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updated to K8S v1.19.4 amongst other updates

pull/624/head
tonyjchong 2020-11-27 10:39:03 -08:00
parent ca96371e4d
commit 5659fcee01
7 changed files with 69 additions and 36 deletions
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2
deployments/coredns-1.7.0.yaml → deployments/coredns-1.8.0.yaml
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@ -98,7 +98,7 @@ spec:
beta.kubernetes.io/os: linux beta.kubernetes.io/os: linux
containers: containers:
- name: coredns - name: coredns
image: coredns/coredns:1.7.0 image: coredns/coredns:1.8.0
imagePullPolicy: IfNotPresent imagePullPolicy: IfNotPresent
resources: resources:
limits: limits:

6
docs/07-bootstrapping-etcd.md
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@ -22,15 +22,15 @@ Download the official etcd release binaries from the [etcd](https://github.com/e
``` ```
wget -q --show-progress --https-only --timestamping \ wget -q --show-progress --https-only --timestamping \
"https://github.com/etcd-io/etcd/releases/download/v3.4.10/etcd-v3.4.10-linux-amd64.tar.gz" "https://github.com/etcd-io/etcd/releases/download/v3.4.14/etcd-v3.4.14-linux-amd64.tar.gz"
``` ```
Extract and install the `etcd` server and the `etcdctl` command line utility: Extract and install the `etcd` server and the `etcdctl` command line utility:
``` ```
{ {
tar -xvf etcd-v3.4.10-linux-amd64.tar.gz tar -xvf etcd-v3.4.14-linux-amd64.tar.gz
sudo mv etcd-v3.4.10-linux-amd64/etcd* /usr/local/bin/ sudo mv etcd-v3.4.14-linux-amd64/etcd* /usr/local/bin/
} }
``` ```

52
docs/08-bootstrapping-kubernetes-controllers.md
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@ -28,10 +28,10 @@ Download the official Kubernetes release binaries:
``` ```
wget -q --show-progress --https-only --timestamping \ wget -q --show-progress --https-only --timestamping \
"https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kube-apiserver" \ "https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kube-apiserver" \
"https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kube-controller-manager" \ "https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kube-controller-manager" \
"https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kube-scheduler" \ "https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kube-scheduler" \
"https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kubectl" "https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kubectl"
``` ```
Install the Kubernetes binaries: Install the Kubernetes binaries:
@ -158,7 +158,7 @@ Create the `kube-scheduler.yaml` configuration file:
``` ```
cat <<EOF | sudo tee /etc/kubernetes/config/kube-scheduler.yaml cat <<EOF | sudo tee /etc/kubernetes/config/kube-scheduler.yaml
apiVersion: kubescheduler.config.k8s.io/v1alpha1 apiVersion: kubescheduler.config.k8s.io/v1beta1
kind: KubeSchedulerConfiguration kind: KubeSchedulerConfiguration
clientConnection: clientConnection:
kubeconfig: "/var/lib/kubernetes/kube-scheduler.kubeconfig" kubeconfig: "/var/lib/kubernetes/kube-scheduler.kubeconfig"
@ -244,6 +244,13 @@ sudo systemctl enable nginx
``` ```
### Verification ### Verification
---
**NOTE**
Although the `kubectl get componentstatues` still "works", the API has been deprecated as of Kubernetes v1.19
[Release Notes](https://kubernetes.io/docs/setup/release/notes/#deprecation-1)
---
``` ```
kubectl get componentstatuses --kubeconfig admin.kubeconfig kubectl get componentstatuses --kubeconfig admin.kubeconfig
@ -258,7 +265,7 @@ etcd-1 Healthy {"health":"true"}
etcd-2 Healthy {"health":"true"} etcd-2 Healthy {"health":"true"}
``` ```
Test the nginx HTTP health check proxy: Test the nginx HTTP health check proxy of the kubernetes-api:
``` ```
curl -H "Host: kubernetes.default.svc.cluster.local" -i http://127.0.0.1/healthz curl -H "Host: kubernetes.default.svc.cluster.local" -i http://127.0.0.1/healthz
@ -277,6 +284,25 @@ X-Content-Type-Options: nosniff
ok ok
``` ```
Test the health check of the kube-scheduler:
```
curl -i http://127.0.0.1:10251/healthz
```
```
HTTP/1.1 200 OK
Cache-Control: no-cache, private
Content-Type: text/plain; charset=utf-8
X-Content-Type-Options: nosniff
Date: Fri, 27 Nov 2020 17:48:26 GMT
Content-Length: 2
ok
```
> Remember to run the above commands on each controller node: `controller-0`, `controller-1`, and `controller-2`. > Remember to run the above commands on each controller node: `controller-0`, `controller-1`, and `controller-2`.
## RBAC for Kubelet Authorization ## RBAC for Kubelet Authorization
@ -295,7 +321,7 @@ Create the `system:kube-apiserver-to-kubelet` [ClusterRole](https://kubernetes.i
``` ```
cat <<EOF | kubectl apply --kubeconfig admin.kubeconfig -f - cat <<EOF | kubectl apply --kubeconfig admin.kubeconfig -f -
apiVersion: rbac.authorization.k8s.io/v1beta1 apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole kind: ClusterRole
metadata: metadata:
annotations: annotations:
@ -323,7 +349,7 @@ Bind the `system:kube-apiserver-to-kubelet` ClusterRole to the `kubernetes` user
``` ```
cat <<EOF | kubectl apply --kubeconfig admin.kubeconfig -f - cat <<EOF | kubectl apply --kubeconfig admin.kubeconfig -f -
apiVersion: rbac.authorization.k8s.io/v1beta1 apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding kind: ClusterRoleBinding
metadata: metadata:
name: system:kube-apiserver name: system:kube-apiserver
@ -403,12 +429,12 @@ curl --cacert ca.pem https://${KUBERNETES_PUBLIC_ADDRESS}:6443/version
``` ```
{ {
"major": "1", "major": "1",
"minor": "18", "minor": "19",
"gitVersion": "v1.18.6", "gitVersion": "v1.19.4",
"gitCommit": "dff82dc0de47299ab66c83c626e08b245ab19037", "gitCommit": "d360454c9bcd1634cf4cc52d1867af5491dc9c5f",
"gitTreeState": "clean", "gitTreeState": "clean",
"buildDate": "2020-07-15T16:51:04Z", "buildDate": "2020-11-11T13:09:17Z",
"goVersion": "go1.13.9", "goVersion": "go1.15.2",
"compiler": "gc", "compiler": "gc",
"platform": "linux/amd64" "platform": "linux/amd64"
} }

28
docs/09-bootstrapping-kubernetes-workers.md
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@ -49,13 +49,13 @@ sudo swapoff -a
``` ```
wget -q --show-progress --https-only --timestamping \ wget -q --show-progress --https-only --timestamping \
https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.18.0/crictl-v1.18.0-linux-amd64.tar.gz \ https://github.com/kubernetes-sigs/cri-tools/releases/download/v1.19.0/crictl-v1.19.0-linux-amd64.tar.gz \
https://github.com/opencontainers/runc/releases/download/v1.0.0-rc91/runc.amd64 \ https://github.com/opencontainers/runc/releases/download/v1.0.0-rc92/runc.amd64 \
https://github.com/containernetworking/plugins/releases/download/v0.8.6/cni-plugins-linux-amd64-v0.8.6.tgz \ https://github.com/containernetworking/plugins/releases/download/v0.8.7/cni-plugins-linux-amd64-v0.8.7.tgz \
https://github.com/containerd/containerd/releases/download/v1.3.6/containerd-1.3.6-linux-amd64.tar.gz \ https://github.com/containerd/containerd/releases/download/v1.4.2/containerd-1.4.2-linux-amd64.tar.gz \
https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kubectl \ https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kubectl \
https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kube-proxy \ https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kube-proxy \
https://storage.googleapis.com/kubernetes-release/release/v1.18.6/bin/linux/amd64/kubelet https://storage.googleapis.com/kubernetes-release/release/v1.19.4/bin/linux/amd64/kubelet
``` ```
Create the installation directories: Create the installation directories:
@ -75,9 +75,9 @@ Install the worker binaries:
``` ```
{ {
mkdir containerd mkdir containerd
tar -xvf crictl-v1.18.0-linux-amd64.tar.gz tar -xvf crictl-v1.19.0-linux-amd64.tar.gz
tar -xvf containerd-1.3.6-linux-amd64.tar.gz -C containerd tar -xvf containerd-1.4.2-linux-amd64.tar.gz -C containerd
sudo tar -xvf cni-plugins-linux-amd64-v0.8.6.tgz -C /opt/cni/bin/ sudo tar -xvf cni-plugins-linux-amd64-v0.8.7.tgz -C /opt/cni/bin/
sudo mv runc.amd64 runc sudo mv runc.amd64 runc
chmod +x crictl kubectl kube-proxy kubelet runc chmod +x crictl kubectl kube-proxy kubelet runc
sudo mv crictl kubectl kube-proxy kubelet runc /usr/local/bin/ sudo mv crictl kubectl kube-proxy kubelet runc /usr/local/bin/
@ -304,10 +304,10 @@ gcloud compute ssh controller-0 \
> output > output
``` ```
NAME STATUS ROLES AGE VERSION NAME STATUS ROLES AGE VERSION
worker-0 Ready <none> 24s v1.18.6 worker-0 Ready <none> 3m v1.19.4
worker-1 Ready <none> 24s v1.18.6 worker-1 Ready <none> 3m v1.19.4
worker-2 Ready <none> 24s v1.18.6 worker-2 Ready <none> 2m58s v1.19.4
``` ```
Next: [Configuring kubectl for Remote Access](10-configuring-kubectl.md) Next: [Configuring kubectl for Remote Access](10-configuring-kubectl.md)

13
docs/10-configuring-kubectl.md
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@ -34,6 +34,12 @@ Generate a kubeconfig file suitable for authenticating as the `admin` user:
``` ```
## Verification ## Verification
---
**NOTE**
Although the `kubectl get componentstatues` still "works", the API has been deprecated as of Kubernetes v1.19
> [Release Notes](https://kubernetes.io/docs/setup/release/notes/#deprecation-1)
---
Check the health of the remote Kubernetes cluster: Check the health of the remote Kubernetes cluster:
@ -52,6 +58,7 @@ etcd-1 Healthy {"health":"true"}
etcd-2 Healthy {"health":"true"} etcd-2 Healthy {"health":"true"}
``` ```
List the nodes in the remote Kubernetes cluster: List the nodes in the remote Kubernetes cluster:
``` ```
@ -62,9 +69,9 @@ kubectl get nodes
``` ```
NAME STATUS ROLES AGE VERSION NAME STATUS ROLES AGE VERSION
worker-0 Ready <none> 2m30s v1.18.6 worker-0 Ready <none> 6m34s v1.19.4
worker-1 Ready <none> 2m30s v1.18.6 worker-1 Ready <none> 6m34s v1.19.4
worker-2 Ready <none> 2m30s v1.18.6 worker-2 Ready <none> 6m32s v1.19.4
``` ```
Next: [Provisioning Pod Network Routes](11-pod-network-routes.md) Next: [Provisioning Pod Network Routes](11-pod-network-routes.md)

2
docs/12-dns-addon.md
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@ -7,7 +7,7 @@ In this lab you will deploy the [DNS add-on](https://kubernetes.io/docs/concepts
Deploy the `coredns` cluster add-on: Deploy the `coredns` cluster add-on:
``` ```
kubectl apply -f https://storage.googleapis.com/kubernetes-the-hard-way/coredns-1.7.0.yaml kubectl apply -f https://storage.googleapis.com/kubernetes-the-hard-way/coredns-1.8.0.yaml
``` ```
> output > output

2
docs/13-smoke-test.md
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@ -159,7 +159,7 @@ kubectl exec -ti $POD_NAME -- nginx -v
> output > output
``` ```
nginx version: nginx/1.19.1 nginx version: nginx/1.19.5
``` ```
## Services ## Services