Introduction
In this challenge, you will need to perform a comprehensive health check of a Kubernetes cluster as a junior DevOps engineer. This involves starting the Minikube Kubernetes cluster, retrieving and displaying the list of nodes, and verifying the cluster's basic information using kubectl cluster-info. The cluster must have at least one node in the Ready status to pass the verification.
Verify Minikube Cluster
As a junior DevOps engineer, you'll need to perform a comprehensive health check of the Kubernetes cluster to ensure all critical components are operational and ready for deployment.
Tasks
- Start the Minikube Kubernetes cluster (Free users can skip this task because the cluster is already pre-started)
- Retrieve and display the list of nodes in the cluster
- Verify the cluster's basic information using
kubectl cluster-info
Requirements
- Use Minikube to start the Kubernetes cluster
- Ensure you are working in the
~/projectdirectory - Use
kubectlcommands to inspect the cluster - The cluster must have at least one node in
Readystatus
Examples
Example of expected node output:
NAME STATUS ROLES AGE VERSION
minikube Ready control-plane 5m v1.20.0
Example of cluster info output:
Kubernetes control plane is running at https://192.168.49.2:8443
CoreDNS is running at https://192.168.49.2:8443/api/v1/namespaces/kube-system/services/kube-dns:dns/proxy
Hints
- Remember to start Minikube before running
kubectlcommands - Use
kubectl get nodesto list cluster nodes - Use
kubectl cluster-infoto get cluster details - Check the node status to ensure the cluster is healthy
Summary
In summary, this challenge requires you to verify the health of a Kubernetes cluster by starting the Minikube cluster, retrieving the list of nodes, and checking the cluster's basic information. The key requirements are to use Minikube to start the cluster, work in the ~/project directory, and ensure the cluster has at least one node in the Ready status.
