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.
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.
Generate a kubeconfig file suitable for authenticating as the admin
user:
KUBERNETES_PUBLIC_ADDRESS=$(az network public-ip show -g k8s-the-hard-way -n k8s-the-hard-way-ip --query ipAddress --output tsv)
kubectl config set-cluster k8s-the-hard-way \
--certificate-authority=ca.pem \
--embed-certs=true \
--server=https://${KUBERNETES_PUBLIC_ADDRESS}:6443
kubectl config set-credentials admin \
--client-certificate=admin.pem \
--client-key=admin-key.pem
kubectl config set-context k8s-the-hard-way \
--cluster=k8s-the-hard-way \
--user=admin
kubectl config use-context k8s-the-hard-way
Check the health of the remote Kubernetes cluster:
kubectl get componentstatuses
output
NAME STATUS MESSAGE ERROR
controller-manager Healthy ok
scheduler Healthy ok
etcd-1 Healthy {"health":"true"}
etcd-2 Healthy {"health":"true"}
etcd-0 Healthy {"health":"true"}
List the nodes in the remote Kubernetes cluster:
kubectl get nodes
output
NAME STATUS ROLES AGE VERSION
worker-0 Ready <none> 117s v1.24.0
worker-1 Ready <none> 118s v1.24.0
worker-2 Ready <none> 118s v1.24.0