Update Google Cloud Kubernetes from v1.7.7 to v1.8.1
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Dalton Hubble
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# Google Cloud
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In this tutorial, we'll create a Kubernetes v1.7.7 cluster on Google Compute Engine (not GKE).
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In this tutorial, we'll create a Kubernetes v1.8.1 cluster on Google Compute Engine (not GKE).
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We'll declare a Kubernetes cluster in Terraform using the Typhoon Terraform module. On apply, a network, firewall rules, managed instance groups of Kubernetes controllers and workers, network load balancers for controllers and workers, and health checks will be created.
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@ -80,7 +80,7 @@ module "google-cloud-yavin" {
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zone = "us-central1-c"
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dns_zone = "example.com"
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dns_zone_name = "example-zone"
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os_image = "coreos-stable-1465-6-0-v20170817"
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os_image = "coreos-stable-1520-6-0-v20171012"
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cluster_name = "yavin"
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controller_count = 1
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@ -120,7 +120,7 @@ Get or update Terraform modules.
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$ terraform get # downloads missing modules
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$ terraform get --update # updates all modules
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Get: git::https://github.com/poseidon/typhoon (update)
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Get: git::https://github.com/poseidon/bootkube-terraform.git?ref=v0.7.0 (update)
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Get: git::https://github.com/poseidon/bootkube-terraform.git?ref=v0.8.0 (update)
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```
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Plan the resources to be created.
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@ -154,9 +154,9 @@ In 5-10 minutes, the Kubernetes cluster will be ready.
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$ KUBECONFIG=/home/user/.secrets/clusters/yavin/auth/kubeconfig
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$ kubectl get nodes
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NAME STATUS AGE VERSION
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yavin-controller-1682.c.example-com.internal Ready 6m v1.7.7+coreos.0
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yavin-worker-jrbf.c.example-com.internal Ready 5m v1.7.7+coreos.0
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yavin-worker-mzdm.c.example-com.internal Ready 5m v1.7.7+coreos.0
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yavin-controller-1682.c.example-com.internal Ready 6m v1.8.1+coreos.0
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yavin-worker-jrbf.c.example-com.internal Ready 5m v1.8.1+coreos.0
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yavin-worker-mzdm.c.example-com.internal Ready 5m v1.8.1+coreos.0
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```
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List the pods.
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@ -11,7 +11,7 @@ Typhoon distributes upstream Kubernetes, architectural conventions, and cluster
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## Features
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* Kubernetes v1.7.7 (upstream, via [kubernetes-incubator/bootkube](https://github.com/kubernetes-incubator/bootkube))
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* Kubernetes v1.8.1 (upstream, via [kubernetes-incubator/bootkube](https://github.com/kubernetes-incubator/bootkube))
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* Single or multi-master, workloads isolated on workers, [Calico](https://www.projectcalico.org/) or [flannel](https://github.com/coreos/flannel) networking
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* 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/)
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* Ready for Ingress, Dashboards, Metrics, and other optional [addons](https://typhoon.psdn.io/addons/overview/)
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# Self-hosted Kubernetes assets (kubeconfig, manifests)
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module "bootkube" {
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source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=v0.7.0"
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source = "git::https://github.com/poseidon/terraform-render-bootkube.git?ref=v0.8.0"
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cluster_name = "${var.cluster_name}"
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api_servers = ["${format("%s.%s", var.cluster_name, var.dns_zone)}"]
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@ -34,7 +34,8 @@ systemd:
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--volume opt-cni-bin,kind=host,source=/opt/cni/bin \
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--mount volume=opt-cni-bin,target=/opt/cni/bin \
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--volume var-log,kind=host,source=/var/log \
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--mount volume=var-log,target=/var/log"
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--mount volume=var-log,target=/var/log \
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--hosts-entry=host"
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ExecStartPre=/bin/mkdir -p /opt/cni/bin
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ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
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ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
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@ -105,7 +106,7 @@ storage:
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contents:
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inline: |
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KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
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KUBELET_IMAGE_TAG=v1.7.7_coreos.0
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KUBELET_IMAGE_TAG=v1.8.1_coreos.0
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- path: /etc/sysctl.d/max-user-watches.conf
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filesystem: root
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contents:
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@ -128,7 +129,7 @@ storage:
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[ -d /opt/bootkube/assets/experimental/manifests ] && mv /opt/bootkube/assets/experimental/manifests/* /opt/bootkube/assets/manifests && rm -r /opt/bootkube/assets/experimental/manifests
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[ -d /opt/bootkube/assets/experimental/bootstrap-manifests ] && mv /opt/bootkube/assets/experimental/bootstrap-manifests/* /opt/bootkube/assets/bootstrap-manifests && rm -r /opt/bootkube/assets/experimental/bootstrap-manifests
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BOOTKUBE_ACI="$${BOOTKUBE_ACI:-quay.io/coreos/bootkube}"
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BOOTKUBE_VERSION="$${BOOTKUBE_VERSION:-v0.7.0}"
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BOOTKUBE_VERSION="$${BOOTKUBE_VERSION:-v0.8.0}"
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BOOTKUBE_ASSETS="$${BOOTKUBE_ASSETS:-/opt/bootkube/assets}"
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exec /usr/bin/rkt run \
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--trust-keys-from-https \
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@ -34,7 +34,8 @@ systemd:
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--volume opt-cni-bin,kind=host,source=/opt/cni/bin \
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--mount volume=opt-cni-bin,target=/opt/cni/bin \
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--volume var-log,kind=host,source=/var/log \
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--mount volume=var-log,target=/var/log"
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--mount volume=var-log,target=/var/log \
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--hosts-entry=host"
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ExecStartPre=/bin/mkdir -p /opt/cni/bin
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ExecStartPre=/bin/mkdir -p /etc/kubernetes/manifests
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ExecStartPre=/bin/mkdir -p /etc/kubernetes/cni/net.d
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@ -103,7 +104,7 @@ storage:
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contents:
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inline: |
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KUBELET_IMAGE_URL=quay.io/coreos/hyperkube
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KUBELET_IMAGE_TAG=v1.7.7_coreos.0
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KUBELET_IMAGE_TAG=v1.8.1_coreos.0
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- path: /etc/sysctl.d/max-user-watches.conf
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filesystem: root
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contents:
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@ -120,7 +121,7 @@ storage:
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--trust-keys-from-https \
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--volume config,kind=host,source=/etc/kubernetes \
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--mount volume=config,target=/etc/kubernetes \
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quay.io/coreos/hyperkube:v1.7.7_coreos.0 \
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quay.io/coreos/hyperkube:v1.8.1_coreos.0 \
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--net=host \
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--dns=host \
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--exec=/kubectl -- --kubeconfig=/etc/kubernetes/kubeconfig delete node $(hostname)
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