Create kubeconfig files
parent
17ddcfbbcd
commit
b1b692b0b2
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@ -12,15 +12,21 @@ Each kubeconfig requires a Kubernetes API Server to connect to. To support high
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Retrieve the `kubernetes-the-hard-way` static IP address:
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```gcloud```
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```
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KUBERNETES_PUBLIC_ADDRESS=$(gcloud compute addresses describe kubernetes-the-hard-way \
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--region $(gcloud config get-value compute/region) \
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--format 'value(address)')
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```
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```az```
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```
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KUBERNETES_PUBLIC_ADDRESS=$(az network public-ip show --name kubernetes-the-hard-way --query ipAddress -o tsv)
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```
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### The kubelet Kubernetes Configuration File
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When generating kubeconfig files for Kubelets the client certificate matching the Kubelet's node name must be used. This will ensure Kubelets are properly authorized by the Kubernetes [Node Authorizer](https://kubernetes.io/docs/admin/authorization/node/).
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When generating kubeconfig files for Kubelets the client certificate matching the Kubelet's node name must be used. This will ensure Kubelets are properly authorized by the Kubernetes [Node Authorizer](https://kubernetes.io/docs/reference/access-authn-authz/node/).
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> The following commands must be run in the same directory used to generate the SSL certificates during the [Generating TLS Certificates](04-certificate-authority.md) lab.
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@ -62,26 +68,24 @@ worker-2.kubeconfig
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Generate a kubeconfig file for the `kube-proxy` service:
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```
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{
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kubectl config set-cluster kubernetes-the-hard-way \
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kubectl config set-cluster kubernetes-the-hard-way \
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--certificate-authority=ca.pem \
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--embed-certs=true \
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--server=https://${KUBERNETES_PUBLIC_ADDRESS}:6443 \
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--kubeconfig=kube-proxy.kubeconfig
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kubectl config set-credentials system:kube-proxy \
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kubectl config set-credentials system:kube-proxy \
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--client-certificate=kube-proxy.pem \
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--client-key=kube-proxy-key.pem \
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--embed-certs=true \
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--kubeconfig=kube-proxy.kubeconfig
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kubectl config set-context default \
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kubectl config set-context default \
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--cluster=kubernetes-the-hard-way \
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--user=system:kube-proxy \
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--kubeconfig=kube-proxy.kubeconfig
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kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
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}
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kubectl config use-context default --kubeconfig=kube-proxy.kubeconfig
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```
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Results:
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@ -95,26 +99,24 @@ kube-proxy.kubeconfig
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Generate a kubeconfig file for the `kube-controller-manager` service:
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```
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{
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kubectl config set-cluster kubernetes-the-hard-way \
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kubectl config set-cluster kubernetes-the-hard-way \
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--certificate-authority=ca.pem \
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--embed-certs=true \
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--server=https://127.0.0.1:6443 \
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--kubeconfig=kube-controller-manager.kubeconfig
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kubectl config set-credentials system:kube-controller-manager \
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kubectl config set-credentials system:kube-controller-manager \
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--client-certificate=kube-controller-manager.pem \
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--client-key=kube-controller-manager-key.pem \
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--embed-certs=true \
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--kubeconfig=kube-controller-manager.kubeconfig
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kubectl config set-context default \
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kubectl config set-context default \
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--cluster=kubernetes-the-hard-way \
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--user=system:kube-controller-manager \
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--kubeconfig=kube-controller-manager.kubeconfig
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kubectl config use-context default --kubeconfig=kube-controller-manager.kubeconfig
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}
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kubectl config use-context default --kubeconfig=kube-controller-manager.kubeconfig
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```
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Results:
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@ -129,26 +131,24 @@ kube-controller-manager.kubeconfig
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Generate a kubeconfig file for the `kube-scheduler` service:
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```
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{
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kubectl config set-cluster kubernetes-the-hard-way \
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kubectl config set-cluster kubernetes-the-hard-way \
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--certificate-authority=ca.pem \
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--embed-certs=true \
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--server=https://127.0.0.1:6443 \
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--kubeconfig=kube-scheduler.kubeconfig
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kubectl config set-credentials system:kube-scheduler \
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kubectl config set-credentials system:kube-scheduler \
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--client-certificate=kube-scheduler.pem \
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--client-key=kube-scheduler-key.pem \
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--embed-certs=true \
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--kubeconfig=kube-scheduler.kubeconfig
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kubectl config set-context default \
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kubectl config set-context default \
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--cluster=kubernetes-the-hard-way \
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--user=system:kube-scheduler \
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--kubeconfig=kube-scheduler.kubeconfig
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kubectl config use-context default --kubeconfig=kube-scheduler.kubeconfig
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}
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kubectl config use-context default --kubeconfig=kube-scheduler.kubeconfig
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```
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Results:
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@ -162,26 +162,24 @@ kube-scheduler.kubeconfig
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Generate a kubeconfig file for the `admin` user:
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```
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{
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kubectl config set-cluster kubernetes-the-hard-way \
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kubectl config set-cluster kubernetes-the-hard-way \
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--certificate-authority=ca.pem \
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--embed-certs=true \
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--server=https://127.0.0.1:6443 \
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--kubeconfig=admin.kubeconfig
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kubectl config set-credentials admin \
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kubectl config set-credentials admin \
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--client-certificate=admin.pem \
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--client-key=admin-key.pem \
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--embed-certs=true \
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--kubeconfig=admin.kubeconfig
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kubectl config set-context default \
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kubectl config set-context default \
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--cluster=kubernetes-the-hard-way \
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--user=admin \
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--kubeconfig=admin.kubeconfig
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kubectl config use-context default --kubeconfig=admin.kubeconfig
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}
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kubectl config use-context default --kubeconfig=admin.kubeconfig
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```
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Results:
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@ -197,18 +195,39 @@ admin.kubeconfig
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Copy the appropriate `kubelet` and `kube-proxy` kubeconfig files to each worker instance:
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```gcloud```
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```
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for instance in worker-0 worker-1 worker-2; do
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gcloud compute scp ${instance}.kubeconfig kube-proxy.kubeconfig ${instance}:~/
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done
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```
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```az```
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```
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for instance in worker-0 worker-1 worker-2; do
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IP=$(az vm show -d --name ${instance} --query "publicIps" -o tsv)
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scp ${instance}.kubeconfig azureuser@${IP}:/home/azureuser
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scp kube-proxy.kubeconfig azureuser@${IP}:/home/azureuser
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done
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```
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Copy the appropriate `kube-controller-manager` and `kube-scheduler` kubeconfig files to each controller instance:
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```gcloud```
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```
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for instance in controller-0 controller-1 controller-2; do
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gcloud compute scp admin.kubeconfig kube-controller-manager.kubeconfig kube-scheduler.kubeconfig ${instance}:~/
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done
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```
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```az```
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```
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for instance in controller-0 controller-1 controller-2; do
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IP=$(az vm show -d --name ${instance} --query "publicIps" -o tsv)
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scp admin.kubeconfig azureuser@${IP}:/home/azureuser
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scp kube-controller-manager.kubeconfig azureuser@${IP}:/home/azureuser
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scp kube-scheduler.kubeconfig azureuser@${IP}:/home/azureuser
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done
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```
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Next: [Generating the Data Encryption Config and Key](06-data-encryption-keys.md)
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