Snippets provide the powerful host customization abilities of Ignition. You are responsible for additional units, configs, files, and conflicts.
 
-Container Linux Configs (CLCs) declare how a Container Linux instance's disk should be provisioned on first boot from disk. CLCs define disk partitions, filesystems, files, systemd units, dropins, networkd configs, mount units, raid arrays, and users. Typhoon creates controller and worker instances with base Container Linux Configs to create a minimal, secure Kubernetes cluster on each platform.
+!!! danger
+    Edits to snippets for controller instances can (correctly) cause Terraform to observe a diff (if not otherwise suppressed) and propose destroying and recreating controller(s). Recognize that this is destructive since controllers run etcd and are stateful. See [blue/green](/topics/maintenance/#upgrades) clusters.
 
-Typhoon AWS, Azure, bare-metal, DigitalOcean, and Google Cloud support CLC *snippets* - valid Container Linux Configs that are validated and additively merged into the Typhoon base config during `terraform plan`. This allows advanced host customizations and experimentation.
+### Fedora CoreOS
 
-#### Examples
+!!! note
+    Fedora CoreOS snippets require `terraform-provider-ct` v0.5+
 
-Container Linux [docs](https://coreos.com/os/docs/latest/clc-examples.html) show many simple config examples. Ensure a file `/opt/hello` is created with permissions 0644. 
+Define a Fedora CoreOS Config (FCC) ([docs](https://docs.fedoraproject.org/en-US/fedora-coreos/fcct-config/), [config](https://github.com/coreos/fcct/blob/master/docs/configuration-v1_0.md), [examples](https://github.com/coreos/fcct/blob/master/docs/examples.md)) in version control near your Terraform workspace directory (e.g. perhaps in a `snippets` subdirectory). You may organize snippets into multiple files, if desired.
 
+For example, ensure an `/opt/hello` file is created with permissions 0644.
+
+```yaml
+# custom-files
+variant: fcos
+version: 1.0.0
+storage:
+  files:
+    - path: /opt/hello
+      contents:
+        inline: |
+          Hello World
+      mode: 0644
 ```
+
+Reference the FCC contents by location (e.g. `file("./custom-units.yaml")`). On [AWS](/fedora-coreos/aws/#cluster) or [Google Cloud](/fedora-coreos/google-cloud/#cluster) extend the `controller_snippets` or `worker_snippets` list variables.
+
+```tf
+module "nemo" {
+  ...
+
+  controller_count        = 1
+  worker_count            = 2
+  controller_snippets = [
+    file("./custom-files"),
+    file("./custom-units"),
+  ]
+  worker_snippets = [
+    file("./custom-files"),
+    file("./custom-units")",
+  ]
+  ...
+}
+```
+
+On [Bare-Metal](/fedora-coreos/bare-metal/#cluster), different FCCs may be used for each node (since hardware may be heterogeneous). Extend the `snippets` map variable by mapping a controller or worker name key to a list of snippets.
+
+```tf
+module "mercury" {
+  ...
+  snippets = {
+    "node2" = [file("./units/hello.yaml")]
+    "node3" = [
+      file("./units/world.yaml"),
+      file("./units/hello.yaml"),
+    ]
+  }
+  ...
+}
+```
+
+### Container Linux
+
+Define a Container Linux Config (CLC) ([config](https://github.com/coreos/container-linux-config-transpiler/blob/master/doc/configuration.md), [examples](https://github.com/coreos/container-linux-config-transpiler/blob/master/doc/examples.md)) in version control near your Terraform workspace directory (e.g. perhaps in a `snippets` subdirectory). You may organize snippets into multiple files, if desired.
+
+For example, ensure an `/opt/hello` file is created with permissions 0644.
+
+```yaml
 # custom-files
 storage:
   files:
@@ -37,9 +101,9 @@ storage:
       mode: 0644
 ```
 
-Ensure a systemd unit `hello.service` is created and a dropin `50-etcd-cluster.conf` is added for `etcd-member.service`.
+Or ensure a systemd unit `hello.service` is created and a dropin `50-etcd-cluster.conf` is added for `etcd-member.service`.
 
-```
+```yaml
 # custom-units
 systemd:
   units:
@@ -61,27 +125,19 @@ systemd:
             Environment="ETCD_LOG_PACKAGE_LEVELS=etcdserver=WARNING,security=DEBUG"
 ```
 
-#### Specification
+Reference the CLC contents by location (e.g. `file("./custom-units.yaml")`). On [AWS](/cl/aws/#cluster), [Azure](/cl/azure/#cluster), [DigitalOcean](/cl/digital-ocean/#cluster), or [Google Cloud](/cl/google-cloud/#cluster) extend the `controller_snippets` or `worker_snippets` list variables.
 
-View the Container Linux Config [format](https://coreos.com/os/docs/1576.4.0/configuration.html) to read about each field.
-
-#### Usage
-
-Write Container Linux Configs *snippets* as files in the repository where you keep Terraform configs for clusters (perhaps in a `clc` or `snippets` subdirectory). You may organize snippets in multiple files as desired, provided they are each valid.
-
-[AWS](/cl/aws/#cluster), [Azure](/cl/azure/#cluster), [DigitalOcean](/cl/digital-ocean/#cluster), and [Google Cloud](/cl/google-cloud/#cluster) clusters allow populating a list of `controller_clc_snippets` or `worker_clc_snippets`.
-
-```
+```tf
 module "nemo" {
   ...
 
   controller_count        = 1
   worker_count            = 2
-  controller_clc_snippets = [
+  controller_snippets = [
     file("./custom-files"),
     file("./custom-units"),
   ]
-  worker_clc_snippets = [
+  worker_snippets = [
     file("./custom-files"),
     file("./custom-units")",
   ]
@@ -89,17 +145,12 @@ module "nemo" {
 }
 ```
 
-[Bare-Metal](/cl/bare-metal/#cluster) clusters allow different Container Linux snippets to be used for each node (since hardware may be heterogeneous). Populate the optional `clc_snippets` map variable with any controller or worker name keys and lists of snippets.
+On [Bare-Metal](/cl/bare-metal/#cluster), different CLCs may be used for each node (since hardware may be heterogeneous). Extend the `snippets` map variable by mapping a controller or worker name key to a list of snippets.
 
-```
+```tf
 module "mercury" {
   ...
-  controller_names = ["node1"]
-  worker_names = [
-    "node2",
-    "node3",
-  ]
-  clc_snippets = {
+  snippets = {
     "node2" = [file("./units/hello.yaml")]
     "node3" = [
       file("./units/world.yaml"),
@@ -110,32 +161,6 @@ module "mercury" {
 }
 ```
 
-Plan the resources to be created.
-
-```
-$ terraform plan
-Plan: 54 to add, 0 to change, 0 to destroy.
-```
-
-Most syntax errors in CLCs can be caught during planning. For example, mangle the indentation in one of the CLC files:
-
-```
-$ terraform plan
-...
-error parsing Container Linux Config: error: yaml: line 3: did not find expected '-' indicator
-```
-
-Undo the mangle. Apply the changes to create the cluster per the tutorial.
-
-```
-$ terraform apply
-```
-
-Container Linux Configs (and the CoreOS Ignition system) create immutable infrastructure. Disk provisioning is performed only on first boot from disk. That means if you change a snippet used by an instance, Terraform will (correctly) try to destroy and recreate that instance. Be careful!
-
-!!! danger
-    Destroying and recreating controller instances is destructive! etcd runs on controller instances and stores data there. Do not modify controller snippets. See [blue/green](/topics/maintenance/#upgrades) clusters.
-
 ## Architecture
 
 Typhoon chooses variables to expose with purpose. If you must customize clusters in ways that aren't supported by input variables, fork Typhoon and maintain a repository with customizations. Reference the repository by changing the username.

docs/advanced/worker-pools.md

@@ -67,7 +67,7 @@ The AWS internal `workers` module supports a number of [variables](https://githu
 | disk_type | Type of the EBS volume | "gp2" | standard, gp2, io1 |
 | disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
 | spot_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0 | 0.10 |
-| clc_snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
+| snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
 | service_cidr | Must match `service_cidr` of cluster | "10.3.0.0/16" | "10.3.0.0/24" |
 | node_labels | List of initial node labels | [] | ["worker-pool=foo"] |
 
@@ -79,7 +79,7 @@ Create a cluster following the Azure [tutorial](../cl/azure.md#cluster). Define
 
 ```tf
 module "ramius-worker-pool" {
-  source = "git::https://github.com/poseidon/typhoon//azure/container-linux/kubernetes/workers?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//azure/container-linux/kubernetes/workers?ref=v1.18.1"
   
   # Azure
   region                  = module.ramius.region
@@ -133,7 +133,7 @@ The Azure internal `workers` module supports a number of [variables](https://git
 | vm_type | Machine type for instances | "Standard_DS1_v2" | See below |
 | os_image | Channel for a Container Linux derivative | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha |
 | priority | Set priority to Low to use reduced cost surplus capacity, with the tradeoff that instances can be deallocated at any time | "Regular" | "Low" |
-| clc_snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
+| snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |
 | node_labels | List of initial node labels | [] | ["worker-pool=foo"] |
 
@@ -145,7 +145,7 @@ Create a cluster following the Google Cloud [tutorial](../cl/google-cloud.md#clu
 
 ```tf
 module "yavin-worker-pool" {
-  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes/workers?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes/workers?ref=v1.18.1"
 
   # Google Cloud
   region       = "europe-west2"
@@ -176,11 +176,11 @@ Verify a managed instance group of workers joins the cluster within a few minute
 ```
 $ kubectl get nodes
 NAME                                             STATUS   AGE    VERSION
-yavin-controller-0.c.example-com.internal        Ready    6m     v1.17.4
-yavin-worker-jrbf.c.example-com.internal         Ready    5m     v1.17.4
-yavin-worker-mzdm.c.example-com.internal         Ready    5m     v1.17.4
-yavin-16x-worker-jrbf.c.example-com.internal     Ready    3m     v1.17.4
-yavin-16x-worker-mzdm.c.example-com.internal     Ready    3m     v1.17.4
+yavin-controller-0.c.example-com.internal        Ready    6m     v1.18.1
+yavin-worker-jrbf.c.example-com.internal         Ready    5m     v1.18.1
+yavin-worker-mzdm.c.example-com.internal         Ready    5m     v1.18.1
+yavin-16x-worker-jrbf.c.example-com.internal     Ready    3m     v1.18.1
+yavin-16x-worker-mzdm.c.example-com.internal     Ready    3m     v1.18.1
 ```
 
 ### Variables
@@ -209,7 +209,7 @@ Check the list of regions [docs](https://cloud.google.com/compute/docs/regions-z
 | os_image | Container Linux image for compute instances | "coreos-stable" | "coreos-alpha", "coreos-beta" |
 | disk_size | Size of the disk in GB | 40 | 100 |
 | preemptible | If true, Compute Engine will terminate instances randomly within 24 hours | false | true |
-| clc_snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
+| snippets | Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
 | service_cidr | Must match `service_cidr` of cluster | "10.3.0.0/16" | "10.3.0.0/24" |
 | node_labels | List of initial node labels | [] | ["worker-pool=foo"] |
 

docs/architecture/operating-systems.md

@@ -1,6 +1,6 @@
 # Operating Systems
 
-Typhoon supports [Container Linux](https://coreos.com/why/), [Flatcar Linux](https://www.flatcar-linux.org/) and [Fedora CoreOS](https://getfedora.org/coreos/) (preview). These operating systems were chosen because they offer:
+Typhoon supports [Fedora CoreOS](https://getfedora.org/coreos/), [Flatcar Linux](https://www.flatcar-linux.org/) and Container Linux (EOL in May 2020). These operating systems were chosen because they offer:
 
 * Minimalism and focus on clustered operation
 * Automated and atomic operating system upgrades
@@ -9,16 +9,18 @@ Typhoon supports [Container Linux](https://coreos.com/why/), [Flatcar Linux](htt
 
 Together, they diversify Typhoon to support a range of container technologies.
 
-* Container Linux: Gentoo core, rkt-fly, docker
 * Fedora CoreOS: rpm-ostree, podman, moby
+* Flatcar Linux: Gentoo core, rkt-fly, docker
 
 ## Host Properties
 
-| Property          | Container Linux / Flatcar Linux | Fedora CoreOS |
+| Property          | Flatcar Linux | Fedora CoreOS |
 |-------------------|---------------------------------|---------------|
+| Kernel            | ~4.19.x | ~5.5.x |
+| systemd           | 241 | 243 |
 | Ignition system   | Ignition v2.x spec | Ignition v3.x spec |
-| Container Engine  | docker    | docker |
-| storage driver    | overlay2  | overlay2 |
+| Container Engine  | docker 18.06.3-ce  | docker 18.09.8 |
+| storage driver    | overlay2 (extfs)  | overlay2 (xfs) |
 | logging driver    | json-file | journald |
 | cgroup driver     | cgroupfs (except Flatcar edge) | systemd  |
 | Networking        | systemd-networkd | NetworkManager |
@@ -26,13 +28,13 @@ Together, they diversify Typhoon to support a range of container technologies.
 
 ## Kubernetes Properties
 
-| Property          | Container Linux | Fedora CoreOS |
+| Property          | Flatcar Linux | Fedora CoreOS |
 |-------------------|-----------------|---------------|
 | single-master     | all platforms | all platforms |
 | multi-master      | all platforms | all platforms |
 | control plane     | static pods   | static pods   |
-| kubelet image     | upstream hyperkube | upstream hyperkube |
-| control plane images | upstream hyperkube | upstream hyperkube |
+| kubelet image     | kubelet [image](https://github.com/poseidon/kubelet) with upstream binary | kubelet [image](https://github.com/poseidon/kubelet) with upstream binary |
+| control plane images | upstream images | upstream images |
 | on-host etcd      | rkt-fly   | podman |
 | on-host kubelet   | rkt-fly   | podman |
 | CNI plugins       | calico or flannel | calico or flannel |

docs/cl/aws.md

@@ -1,6 +1,6 @@
 # AWS
 
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on AWS with CoreOS Container Linux or Flatcar Linux.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on AWS with CoreOS Container Linux or Flatcar Linux.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create a VPC, gateway, subnets, security groups, controller instances, worker auto-scaling group, network load balancer, and TLS assets.
 
@@ -24,9 +24,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -55,7 +55,7 @@ provider "aws" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -70,7 +70,7 @@ Define a Kubernetes cluster using the module `aws/container-linux/kubernetes`.
 
 ```tf
 module "tempest" {
-  source = "git::https://github.com/poseidon/typhoon//aws/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//aws/container-linux/kubernetes?ref=v1.18.1"
 
   # AWS
   cluster_name = "tempest"
@@ -143,9 +143,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/tempest-config
 $ kubectl get nodes
 NAME           STATUS  ROLES   AGE  VERSION
-ip-10-0-3-155  Ready   <none>  10m  v1.17.4
-ip-10-0-26-65  Ready   <none>  10m  v1.17.4
-ip-10-0-41-21  Ready   <none>  10m  v1.17.4
+ip-10-0-3-155  Ready   <none>  10m  v1.18.1
+ip-10-0-26-65  Ready   <none>  10m  v1.18.1
+ip-10-0-41-21  Ready   <none>  10m  v1.18.1
 ```
 
 List the pods.
@@ -204,7 +204,6 @@ Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/tempest" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 1 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | EC2 instance type for controllers | "t3.small" | See below |
@@ -215,8 +214,8 @@ Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
 | disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
 | worker_target_groups | Target group ARNs to which worker instances should be added | [] | [aws_lb_target_group.app.id] |
 | worker_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0/null | 0.10 |
-| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
-| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| worker_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | network_mtu | CNI interface MTU (calico only) | 1480 | 8981 |
 | host_cidr | CIDR IPv4 range to assign to EC2 instances | "10.0.0.0/16" | "10.1.0.0/16" |

docs/cl/azure.md

@@ -3,7 +3,7 @@
 !!! danger
     Typhoon for Azure is alpha. For production, use AWS, Google Cloud, or bare-metal. As Azure matures, check [errata](https://github.com/poseidon/typhoon/wiki/Errata) for known shortcomings.
 
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on Azure with CoreOS Container Linux or Flatcar Linux.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on Azure with CoreOS Container Linux or Flatcar Linux.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create a resource group, virtual network, subnets, security groups, controller availability set, worker scale set, load balancer, and TLS assets.
 
@@ -27,9 +27,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -54,7 +54,7 @@ provider "azurerm" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -66,7 +66,7 @@ Define a Kubernetes cluster using the module `azure/container-linux/kubernetes`.
 
 ```tf
 module "ramius" {
-  source = "git::https://github.com/poseidon/typhoon//azure/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//azure/container-linux/kubernetes?ref=v1.18.1"
 
   # Azure
   cluster_name   = "ramius"
@@ -149,9 +149,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/ramius-config
 $ kubectl get nodes
 NAME                  STATUS  ROLES   AGE  VERSION
-ramius-controller-0   Ready   <none>  24m  v1.17.4
-ramius-worker-000001  Ready   <none>  25m  v1.17.4
-ramius-worker-000002  Ready   <none>  24m  v1.17.4
+ramius-controller-0   Ready   <none>  24m  v1.18.1
+ramius-worker-000001  Ready   <none>  25m  v1.18.1
+ramius-worker-000002  Ready   <none>  24m  v1.18.1
 ```
 
 List the pods.
@@ -224,7 +224,6 @@ Reference the DNS zone with `azurerm_dns_zone.clusters.name` and its resource gr
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/ramius" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 1 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | Machine type for controllers | "Standard_B2s" | See below |
@@ -232,8 +231,8 @@ Reference the DNS zone with `azurerm_dns_zone.clusters.name` and its resource gr
 | os_image | Channel for a Container Linux derivative | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha, flatcar-stable, flatcar-beta |
 | disk_size | Size of the disk in GB | 40 | 100 |
 | worker_priority | Set priority to Spot to use reduced cost surplus capacity, with the tradeoff that instances can be deallocated at any time | Regular | Spot |
-| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
-| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
+| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
+| worker_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/#usage) |
 | networking | Choice of networking provider | "calico" | "flannel" or "calico" |
 | host_cidr | CIDR IPv4 range to assign to instances | "10.0.0.0/16" | "10.0.0.0/20" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |

docs/cl/bare-metal.md

@@ -1,6 +1,6 @@
 # Bare-Metal
 
-In this tutorial, we'll network boot and provision a Kubernetes v1.17.4 cluster on bare-metal with CoreOS Container Linux or Flatcar Linux.
+In this tutorial, we'll network boot and provision a Kubernetes v1.18.1 cluster on bare-metal with CoreOS Container Linux or Flatcar Linux.
 
 First, we'll deploy a [Matchbox](https://github.com/poseidon/matchbox) service and setup a network boot environment. Then, we'll declare a Kubernetes cluster using the Typhoon Terraform module and power on machines. On PXE boot, machines will install Container Linux to disk, reboot into the disk install, and provision themselves as Kubernetes controllers or workers via Ignition.
 
@@ -125,9 +125,9 @@ mv terraform-provider-matchbox-v0.3.0-linux-amd64/terraform-provider-matchbox ~/
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -150,7 +150,7 @@ provider "matchbox" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -160,7 +160,7 @@ Define a Kubernetes cluster using the module `bare-metal/container-linux/kuberne
 
 ```tf
 module "mercury" {
-  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=v1.18.1"
 
   # bare-metal
   cluster_name            = "mercury"
@@ -299,9 +299,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/mercury-config
 $ kubectl get nodes
 NAME                STATUS  ROLES   AGE  VERSION
-node1.example.com   Ready   <none>  10m  v1.17.4
-node2.example.com   Ready   <none>  10m  v1.17.4
-node3.example.com   Ready   <none>  10m  v1.17.4
+node1.example.com   Ready   <none>  10m  v1.18.1
+node2.example.com   Ready   <none>  10m  v1.18.1
+node3.example.com   Ready   <none>  10m  v1.18.1
 ```
 
 List the pods.
@@ -347,13 +347,12 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/bare-me
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/mercury" |
 | download_protocol | Protocol iPXE uses to download the kernel and initrd. iPXE must be compiled with [crypto](https://ipxe.org/crypto) support for https. Unused if cached_install is true | "https" | "http" |
 | cached_install | PXE boot and install from the Matchbox `/assets` cache. Admin MUST have downloaded Container Linux or Flatcar images into the cache | false | true |
 | install_disk | Disk device where Container Linux should be installed | "/dev/sda" | "/dev/sdb" |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | network_mtu | CNI interface MTU (calico-only) | 1480 | - |
-| clc_snippets | Map from machine names to lists of Container Linux Config snippets | {} | [example](/advanced/customization/#usage) |
+| snippets | Map from machine names to lists of Container Linux Config snippets | {} | [examples](/advanced/customization/) |
 | network_ip_autodetection_method | Method to detect host IPv4 address (calico-only) | "first-found" | "can-reach=10.0.0.1" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |

docs/cl/digital-ocean.md

@@ -1,6 +1,6 @@
 # Digital Ocean
 
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on DigitalOcean with CoreOS Container Linux or Flatcar Linux.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on DigitalOcean with CoreOS Container Linux or Flatcar Linux.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create controller droplets, worker droplets, DNS records, tags, and TLS assets.
 
@@ -24,9 +24,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -50,12 +50,12 @@ Configure the DigitalOcean provider to use your token in a `providers.tf` file.
 
 ```tf
 provider "digitalocean" {
-  version = "1.14.0"
+  version = "1.15.1"
   token = "${chomp(file("~/.config/digital-ocean/token"))}"
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -65,13 +65,13 @@ Define a Kubernetes cluster using the module `digital-ocean/container-linux/kube
 
 ```tf
 module "nemo" {
-  source = "git::https://github.com/poseidon/typhoon//digital-ocean/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//digital-ocean/container-linux/kubernetes?ref=v1.18.1"
 
   # Digital Ocean
   cluster_name = "nemo"
   region       = "nyc3"
   dns_zone     = "digital-ocean.example.com"
-  image        = "coreos-stable"
+  os_image     = "coreos-stable"
 
   # configuration
   ssh_fingerprints = ["d7:9d:79:ae:56:32:73:79:95:88:e3:a2:ab:5d:45:e7"]
@@ -95,7 +95,7 @@ Flatcar Linux publishes DigitalOcean images, but does not upload them. DigitalOc
 ```tf
 module "nemo" {
   ...
-  image = data.digitalocean_image.flatcar-stable.id
+  os_image = data.digitalocean_image.flatcar-stable.id
 }
 
 data "digitalocean_image" "flatcar-stable" {
@@ -103,7 +103,7 @@ data "digitalocean_image" "flatcar-stable" {
 }
 ```
 
-Set the [image](#variables) to the custom image id.
+Set the [os_image](#variables) to the custom image id.
 
 ## ssh-agent
 
@@ -161,9 +161,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/nemo-config
 $ kubectl get nodes
 NAME               STATUS  ROLES   AGE  VERSION
-10.132.110.130     Ready   <none>  10m  v1.17.4
-10.132.115.81      Ready   <none>  10m  v1.17.4
-10.132.124.107     Ready   <none>  10m  v1.17.4
+10.132.110.130     Ready   <none>  10m  v1.18.1
+10.132.115.81      Ready   <none>  10m  v1.18.1
+10.132.124.107     Ready   <none>  10m  v1.18.1
 ```
 
 List the pods.
@@ -204,7 +204,7 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/digital
 
 Clusters create DNS A records `${cluster_name}.${dns_zone}` to resolve to controller droplets (round robin). This FQDN is used by workers and `kubectl` to access the apiserver(s). In this example, the cluster's apiserver would be accessible at `nemo.do.example.com`.
 
-You'll need a registered domain name or delegated subdomain in Digital Ocean Domains (i.e. DNS zones). You can set this up once and create many clusters with unique names.
+You'll need a registered domain name or delegated subdomain in DigitalOcean Domains (i.e. DNS zones). You can set this up once and create many clusters with unique names.
 
 ```tf
 # Declare a DigitalOcean record to also create a zone file
@@ -239,14 +239,13 @@ Digital Ocean requires the SSH public key be uploaded to your account, so you ma
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/nemo" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 1 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | Droplet type for controllers | "s-2vcpu-2gb" | s-2vcpu-2gb, s-2vcpu-4gb, s-4vcpu-8gb, ... |
 | worker_type | Droplet type for workers | "s-1vcpu-2gb" | s-1vcpu-2gb, s-2vcpu-2gb, ... |
-| image | Container Linux image for instances | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha, "custom-image-id" |
-| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
-| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| os_image | Container Linux image for instances | "coreos-stable" | coreos-stable, coreos-beta, coreos-alpha, "custom-image-id" |
+| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| worker_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
 | networking | Choice of networking provider | "calico" | "flannel" or "calico" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |

docs/cl/google-cloud.md

@@ -1,6 +1,6 @@
 # Google Cloud
 
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on Google Compute Engine with CoreOS Container Linux or Flatcar Linux.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on Google Compute Engine with CoreOS Container Linux or Flatcar Linux.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create a network, firewall rules, health checks, controller instances, worker managed instance group, load balancers, and TLS assets.
 
@@ -24,9 +24,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -56,7 +56,7 @@ provider "google" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -71,7 +71,7 @@ Define a Kubernetes cluster using the module `google-cloud/container-linux/kuber
 
 ```tf
 module "yavin" {
-  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.18.1"
 
   # Google Cloud
   cluster_name  = "yavin"
@@ -167,9 +167,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/yavin-config
 $ kubectl get nodes
 NAME                                       ROLES    STATUS  AGE  VERSION
-yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.17.4
-yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.17.4
-yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.17.4
+yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.18.1
+yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.18.1
+yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.18.1
 ```
 
 List the pods.
@@ -231,7 +231,6 @@ resource "google_dns_managed_zone" "zone-for-clusters" {
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/yavin" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 3 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | Machine type for controllers | "n1-standard-1" | See below |
@@ -239,8 +238,8 @@ resource "google_dns_managed_zone" "zone-for-clusters" {
 | os_image | Container Linux image for compute instances | "coreos-stable" | "flatcar-linux-2303-4-0" |
 | disk_size | Size of the disk in GB | 40 | 100 |
 | worker_preemptible | If enabled, Compute Engine will terminate workers randomly within 24 hours | false | true |
-| controller_clc_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
-| worker_clc_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| controller_snippets | Controller Container Linux Config snippets | [] | [example](/advanced/customization/) |
+| worker_snippets | Worker Container Linux Config snippets | [] | [example](/advanced/customization/) |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |

docs/fedora-coreos/aws.md

@@ -1,6 +1,6 @@
 # AWS
 
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on AWS with Fedora CoreOS.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on AWS with Fedora CoreOS.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create a VPC, gateway, subnets, security groups, controller instances, worker auto-scaling group, network load balancer, and TLS assets.
 
@@ -24,9 +24,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -55,7 +55,7 @@ provider "aws" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -70,7 +70,7 @@ Define a Kubernetes cluster using the module `aws/fedora-coreos/kubernetes`.
 
 ```tf
 module "tempest" {
-  source = "git::https://github.com/poseidon/typhoon//aws/fedora-coreos/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//aws/fedora-coreos/kubernetes?ref=v1.18.1"
 
   # AWS
   cluster_name = "tempest"
@@ -143,9 +143,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/tempest-config
 $ kubectl get nodes
 NAME           STATUS  ROLES    AGE  VERSION
-ip-10-0-3-155  Ready   <none>   10m  v1.17.4
-ip-10-0-26-65  Ready   <none>   10m  v1.17.4
-ip-10-0-41-21  Ready   <none>   10m  v1.17.4
+ip-10-0-3-155  Ready   <none>   10m  v1.18.1
+ip-10-0-26-65  Ready   <none>   10m  v1.18.1
+ip-10-0-41-21  Ready   <none>   10m  v1.18.1
 ```
 
 List the pods.
@@ -204,7 +204,6 @@ Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/tempest" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 1 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | EC2 instance type for controllers | "t3.small" | See below |
@@ -215,8 +214,8 @@ Reference the DNS zone id with `aws_route53_zone.zone-for-clusters.zone_id`.
 | disk_iops | IOPS of the EBS volume | 0 (i.e. auto) | 400 |
 | worker_target_groups | Target group ARNs to which worker instances should be added | [] | [aws_lb_target_group.app.id] |
 | worker_price | Spot price in USD for worker instances or 0 to use on-demand instances | 0 | 0.10 |
-| controller_snippets | Controller Fedora CoreOS Config snippets | [] | UNSUPPORTED |
-| worker_clc_snippets | Worker Fedora CoreOS Config snippets | [] | UNSUPPORTED |
+| controller_snippets | Controller Fedora CoreOS Config snippets | [] | [examples](/advanced/customization/) |
+| worker_snippets | Worker Fedora CoreOS Config snippets | [] | [examples](/advanced/customization/) |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | network_mtu | CNI interface MTU (calico only) | 1480 | 8981 |
 | host_cidr | CIDR IPv4 range to assign to EC2 instances | "10.0.0.0/16" | "10.1.0.0/16" |

docs/fedora-coreos/bare-metal.md

@@ -1,6 +1,6 @@
 # Bare-Metal
 
-In this tutorial, we'll network boot and provision a Kubernetes v1.17.4 cluster on bare-metal with Fedora CoreOS.
+In this tutorial, we'll network boot and provision a Kubernetes v1.18.1 cluster on bare-metal with Fedora CoreOS.
 
 First, we'll deploy a [Matchbox](https://github.com/poseidon/matchbox) service and setup a network boot environment. Then, we'll declare a Kubernetes cluster using the Typhoon Terraform module and power on machines. On PXE boot, machines will install Fedora CoreOS to disk, reboot into the disk install, and provision themselves as Kubernetes controllers or workers via Ignition.
 
@@ -125,9 +125,9 @@ mv terraform-provider-matchbox-v0.3.0-linux-amd64/terraform-provider-matchbox ~/
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -150,7 +150,7 @@ provider "matchbox" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -160,7 +160,7 @@ Define a Kubernetes cluster using the module `bare-metal/fedora-coreos/kubernete
 
 ```tf
 module "mercury" {
-  source = "git::https://github.com/poseidon/typhoon//bare-metal/fedora-coreos/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//bare-metal/fedora-coreos/kubernetes?ref=v1.18.1"
 
   # bare-metal
   cluster_name            = "mercury"
@@ -289,9 +289,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/mercury-config
 $ kubectl get nodes
 NAME                STATUS  ROLES   AGE  VERSION
-node1.example.com   Ready   <none>  10m  v1.17.4
-node2.example.com   Ready   <none>  10m  v1.17.4
-node3.example.com   Ready   <none>  10m  v1.17.4
+node1.example.com   Ready   <none>  10m  v1.18.1
+node2.example.com   Ready   <none>  10m  v1.18.1
+node3.example.com   Ready   <none>  10m  v1.18.1
 ```
 
 List the pods.
@@ -337,12 +337,11 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/bare-me
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/mercury" |
 | cached_install | PXE boot and install from the Matchbox `/assets` cache. Admin MUST have downloaded Fedora CoreOS images into the cache | false | true |
 | install_disk | Disk device where Fedora CoreOS should be installed | "sda" (not "/dev/sda" like Container Linux) | "sdb" |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | network_mtu | CNI interface MTU (calico-only) | 1480 | - |
-| snippets | Map from machine names to lists of Fedora CoreOS Config snippets | {} | UNSUPPORTED |
+| snippets | Map from machine names to lists of Fedora CoreOS Config snippets | {} | [examples](/advanced/customization/) |
 | network_ip_autodetection_method | Method to detect host IPv4 address (calico-only) | "first-found" | "can-reach=10.0.0.1" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |

docs/fedora-coreos/digitalocean.md

@@ -0,0 +1,247 @@
+# Digital Ocean
+
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on DigitalOcean with Fedora CoreOS.
+
+We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create controller droplets, worker droplets, DNS records, tags, and TLS assets.
+
+Controller hosts are provisioned to run an `etcd-member` peer and a `kubelet` service. Worker hosts run a `kubelet` service. Controller nodes run `kube-apiserver`, `kube-scheduler`, `kube-controller-manager`, and `coredns`, while `kube-proxy` and `calico` (or `flannel`) run on every node. A generated `kubeconfig` provides `kubectl` access to the cluster.
+
+## Requirements
+
+* Digital Ocean Account and Token
+* Digital Ocean Domain (registered Domain Name or delegated subdomain)
+* Terraform v0.12.6+ and [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) installed locally
+
+## Terraform Setup
+
+Install [Terraform](https://www.terraform.io/downloads.html) v0.12.6+ on your system.
+
+```sh
+$ terraform version
+Terraform v0.12.21
+```
+
+Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
+
+```sh
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
+```
+
+Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
+
+```
+cd infra/clusters
+```
+
+## Provider
+
+Login to [DigitalOcean](https://cloud.digitalocean.com) or create an [account](https://cloud.digitalocean.com/registrations/new), if you don't have one.
+
+Generate a Personal Access Token with read/write scope from the [API tab](https://cloud.digitalocean.com/settings/api/tokens). Write the token to a file that can be referenced in configs.
+
+```sh
+mkdir -p ~/.config/digital-ocean
+echo "TOKEN" > ~/.config/digital-ocean/token
+```
+
+Configure the DigitalOcean provider to use your token in a `providers.tf` file.
+
+```tf
+provider "digitalocean" {
+  version = "1.15.1"
+  token = "${chomp(file("~/.config/digital-ocean/token"))}"
+}
+
+provider "ct" {
+  version = "0.5.0"
+}
+```
+
+## Fedora CoreOS Images
+
+Fedora CoreOS publishes images for DigitalOcean, but does not yet upload them. DigitalOcean allows [custom images](https://blog.digitalocean.com/custom-images/) to be uploaded via URL or file.
+
+Import a [Fedora CoreOS](https://getfedora.org/en/coreos/download?tab=cloud_operators&stream=stable) image via URL to desired a region(s). Reference the DigitalOcean image and set the `os_image` in the next step.
+
+```tf
+data "digitalocean_image" "fedora-coreos-31-20200323-3-2" {
+  name = "fedora-coreos-31.20200323.3.2-digitalocean.x86_64.qcow2.gz"
+}
+```
+
+## Cluster
+
+Define a Kubernetes cluster using the module `digital-ocean/fedora-coreos/kubernetes`.
+
+```tf
+module "nemo" {
+  source = "git::https://github.com/poseidon/typhoon//digital-ocean/fedora-coreos/kubernetes?ref=v1.18.1"
+
+  # Digital Ocean
+  cluster_name = "nemo"
+  region       = "nyc3"
+  dns_zone     = "digital-ocean.example.com"
+  os_image     = data.digitalocean_image.fedora-coreos-31-20200323-3-2.id
+
+  # configuration
+  ssh_fingerprints = ["d7:9d:79:ae:56:32:73:79:95:88:e3:a2:ab:5d:45:e7"]
+
+  # optional
+  worker_count = 2
+}
+```
+
+Reference the [variables docs](#variables) or the [variables.tf](https://github.com/poseidon/typhoon/blob/master/digital-ocean/fedora-coreos/kubernetes/variables.tf) source.
+
+## ssh-agent
+
+Initial bootstrapping requires `bootstrap.service` be started on one controller node. Terraform uses `ssh-agent` to automate this step. Add your SSH private key to `ssh-agent`.
+
+```sh
+ssh-add ~/.ssh/id_rsa
+ssh-add -L
+```
+
+## Apply
+
+Initialize the config directory if this is the first use with Terraform.
+
+```sh
+terraform init
+```
+
+Plan the resources to be created.
+
+```sh
+$ terraform plan
+Plan: 54 to add, 0 to change, 0 to destroy.
+```
+
+Apply the changes to create the cluster.
+
+```sh
+$ terraform apply
+module.nemo.null_resource.bootstrap: Still creating... (30s elapsed)
+module.nemo.null_resource.bootstrap: Provisioning with 'remote-exec'...
+...
+module.nemo.null_resource.bootstrap: Still creating... (6m20s elapsed)
+module.nemo.null_resource.bootstrap: Creation complete (ID: 7599298447329218468)
+
+Apply complete! Resources: 42 added, 0 changed, 0 destroyed.
+```
+
+In 3-6 minutes, the Kubernetes cluster will be ready.
+
+## Verify
+
+[Install kubectl](https://kubernetes.io/docs/tasks/tools/install-kubectl/) on your system. Obtain the generated cluster `kubeconfig` from module outputs (e.g. write to a local file).
+
+```
+resource "local_file" "kubeconfig-nemo" {
+  content  = module.nemo.kubeconfig-admin
+  filename = "/home/user/.kube/configs/nemo-config"
+}
+```
+
+List nodes in the cluster.
+
+```
+$ export KUBECONFIG=/home/user/.kube/configs/nemo-config
+$ kubectl get nodes
+NAME               STATUS  ROLES   AGE  VERSION
+10.132.110.130     Ready   <none>  10m  v1.18.1
+10.132.115.81      Ready   <none>  10m  v1.18.1
+10.132.124.107     Ready   <none>  10m  v1.18.1
+```
+
+List the pods.
+
+```
+NAMESPACE     NAME                                       READY     STATUS    RESTARTS   AGE
+kube-system   coredns-1187388186-ld1j7                   1/1       Running   0          11m
+kube-system   coredns-1187388186-rdhf7                   1/1       Running   0          11m
+kube-system   calico-node-1m5bf                          2/2       Running   0          11m
+kube-system   calico-node-7jmr1                          2/2       Running   0          11m
+kube-system   calico-node-bknc8                          2/2       Running   0          11m
+kube-system   kube-apiserver-ip-10.132.115.81            1/1       Running   0          11m
+kube-system   kube-controller-manager-ip-10.132.115.81   1/1       Running   0          11m
+kube-system   kube-proxy-6kxjf                           1/1       Running   0          11m
+kube-system   kube-proxy-fh3td                           1/1       Running   0          11m
+kube-system   kube-proxy-k35rc                           1/1       Running   0          11m
+kube-system   kube-scheduler-ip-10.132.115.81            1/1       Running   0          11m
+```
+
+## Going Further
+
+Learn about [maintenance](/topics/maintenance/) and [addons](/addons/overview/).
+
+## Variables
+
+Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/digital-ocean/fedora-coreos/kubernetes/variables.tf) source.
+
+### Required
+
+| Name | Description | Example |
+|:-----|:------------|:--------|
+| cluster_name | Unique cluster name (prepended to dns_zone) | "nemo" |
+| region | Digital Ocean region | "nyc1", "sfo2", "fra1", tor1" |
+| dns_zone | Digital Ocean domain (i.e. DNS zone) | "do.example.com" |
+| os_image | Fedora CoreOS image for instances | "custom-image-id" |
+| ssh_fingerprints | SSH public key fingerprints | ["d7:9d..."] |
+
+#### DNS Zone
+
+Clusters create DNS A records `${cluster_name}.${dns_zone}` to resolve to controller droplets (round robin). This FQDN is used by workers and `kubectl` to access the apiserver(s). In this example, the cluster's apiserver would be accessible at `nemo.do.example.com`.
+
+You'll need a registered domain name or delegated subdomain in DigitalOcean Domains (i.e. DNS zones). You can set this up once and create many clusters with unique names.
+
+```tf
+# Declare a DigitalOcean record to also create a zone file
+resource "digitalocean_domain" "zone-for-clusters" {
+  name       = "do.example.com"
+  ip_address = "8.8.8.8"
+}
+```
+
+!!! tip ""
+    If you have an existing domain name with a zone file elsewhere, just delegate a subdomain that can be managed on DigitalOcean (e.g. do.mydomain.com) and [update nameservers](https://www.digitalocean.com/community/tutorials/how-to-set-up-a-host-name-with-digitalocean).
+
+#### SSH Fingerprints
+
+DigitalOcean droplets are created with your SSH public key "fingerprint" (i.e. MD5 hash) to allow access. If your SSH public key is at `~/.ssh/id_rsa`, find the fingerprint with,
+
+```bash
+ssh-keygen -E md5 -lf ~/.ssh/id_rsa.pub | awk '{print $2}'
+MD5:d7:9d:79:ae:56:32:73:79:95:88:e3:a2:ab:5d:45:e7
+```
+
+If you use `ssh-agent` (e.g. Yubikey for SSH), find the fingerprint with,
+
+```
+ssh-add -l -E md5
+2048 MD5:d7:9d:79:ae:56:32:73:79:95:88:e3:a2:ab:5d:45:e7 cardno:000603633110 (RSA)
+```
+
+Digital Ocean requires the SSH public key be uploaded to your account, so you may also find the fingerprint under Settings -> Security. Finally, if you don't have an SSH key, [create one now](https://help.github.com/articles/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent/).
+
+### Optional
+
+| Name | Description | Default | Example |
+|:-----|:------------|:--------|:--------|
+| controller_count | Number of controllers (i.e. masters) | 1 | 1 |
+| worker_count | Number of workers | 1 | 3 |
+| controller_type | Droplet type for controllers | "s-2vcpu-2gb" | s-2vcpu-2gb, s-2vcpu-4gb, s-4vcpu-8gb, ... |
+| worker_type | Droplet type for workers | "s-1vcpu-2gb" | s-1vcpu-2gb, s-2vcpu-2gb, ... |
+| controller_snippets | Controller Fedora CoreOS Config snippets | [] | [example](/advanced/customization/) |
+| worker_snippets | Worker Fedora CoreOS Config snippets | [] | [example](/advanced/customization/) |
+| networking | Choice of networking provider | "calico" | "flannel" or "calico" |
+| pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
+| service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |
+
+Check the list of valid [droplet types](https://developers.digitalocean.com/documentation/changelog/api-v2/new-size-slugs-for-droplet-plan-changes/) or use `doctl compute size list`.
+
+!!! warning
+    Do not choose a `controller_type` smaller than 2GB. Smaller droplets are not sufficient for running a controller and bootstrapping will fail.
+

docs/fedora-coreos/google-cloud.md

@@ -1,9 +1,6 @@
 # Google Cloud
 
-!!! danger
-    Typhoon for Fedora CoreOS is an alpha. Please report Fedora CoreOS bugs to [Fedora](https://github.com/coreos/fedora-coreos-tracker/issues) and Typhoon issues to Typhoon.
-
-In this tutorial, we'll create a Kubernetes v1.17.4 cluster on Google Compute Engine with Fedora CoreOS.
+In this tutorial, we'll create a Kubernetes v1.18.1 cluster on Google Compute Engine with Fedora CoreOS.
 
 We'll declare a Kubernetes cluster using the Typhoon Terraform module. Then apply the changes to create a network, firewall rules, health checks, controller instances, worker managed instance group, load balancers, and TLS assets.
 
@@ -27,9 +24,9 @@ Terraform v0.12.21
 Add the [terraform-provider-ct](https://github.com/poseidon/terraform-provider-ct) plugin binary for your system to `~/.terraform.d/plugins/`, noting the final name.
 
 ```sh
-wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.4.0/terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-tar xzf terraform-provider-ct-v0.4.0-linux-amd64.tar.gz
-mv terraform-provider-ct-v0.4.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.4.0
+wget https://github.com/poseidon/terraform-provider-ct/releases/download/v0.5.0/terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+tar xzf terraform-provider-ct-v0.5.0-linux-amd64.tar.gz
+mv terraform-provider-ct-v0.5.0-linux-amd64/terraform-provider-ct ~/.terraform.d/plugins/terraform-provider-ct_v0.5.0
 ```
 
 Read [concepts](/architecture/concepts/) to learn about Terraform, modules, and organizing resources. Change to your infrastructure repository (e.g. `infra`).
@@ -59,7 +56,7 @@ provider "google" {
 }
 
 provider "ct" {
-  version = "0.4.0"
+  version = "0.5.0"
 }
 ```
 
@@ -76,13 +73,13 @@ Fedora CoreOS publishes images for Google Cloud, but does not yet upload them. G
 
 ```
 gsutil list
-gsutil cp fedora-coreos-31.20200113.3.1-gcp.x86_64.tar.gz gs://BUCKET
+gsutil cp fedora-coreos-31.20200323.3.2-gcp.x86_64.tar.gz gs://BUCKET
 ```
 
 Create a Compute Engine image from the file.
 
 ```
-gcloud compute images create fedora-coreos-31-20200113-3-1 --source-uri gs://BUCKET/fedora-coreos-31.20200113.3.1-gcp.x86_64.tar.gz
+gcloud compute images create fedora-coreos-31-20200323-3-2 --source-uri gs://BUCKET/fedora-coreos-31.20200323.3.2-gcp.x86_64.tar.gz
 ```
 
 ## Cluster
@@ -100,7 +97,7 @@ module "yavin" {
   dns_zone_name = "example-zone"
 
   # custom image name from above
-  os_image = "fedora-coreos-31-20200113-3-1"
+  os_image = "fedora-coreos-31-20200323-3-2"
 
   # configuration
   ssh_authorized_key = "ssh-rsa AAAAB3Nz..."
@@ -110,7 +107,7 @@ module "yavin" {
 }
 ```
 
-Reference the [variables docs](#variables) or the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-cloud/container-linux/kubernetes/variables.tf) source.
+Reference the [variables docs](#variables) or the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-cloud/fedora-coreos/kubernetes/variables.tf) source.
 
 ## ssh-agent
 
@@ -168,9 +165,9 @@ List nodes in the cluster.
 $ export KUBECONFIG=/home/user/.kube/configs/yavin-config
 $ kubectl get nodes
 NAME                                       ROLES    STATUS  AGE  VERSION
-yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.17.4
-yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.17.4
-yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.17.4
+yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.18.1
+yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.18.1
+yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.18.1
 ```
 
 List the pods.
@@ -197,7 +194,7 @@ Learn about [maintenance](/topics/maintenance/) and [addons](/addons/overview/).
 
 ## Variables
 
-Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-cloud/container-linux/kubernetes/variables.tf) source.
+Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-cloud/fedora-coreos/kubernetes/variables.tf) source.
 
 ### Required
 
@@ -207,6 +204,7 @@ Check the [variables.tf](https://github.com/poseidon/typhoon/blob/master/google-
 | region | Google Cloud region | "us-central1" |
 | dns_zone | Google Cloud DNS zone | "google-cloud.example.com" |
 | dns_zone_name | Google Cloud DNS zone name | "example-zone" |
+| os_image | Fedora CoreOS image for compute instances | "fedora-coreos-31-20200323-3-2" |
 | ssh_authorized_key | SSH public key for user 'core' | "ssh-rsa AAAAB3NZ..." |
 
 Check the list of valid [regions](https://cloud.google.com/compute/docs/regions-zones/regions-zones) and list Fedora CoreOS [images](https://cloud.google.com/compute/docs/images) with `gcloud compute images list | grep fedora-coreos`.
@@ -232,16 +230,14 @@ resource "google_dns_managed_zone" "zone-for-clusters" {
 
 | Name | Description | Default | Example |
 |:-----|:------------|:--------|:--------|
-| asset_dir | Absolute path to a directory where generated assets should be placed (contains secrets) | "" (disabled) | "/home/user/.secrets/clusters/yavin" |
 | controller_count | Number of controllers (i.e. masters) | 1 | 3 |
 | worker_count | Number of workers | 1 | 3 |
 | controller_type | Machine type for controllers | "n1-standard-1" | See below |
 | worker_type | Machine type for workers | "n1-standard-1" | See below |
-| os_image | Fedora CoreOS image for compute instances | "" | "fedora-coreos-31-20200113-3-1" |
 | disk_size | Size of the disk in GB | 40 | 100 |
 | worker_preemptible | If enabled, Compute Engine will terminate workers randomly within 24 hours | false | true |
-| controller_snippets | Controller Fedora CoreOS Config snippets | [] | UNSUPPORTED |
-| worker_snippets | Worker Fedora CoreOS Config snippets | [] | UNSUPPORTED |
+| controller_snippets | Controller Fedora CoreOS Config snippets | [] | [examples](/advanced/customization/) |
+| worker_snippets | Worker Fedora CoreOS Config snippets | [] | [examples](/advanced/customization/) |
 | networking | Choice of networking provider | "calico" | "calico" or "flannel" |
 | pod_cidr | CIDR IPv4 range to assign to Kubernetes pods | "10.2.0.0/16" | "10.22.0.0/16" |
 | service_cidr | CIDR IPv4 range to assign to Kubernetes services | "10.3.0.0/16" | "10.3.0.0/24" |

docs/index.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](advanced/worker-pools/), [preemptible](cl/google-cloud/#preemption) workers, and [snippets](advanced/customization/#container-linux) customization
@@ -21,20 +21,13 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 Typhoon provides a Terraform Module for each supported operating system and platform.
 
-| Platform      | Operating System | Terraform Module | Status |
-|---------------|------------------|------------------|--------|
-| AWS           | Container Linux  | [aws/container-linux/kubernetes](cl/aws.md) | stable |
-| Azure         | Container Linux  | [azure/container-linux/kubernetes](cl/azure.md) | alpha |
-| Bare-Metal    | Container Linux  | [bare-metal/container-linux/kubernetes](cl/bare-metal.md) | stable |
-| Digital Ocean | Container Linux  | [digital-ocean/container-linux/kubernetes](cl/digital-ocean.md) | beta |
-| Google Cloud  | Container Linux  | [google-cloud/container-linux/kubernetes](cl/google-cloud.md) | stable |
-
 Typhoon is available for [Fedora CoreOS](https://getfedora.org/coreos/).
 
 | Platform      | Operating System | Terraform Module | Status |
 |---------------|------------------|------------------|--------|
 | AWS           | Fedora CoreOS | [aws/fedora-coreos/kubernetes](fedora-coreos/aws.md) | stable |
 | Bare-Metal    | Fedora CoreOS | [bare-metal/fedora-coreos/kubernetes](fedora-coreos/bare-metal.md) | beta |
+| DigitalOcean  | Fedora CoreOS | [digital-ocean/fedora-coreos/kubernetes](fedora-coreos/digitalocean.md) | alpha |
 | Google Cloud  | Fedora CoreOS | [google-cloud/fedora-coreos/kubernetes](google-cloud/fedora-coreos/kubernetes) | beta |
 
 Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org/releases/).
@@ -44,13 +37,25 @@ Typhoon is available for [Flatcar Container Linux](https://www.flatcar-linux.org
 | AWS           | Flatcar Linux    | [aws/container-linux/kubernetes](cl/aws.md) | stable |
 | Azure         | Flatcar Linux    | [azure/container-linux/kubernetes](cl/azure.md) | alpha |
 | Bare-Metal    | Flatcar Linux    | [bare-metal/container-linux/kubernetes](cl/bare-metal.md) | stable |
+| DigitalOcean | Flatcar Linux  | [digital-ocean/container-linux/kubernetes](cl/digital-ocean.md) | alpha |
 | Google Cloud  | Flatcar Linux  | [google-cloud/container-linux/kubernetes](cl/google-cloud.md) | alpha |
-| Digital Ocean | Flatcar Linux  | [digital-ocean/container-linux/kubernetes](cl/digital-ocean.md) | alpha |
+
+Typhoon is available for CoreOS Container Linux ([no updates](https://coreos.com/os/eol/) after May 2020).
+
+| Platform      | Operating System | Terraform Module | Status |
+|---------------|------------------|------------------|--------|
+| AWS           | Container Linux  | [aws/container-linux/kubernetes](cl/aws.md) | stable |
+| Azure         | Container Linux  | [azure/container-linux/kubernetes](cl/azure.md) | alpha |
+| Bare-Metal    | Container Linux  | [bare-metal/container-linux/kubernetes](cl/bare-metal.md) | stable |
+| Digital Ocean | Container Linux  | [digital-ocean/container-linux/kubernetes](cl/digital-ocean.md) | beta |
+| Google Cloud  | Container Linux  | [google-cloud/container-linux/kubernetes](cl/google-cloud.md) | stable |
+
 
 ## Documentation
 
 * Architecture [concepts](architecture/concepts.md) and [operating-systems](architecture/operating-systems.md)
-* Tutorials for [AWS](cl/aws.md), [Azure](cl/azure.md), [Bare-Metal](cl/bare-metal.md), [Digital Ocean](cl/digital-ocean.md), and [Google-Cloud](cl/google-cloud.md)
+* Fedora CoreOS tutorials for [AWS](fedora-coreos/aws.md), [Bare-Metal](fedora-coreos/bare-metal.md), [DigitalOcean](fedora-coreos/digitalocean.md), and [Google Cloud](fedora-coreos/google-cloud.md)
+* Flatcar Linux tutorials for [AWS](cl/aws.md), [Azure](cl/azure.md), [Bare-Metal](cl/bare-metal.md), [DigitalOcean](cl/digital-ocean.md), and [Google Cloud](cl/google-cloud.md)
 
 ## Example
 
@@ -58,7 +63,7 @@ Define a Kubernetes cluster by using the Terraform module for your chosen platfo
 
 ```tf
 module "yavin" {
-  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//google-cloud/container-linux/kubernetes?ref=v1.18.1"
 
   # Google Cloud
   cluster_name  = "yavin"
@@ -96,9 +101,9 @@ In 4-8 minutes (varies by platform), the cluster will be ready. This Google Clou
 $ export KUBECONFIG=/home/user/.kube/configs/yavin-config
 $ kubectl get nodes
 NAME                                       ROLES    STATUS  AGE  VERSION
-yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.17.4
-yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.17.4
-yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.17.4
+yavin-controller-0.c.example-com.internal  <none>   Ready   6m   v1.18.1
+yavin-worker-jrbf.c.example-com.internal   <none>   Ready   5m   v1.18.1
+yavin-worker-mzdm.c.example-com.internal   <none>   Ready   5m   v1.18.1
 ```
 
 List the pods.

docs/topics/maintenance.md

@@ -18,7 +18,7 @@ module "yavin" {
 }
 
 module "mercury" {
-  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=v1.17.4"
+  source = "git::https://github.com/poseidon/typhoon//bare-metal/container-linux/kubernetes?ref=v1.18.1"
   ...
 }
 ```
@@ -279,15 +279,15 @@ Typhoon modules have been adapted for Terraform v0.12. Provider plugins requirem
 
 | Typhoon Release   | Terraform version   |
 |-------------------|---------------------|
-| v1.17.4 - ?       | v0.12.x             |
-| v1.10.3 - v1.17.4 | v0.11.x             |
+| v1.18.1 - ?       | v0.12.x             |
+| v1.10.3 - v1.18.1 | v0.11.x             |
 | v1.9.2 - v1.10.2  | v0.10.4+ or v0.11.x |
 | v1.7.3 - v1.9.1   | v0.10.x             |
 | v1.6.4 - v1.7.2   | v0.9.x              |
 
 ### New users
 
-New users can start with Terraform v0.12.x and follow the docs for Typhoon v1.17.4+ without issue.
+New users can start with Terraform v0.12.x and follow the docs for Typhoon v1.18.1+ without issue.
 
 ### Existing users
 

docs/topics/security.md

@@ -40,9 +40,14 @@ Typhoon limits exposure to many security threats, but it is not a silver bullet.
 * Do not give untrusted users a shell behind your firewall
 * Define network policies for your namespaces
 
-## OpenPGP Signing
+## Container Images
 
-Typhoon uses upstream container images and binaries. We do not distribute artifacts of our own. If you find artifacts claiming to be from Typhoon, please send a note.
+Typhoon uses upstream container images (where possible) and upstream binaries.
+
+!!! note
+    Kubernetes releases `kubelet` as a binary for distros to package, either as a DEB/RPM on traditional distros or as a container image for container-optimized operating systems.
+
+Typhoon [packages](https://github.com/poseidon/kubelet) the upstream Kubelet and its dependencies as a [container image](https://quay.io/repository/poseidon/kubelet) for use in Typhoon. The upstream Kubelet binary is checksummed and packaged directly. Quay automated builds provide verifiability and confidence in image contents.
 
 ## Disclosures
 

google-cloud/container-linux/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [preemptible](https://typhoon.psdn.io/cl/google-cloud/#preemption) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

google-cloud/container-linux/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]

google-cloud/container-linux/kubernetes/cl/controller.yaml

@@ -7,7 +7,7 @@ systemd:
         - name: 40-etcd-cluster.conf
           contents: |
             [Service]
-            Environment="ETCD_IMAGE_TAG=v3.4.4"
+            Environment="ETCD_IMAGE_TAG=v3.4.7"
             Environment="ETCD_IMAGE_URL=docker://quay.io/coreos/etcd"
             Environment="RKT_RUN_ARGS=--insecure-options=image"
             Environment="ETCD_NAME=${etcd_name}"
@@ -90,8 +90,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -124,7 +123,6 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
         ExecStart=/usr/bin/rkt run \
             --trust-keys-from-https \
             --volume config,kind=host,source=/etc/kubernetes/bootstrap-secrets \
@@ -134,7 +132,7 @@ systemd:
             --volume script,kind=host,source=/opt/bootstrap/apply \
             --mount volume=script,target=/apply \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
             --exec=/apply
@@ -169,8 +167,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       filesystem: root
       mode: 0544
@@ -182,6 +182,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5

google-cloud/container-linux/kubernetes/controllers.tf

@@ -68,7 +68,7 @@ data "ct_config" "controller-ignitions" {
   count        = var.controller_count
   content      = data.template_file.controller-configs.*.rendered[count.index]
   pretty_print = false
-  snippets     = var.controller_clc_snippets
+  snippets     = var.controller_snippets
 }
 
 # Controller Container Linux configs

google-cloud/container-linux/kubernetes/variables.tf

@@ -64,13 +64,13 @@ variable "worker_preemptible" {
   default     = false
 }
 
-variable "controller_clc_snippets" {
+variable "controller_snippets" {
   type        = list(string)
   description = "Controller Container Linux Config snippets"
   default     = []
 }
 
-variable "worker_clc_snippets" {
+variable "worker_snippets" {
   type        = list(string)
   description = "Worker Container Linux Config snippets"
   default     = []

google-cloud/container-linux/kubernetes/workers.tf

@@ -17,7 +17,7 @@ module "workers" {
   ssh_authorized_key    = var.ssh_authorized_key
   service_cidr          = var.service_cidr
   cluster_domain_suffix = var.cluster_domain_suffix
-  clc_snippets          = var.worker_clc_snippets
+  snippets              = var.worker_snippets
   node_labels           = var.worker_node_labels
 }
 

google-cloud/container-linux/kubernetes/workers/cl/worker.yaml

@@ -63,8 +63,7 @@ systemd:
           --mount volume=var-log,target=/var/log \
           --volume opt-cni-bin,kind=host,source=/opt/cni/bin \
           --mount volume=opt-cni-bin,target=/opt/cni/bin \
-          docker://k8s.gcr.io/hyperkube:v1.17.4 \
-          --exec=/usr/local/bin/kubelet -- \
+          docker://quay.io/poseidon/kubelet:v1.18.1 -- \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -78,9 +77,9 @@ systemd:
           --lock-file=/var/run/lock/kubelet.lock \
           --network-plugin=cni \
           --node-labels=node.kubernetes.io/node \
-          %{ for label in split(",", node_labels) }
+          %{~ for label in split(",", node_labels) ~}
           --node-labels=${label} \
-          %{ endfor ~}
+          %{~ endfor ~}
           --pod-manifest-path=/etc/kubernetes/manifests \
           --read-only-port=0 \
           --volume-plugin-dir=/var/lib/kubelet/volumeplugins
@@ -126,11 +125,10 @@ storage:
             --volume config,kind=host,source=/etc/kubernetes \
             --mount volume=config,target=/etc/kubernetes \
             --insecure-options=image \
-            docker://k8s.gcr.io/hyperkube:v1.17.4 \
+            docker://quay.io/poseidon/kubelet:v1.18.1 \
             --net=host \
             --dns=host \
-            -- \
-            kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
+            --exec=/usr/local/bin/kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
 passwd:
   users:
     - name: core

google-cloud/container-linux/kubernetes/workers/variables.tf

@@ -52,7 +52,7 @@ variable "preemptible" {
   default     = false
 }
 
-variable "clc_snippets" {
+variable "snippets" {
   type        = list(string)
   description = "Container Linux Config snippets"
   default     = []

google-cloud/container-linux/kubernetes/workers/workers.tf

@@ -73,7 +73,7 @@ resource "google_compute_instance_template" "worker" {
 data "ct_config" "worker-ignition" {
   content      = data.template_file.worker-config.rendered
   pretty_print = false
-  snippets     = var.clc_snippets
+  snippets     = var.snippets
 }
 
 # Worker Container Linux config

google-cloud/fedora-coreos/kubernetes/README.md

@@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
 
 ## Features <a href="https://www.cncf.io/certification/software-conformance/"><img align="right" src="https://storage.googleapis.com/poseidon/certified-kubernetes.png"></a>
 
-* Kubernetes v1.17.4 (upstream)
+* Kubernetes v1.18.1 (upstream)
 * Single or multi-master, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
 * On-cluster etcd with TLS, [RBAC](https://kubernetes.io/docs/admin/authorization/rbac/)-enabled, [network policy](https://kubernetes.io/docs/concepts/services-networking/network-policies/)
 * Advanced features like [worker pools](https://typhoon.psdn.io/advanced/worker-pools/), [preemptible](https://typhoon.psdn.io/cl/google-cloud/#preemption) workers, and [snippets](https://typhoon.psdn.io/advanced/customization/#container-linux) customization

google-cloud/fedora-coreos/kubernetes/bootstrap.tf

@@ -1,6 +1,6 @@
 # Kubernetes assets (kubeconfig, manifests)
 module "bootstrap" {
-  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=73784c1b2c791d9ba586a1478979ac34dd324dad"
+  source = "git::https://github.com/poseidon/terraform-render-bootstrap.git?ref=1ad53d3b1c1ad75a4ed27f124f772fc5dc025245"
 
   cluster_name          = var.cluster_name
   api_servers           = [format("%s.%s", var.cluster_name, var.dns_zone)]

google-cloud/fedora-coreos/kubernetes/fcc/controller.yaml

@@ -28,7 +28,7 @@ systemd:
           --network host \
           --volume /var/lib/etcd:/var/lib/etcd:rw,Z \
           --volume /etc/ssl/etcd:/etc/ssl/certs:ro,Z \
-          quay.io/coreos/etcd:v3.4.4
+          quay.io/coreos/etcd:v3.4.7
         ExecStop=/usr/bin/podman stop etcd
         [Install]
         WantedBy=multi-user.target
@@ -79,7 +79,7 @@ systemd:
           --volume /var/log:/var/log \
           --volume /var/run/lock:/var/run/lock:z \
           --volume /opt/cni/bin:/opt/cni/bin:z \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -116,14 +116,14 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         WorkingDirectory=/opt/bootstrap
-        ExecStartPre=-/usr/bin/bash -c 'set -x && [ -n "$(ls /opt/bootstrap/assets/manifests-*/* 2>/dev/null)" ] && mv /opt/bootstrap/assets/manifests-*/* /opt/bootstrap/assets/manifests && rm -rf /opt/bootstrap/assets/manifests-*'
+        ExecStartPre=-/usr/bin/podman rm bootstrap
         ExecStart=/usr/bin/podman run --name bootstrap \
             --network host \
             --volume /etc/kubernetes/bootstrap-secrets:/etc/kubernetes/secrets:ro,Z \
             --volume /opt/bootstrap/assets:/assets:ro,Z \
             --volume /opt/bootstrap/apply:/apply:ro,Z \
             --entrypoint=/apply \
-            k8s.gcr.io/hyperkube:v1.17.4
+            quay.io/poseidon/kubelet:v1.18.1
         ExecStartPost=/bin/touch /opt/bootstrap/bootstrap.done
         ExecStartPost=-/usr/bin/podman stop bootstrap
 storage:
@@ -155,8 +155,10 @@ storage:
           sudo mv static-manifests/* /etc/kubernetes/manifests/
           sudo mkdir -p /opt/bootstrap/assets
           sudo mv manifests /opt/bootstrap/assets/manifests
-          sudo mv manifests-networking /opt/bootstrap/assets/manifests-networking
-          rm -rf assets auth static-manifests tls
+          sudo mkdir -p /opt/bootstrap/assets/manifests/crds
+          sudo mv manifests-networking/{crd,cluster}*.yaml /opt/bootstrap/assets/manifests/crds 2>/dev/null || true
+          sudo mv manifests-networking/* /opt/bootstrap/assets/manifests/
+          rm -rf assets auth static-manifests tls manifests-networking
     - path: /opt/bootstrap/apply
       mode: 0544
       contents:
@@ -167,6 +169,10 @@ storage:
             echo "Waiting for static pod control plane"
             sleep 5
           done
+          until kubectl apply -f /assets/manifests/crds -R; do
+             echo "Retry Custom Resource Definition manifests"
+             sleep 5
+          done
           until kubectl apply -f /assets/manifests -R; do
              echo "Retry applying manifests"
              sleep 5
@@ -182,19 +188,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
     - path: /etc/etcd/etcd.env
       mode: 0644
       contents:

google-cloud/fedora-coreos/kubernetes/workers/fcc/worker.yaml

@@ -49,7 +49,7 @@ systemd:
           --volume /var/log:/var/log \
           --volume /var/run/lock:/var/run/lock:z \
           --volume /opt/cni/bin:/opt/cni/bin:z \
-          k8s.gcr.io/hyperkube:v1.17.4 kubelet \
+          quay.io/poseidon/kubelet:v1.18.1 \
           --anonymous-auth=false \
           --authentication-token-webhook \
           --authorization-mode=Webhook \
@@ -87,7 +87,7 @@ systemd:
         Type=oneshot
         RemainAfterExit=true
         ExecStart=/bin/true
-        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z k8s.gcr.io/hyperkube:v1.17.4 kubectl --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
+        ExecStop=/bin/bash -c '/usr/bin/podman run --volume /etc/kubernetes:/etc/kubernetes:ro,z --entrypoint /usr/local/bin/kubectl quay.io/poseidon/kubelet:v1.18.1 --kubeconfig=/etc/kubernetes/kubeconfig delete node $HOSTNAME'
         [Install]
         WantedBy=multi-user.target
 storage:
@@ -110,19 +110,6 @@ storage:
           DefaultCPUAccounting=yes
           DefaultMemoryAccounting=yes
           DefaultBlockIOAccounting=yes
-    - path: /etc/sysconfig/docker
-      mode: 0644
-      overwrite: true
-      contents:
-        inline: |
-          # Modify these options if you want to change the way the docker daemon runs
-          OPTIONS="--selinux-enabled \
-            --log-driver=json-file \
-            --live-restore \
-            --default-ulimit nofile=1024:1024 \
-            --init-path /usr/libexec/docker/docker-init \
-            --userland-proxy-path /usr/libexec/docker/docker-proxy \
-          "
 passwd:
   users:
     - name: core

google-cloud/fedora-coreos/kubernetes/workers/workers.tf

@@ -71,9 +71,9 @@ resource "google_compute_instance_template" "worker" {
 
 # Worker Ignition config
 data "ct_config" "worker-ignition" {
-  content      = data.template_file.worker-config.rendered
-  strict       = true
-  snippets     = var.snippets
+  content  = data.template_file.worker-config.rendered
+  strict   = true
+  snippets = var.snippets
 }
 
 # Worker Fedora CoreOS config

mkdocs.yml

@@ -53,16 +53,16 @@ nav:
     - 'Bare-Metal': 'architecture/bare-metal.md'
     - 'DigitalOcean': 'architecture/digitalocean.md'
     - 'Google Cloud': 'architecture/google-cloud.md'
+  - 'Fedora CoreOS':
+    - 'AWS': 'fedora-coreos/aws.md'
+    - 'Bare-Metal': 'fedora-coreos/bare-metal.md'
+    - 'Google Cloud': 'fedora-coreos/google-cloud.md'
   - 'Container Linux':
     - 'AWS': 'cl/aws.md'
     - 'Azure': 'cl/azure.md'
     - 'Bare-Metal': 'cl/bare-metal.md'
     - 'Digital Ocean': 'cl/digital-ocean.md'
     - 'Google Cloud': 'cl/google-cloud.md'
-  - 'Fedora CoreOS':
-    - 'AWS': 'fedora-coreos/aws.md'
-    - 'Bare-Metal': 'fedora-coreos/bare-metal.md'
-    - 'Google Cloud': 'fedora-coreos/google-cloud.md'
   - 'Topics':
     - 'Maintenance': 'topics/maintenance.md'
     - 'Hardware': 'topics/hardware.md'