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Remove cloud provider and move to ARM64

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Kelsey Hightower
2023-10-31 23:16:49 -07:00
committed by Kelsey Hightower
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63
docs/10-configuring-kubectl.md
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@@ -2,28 +2,45 @@
In this lab you will generate a kubeconfig file for the `kubectl` command line utility based on the `admin` user credentials.
> Run the commands in this lab from the same directory used to generate the admin client certificates.
> Run the commands in this lab from the `jumpbox` machine.
## The Admin Kubernetes Configuration File
Each kubeconfig requires a Kubernetes API Server to connect to. To support high availability the IP address assigned to the external load balancer fronting the Kubernetes API Servers will be used.
Each kubeconfig requires a Kubernetes API Server to connect to.
You should be able to ping `server.kubernetes.local` based on the `/etc/hosts` DNS entry from a previous lap.
```bash
curl -k --cacert ca.crt \
https://server.kubernetes.local:6443/version
```
```text
{
"major": "1",
"minor": "28",
"gitVersion": "v1.28.3",
"gitCommit": "a8a1abc25cad87333840cd7d54be2efaf31a3177",
"gitTreeState": "clean",
"buildDate": "2023-10-18T11:33:18Z",
"goVersion": "go1.20.10",
"compiler": "gc",
"platform": "linux/arm64"
}
```
Generate a kubeconfig file suitable for authenticating as the `admin` user:
```
```bash
{
KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
--region $(gcloud config get-value compute/region) \
--format 'value(address)')
kubectl config set-cluster kubernetes-the-hard-way \
--certificate-authority=ca.pem \
--certificate-authority=ca.crt \
--embed-certs=true \
--server=https://${KUBERNETES_PUBLIC_ADDRESS}:6443
--server=https://server.kubernetes.local:6443
kubectl config set-credentials admin \
--client-certificate=admin.pem \
--client-key=admin-key.pem
--client-certificate=admin.crt \
--client-key=admin.key
kubectl config set-context kubernetes-the-hard-way \
--cluster=kubernetes-the-hard-way \
@@ -32,35 +49,33 @@ Generate a kubeconfig file suitable for authenticating as the `admin` user:
kubectl config use-context kubernetes-the-hard-way
}
```
The results of running the command above should create a kubeconfig file in the default location `~/.kube/config` used by the `kubectl` commandline tool. This also means you can run the `kubectl` command without specifying a config.
## Verification
Check the version of the remote Kubernetes cluster:
```
```bash
kubectl version
```
> output
```
Client Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.0", GitCommit:"cb303e613a121a29364f75cc67d3d580833a7479", GitTreeState:"clean", BuildDate:"2021-04-08T16:31:21Z", GoVersion:"go1.16.1", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"21", GitVersion:"v1.21.0", GitCommit:"cb303e613a121a29364f75cc67d3d580833a7479", GitTreeState:"clean", BuildDate:"2021-04-08T16:25:06Z", GoVersion:"go1.16.1", Compiler:"gc", Platform:"linux/amd64"}
```text
Client Version: v1.28.3
Kustomize Version: v5.0.4-0.20230601165947-6ce0bf390ce3
Server Version: v1.28.3
```
List the nodes in the remote Kubernetes cluster:
```
```bash
kubectl get nodes
```
> output
```
NAME STATUS ROLES AGE VERSION
worker-0 Ready <none> 2m35s v1.21.0
worker-1 Ready <none> 2m35s v1.21.0
worker-2 Ready <none> 2m35s v1.21.0
NAME STATUS ROLES AGE VERSION
node-0 Ready <none> 30m v1.28.3
node-1 Ready <none> 35m v1.28.3
```
Next: [Provisioning Pod Network Routes](11-pod-network-routes.md)