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0120b9f38d
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46 Commits

Author SHA1 Message Date
Dalton Hubble
0120b9f38d
Remove the cluster_domain_suffix variable 
* Drop support for `cluster_domain_suffix` customization and
always use `cluster.local`. Many components in the Kubernetes
ecosystem assume this default suffix and its very rare to be
setting a special value here these days
* Cleanup a few variables that are seldom used
 2024-08-02 15:05:25 -07:00
Dalton Hubble
0669d44026
Update Kubernetes from v1.30.2 to v1.30.3 
* Update builtin Cilium manifests from v1.15.6 to v1.15.7
* Update builtin flannel manifests from v0.25.4 to v0.25.5
 2024-07-20 11:04:32 -07:00
Dalton Hubble
931d6d18de
Update Kubernetes from v1.30.1 to v1.30.2 
* Update CoreDNS from v1.9.4 to v1.11.1
* Update Cilium from v1.15.5 to v1.15.6
* Update flannel from v0.25.1 to v0.25.4
 2024-06-17 08:20:03 -07:00
Dalton Hubble
563feacd29 Update Kubernetes from v1.30.0 to v1.30.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.30.md#v1301
 2024-05-15 21:59:00 -07:00
Dalton Hubble
d08cd317d9 Allow CoreDNS and kube-proxy to be optional components 
* Allow for more minimal base cluster setups, that manage CoreDNS or
kube-proxy as applications, with rolling updates, or deploy systems.
Or in the case of kube-proxy, its becoming more common to not install
it and instead use Cilium
* Add a `components` pass-through variable to configure pre-installed
components like kube-proxy and CoreDNS. These components can be
disabled (individually or together) to allow for managing components
with separate plan/apply processes or automations
* terraform-render-bootstrap manifest assets are now structured as
manifests/{coredns,kube-proxy,network} so adapt the controller
layout scripts accordingly
* This is similar to some changes in v1.29.2 that allowed for the
container networking provider manifests to be skipped

Related: https://github.com/poseidon/typhoon/pull/1419, https://github.com/poseidon/typhoon/pull/1421
 2024-05-12 21:20:27 -07:00
Dalton Hubble
6ac5a0222b
Update Kubernetes from v1.29.3 to v1.30.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.30.md#v1300
 2024-04-23 20:51:54 -07:00
Dalton Hubble
cafcdbc3e7
Update etcd from v3.5.12 to v3.5.13 and bump Calico/Cilium 
* Update Cilium from v1.15.2 to v1.15.3
* Update Calico from v3.27.2 to v3.27.3
 2024-04-03 22:51:07 -07:00
Dalton Hubble
8524aa00bc Update Kubernetes from v1.29.2 to v1.29.3 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.29.md#v1293
 2024-03-23 00:47:10 -07:00
Dalton Hubble
0e7977694f Allow CNI networking to be set to none 
* Set CNI networking to "none" to skip installing any CNI provider
(i.e. no flannel, Calico, or Cilium). In this mode, cluster nodes
will be NotReady until you add your own CNI stack
* Motivation: I now tend to manage CNI components as addon modules
just like other applications overlaid onto a cluster. It allows for
faster iteration and may eventually become the recommendation
 2024-02-23 22:57:47 -08:00
Dalton Hubble
f2f625984e Update Kubernetes from v1.29.1 to v1.29.2 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.29.md#v1292
 2024-02-18 18:31:31 -08:00
Dalton Hubble
aecb7775a8 Update etcd from v3.5.10 to v3.5.12 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.11
* https://github.com/etcd-io/etcd/releases/tag/v3.5.12
 2024-02-18 15:36:37 -08:00
Dalton Hubble
e247673a20 Update Kubernetes from v1.29.0 to v1.29.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.29.md#v1291
 2024-02-04 10:47:42 -08:00
Dalton Hubble
84e4f02917 Update Kubernetes from v1.28.4 to v1.29.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.29.md
 2023-12-22 10:27:24 -08:00
Dalton Hubble
8254d8f3db Update Kubernetes from v1.28.3 to v1.28.4 
* https://github.com/kubernetes/kubernetes/releases/tag/v1.28.4
 2023-11-21 06:16:58 -08:00
Dalton Hubble
39af942f4d Update etcd from v3.5.9 to v3.5.10 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.10
 2023-10-29 18:21:40 -07:00
Dalton Hubble
005a1119f3 Update Kubernetes from v1.28.2 to v1.28.3 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.28.md#v1283
 2023-10-22 18:43:54 -07:00
Dalton Hubble
f5bc1fb1fd Update Kubernetes from v1.28.1 to v1.28.2 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.28.md#v1282
 2023-09-14 13:01:33 -07:00
Dalton Hubble
126973082a Update Kubernetes from v1.28.0 to v1.28.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.28.md#v1281
 2023-08-26 13:29:48 -07:00
Dalton Hubble
81eed2e909 Update Kubernetes from v1.27.4 to v1.28.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.28.md#v1280
 2023-08-20 15:41:23 -07:00
Dalton Hubble
0a6183f859 Update Kubernetes from v1.27.3 to v1.27.4 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1274
 2023-07-21 08:00:50 -07:00
Dalton Hubble
7255f82d71 Update Kubernetes fromv 1.27.2 to v1.27.3 
* Update Cilium v1.13.3 to v1.13.4

Rel: https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1273
 2023-06-16 08:28:17 -07:00
Dalton Hubble
2a5a43f3a4 Update etcd from v3.5.8 to v3.5.9 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.9
 2023-06-11 19:28:23 -07:00
Dalton Hubble
8ebf31073c Update Kubernetes from v1.27.1 to v1.27.2 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1272
 2023-05-21 14:02:49 -07:00
Dalton Hubble
501e6d25e0 Update Kubernetes from v1.27.0 to v1.27.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1271
 2023-04-15 23:16:51 -07:00
Dalton Hubble
1e76e1a200 Update etcd from v3.5.7 to v3.5.8 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.8
 2023-04-15 22:54:31 -07:00
Dalton Hubble
4322857bec Update Kubernetes from v1.26.3 to v1.27.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.27.md#v1270
 2023-04-15 22:49:12 -07:00
Dalton Hubble
3670ec7ed7 Update Kubernetes from v1.26.2 to v1.26.3 
* Update Cilium from v1.13.0 to v1.13.1
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md#v1263
 2023-03-21 18:18:19 -07:00
Dalton Hubble
76ebc08fd2 Update Kubernetes from v1.26.1 to v1.26.2 
* https://github.com/poseidon/terraform-render-bootstrap/pull/345
 2023-03-01 17:13:16 -08:00
Dalton Hubble
b5ba65d4c2 Update etcd from v3.5.6 to v3.5.7 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.7
 2023-01-24 08:29:08 -08:00
Dalton Hubble
f2bf5ac3fb Update Kubernetes from v1.26.0 to v1.26.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md#v1261
 2023-01-19 08:27:56 -08:00
Dalton Hubble
d6cbcf9f96 Update Kubernetes from v1.26.0-rc.1 to v1.26.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md#v1260
 2022-12-08 08:47:24 -08:00
Dalton Hubble
0dc8740c77 Update Kubernetes from v1.26.0-rc.0 to v1.26.0-rc.1 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md#v1260-rc1
 2022-12-05 09:31:45 -08:00
Dalton Hubble
a9b12b6bca Update Kubernetes from v1.25.4 to v1.26.0-rc.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.26.md#v1260-rc0
 2022-11-30 08:47:40 -08:00
Dalton Hubble
a193762eed Update etcd from v3.5.5 to v3.5.6 
* https://github.com/etcd-io/etcd/releases/tag/v3.5.6
 2022-11-23 10:59:17 -08:00
Dalton Hubble
26dbc7e91d Update Kubernetes from v1.25.3 to v1.25.4 
* Update Calico from v3.24.3 to v3.24.5
* Update Prometheus and Grafana addons
 2022-11-10 09:42:21 -08:00
Dalton Hubble
651151805d Update Kubernetes v1.25.2 to v1.25.3 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.25.md#v1253
 2022-10-13 21:02:39 -07:00
Dalton Hubble
3ee462a24c Update Kubernetes from v1.25.1 to v1.25.2 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.25.md#v1252
 2022-09-22 08:15:30 -07:00
Dalton Hubble
74d4d56dbd Remove workaround for v1.25.0 ConfigMap rendering issue 
* LocalStorageCapacityIsolationFSQuotaMonitoring was reverted back to
alpha in v1.25.1, so we don't need to explicitly disable it anymore

Rel: https://github.com/kubernetes/kubernetes/issues/112081
 2022-09-19 09:10:24 -07:00
Dalton Hubble
5abe84b520 Update etcd from v3.5.4 to v3.5.5 
* https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md#v355
 2022-09-15 09:01:45 -07:00
Dalton Hubble
09751cc0e8 Update Kubernetes from v1.25.0 to v1.25.1 
* https://github.com/kubernetes/kubernetes/releases/tag/v1.25.1
 2022-09-15 08:23:22 -07:00
Dalton Hubble
393a38deff Configure Graceful Node Shutdown and lengthen max inhibitor delay 
* Configure Kubelet Graceful Node Shutdown to detect system shutdown
events and stop running containers gracefully when possible
* Allow up to 30s for critical pods to gracefully shutdown
* Allow up to 15s for regular pods to gracefully shutdown
* Node will be marked as NotReady promptly, instead of having to
wait for health checks
* Kubelet uses systemd inhibitor locks to delay shutdown for a limited
number of seconds
* Raise the default max inhibitor time from 5s to 45s

Verify systemd inhibitor locks are present:

```
sudo systemd-inhibit --list
WHO     UID USER PID  COMM    WHAT     WHY                                        MODE
kubelet 0   root 4581 kubelet shutdown Kubelet needs time to handle node shutdown delay
```

Tail journal logs and then shutdown a node via systemctl reboot
or via the cloud console to watch container shutdown

Rel:

* https://kubernetes.io/blog/2021/04/21/graceful-node-shutdown-beta/
* https://kubernetes.io/docs/reference/config-api/kubelet-config.v1beta1/
* https://github.com/kubernetes/kubernetes/issues/107043
* https://github.com/coreos/fedora-coreos-tracker/issues/821
* https://www.freedesktop.org/software/systemd/man/systemd-inhibit.html
* https://github.com/kubernetes/kubernetes/blob/release-1.24/pkg/kubelet/nodeshutdown/nodeshutdown_manager_linux.go
* https://github.com/godbus/dbus/blob/master/conn.go
 2022-08-28 10:37:33 -07:00
Dalton Hubble
275fc0f9e8 Disable LocalStorageCapacityIsolationFSQuotaMonitoring feature 
* Kubernetes v1.25.0 moved the LocalStorageCapacityIsolationFSQuotaMonitoring
feature from alpha to beta, but it breaks Kubelet updating ConfigMaps in
Pods, as shown by conformance tests
* Kubernetes is rolling LocalStorageCapacityIsolationFSQuotaMonitoring back
to alpha so its not enabled by default, but that will require a release
* Disable the feature gate directly as a workaround for now to make
Kubernetes v1.25.0 usable

```
FailedMount: MountVolume.SetUp failed for volume "configmap-volume" : requesting quota on existing directory /var/lib/kubelet/pods/f09fae17-ff16-4a05-aab3-7b897cb5b732/volumes/kubernetes.io~configmap/configmap-volume but different pod 673ad247-abf0-434e-99eb-1c3f57d7fdaa a4568e94-2b2d-438f-a4bd-c9edc814e478
```

Rel:

* https://github.com/kubernetes/kubernetes/pull/112076
* https://github.com/kubernetes/kubernetes/pull/107329
 2022-08-27 09:49:35 -07:00
Dalton Hubble
3fb59a3289 Migrate most Kubelet flags to KubeletConfiguration file 
* Add a KubeletConfiguration file to replace most Kubelet
flags, to prepare for upcoming changes
* Pass Kubelet the --config flag to specify the location of
the KubeletConfiguration
* Remove flsgs / configuration where it matches the defaults
  * Remove --cgroups-per-qos, defaults to true
  * Remove --container-runtime, defaults to remote
  * Remove enforce-node-allocatable=pods, defaults to pods

Rel:

* https://kubernetes.io/docs/reference/command-line-tools-reference/kubelet/
* https://kubernetes.io/docs/reference/config-api/kubelet-config.v1beta1/
 2022-08-27 09:28:15 -07:00
Dalton Hubble
a31dbceac6 Update Kubernetes from v1.24.4 to v1.25.0 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.25.md
 2022-08-25 09:18:14 -07:00
Dalton Hubble
760b4cd5ee Update Kubernetes from v1.24.3 to v1.24.4 
* https://github.com/kubernetes/kubernetes/blob/master/CHANGELOG/CHANGELOG-1.24.md#v1244
 2022-08-17 20:09:30 -07:00
Dalton Hubble
4a469513dd Migrate Flatcar Linux from Ignition spec v2.3.0 to v3.3.0 
* Requires poseidon v0.11+ and Flatcar Linux 3185.0.0+ (action required)
* Previously, Flatcar Linux configs have been parsed as Container
Linux Configs to Ignition v2.2.0 specs by poseidon/ct
* Flatcar Linux starting in 3185.0.0 now supports Ignition v3.x specs
(which are rendered from Butane Configs, like Fedora CoreOS)
* poseidon/ct v0.11.0 adds support for the flatcar Butane Config
variant so that Flatcar Linux can use Ignition v3.x

Rel:

* [Flatcar Support](https://flatcar-linux.org/docs/latest/provisioning/ignition/specification/#ignition-v3)
* [poseidon/ct support](https://github.com/poseidon/terraform-provider-ct/pull/131)
 2022-08-03 08:32:52 -07:00