Managing the Kubernetes API Server and Pods

Table of Contents

1. Challenge

   Access the terminal

   1. Sign in using the lab credentials and open the terminal.
   2. SSH to the lab VM as cloud_user and confirm the host is ready.
   3. Verify that kubectl and curl are available on the command line.
2. Challenge

   Use kubectl to interact with the Kubernetes API server

   1. Confirm cluster connectivity.
   2. Explore the API surface with kubectl commands.
   3. Create a Deployment and verify its Pods reach the Running state.
3. Challenge

   Interact with the Kubernetes API server using curl

   1. Extract the API server endpoint and client credentials from the kubeconfig.
   2. Save the client credentials as certificate and key files.
   3. Send authenticated curl requests to list API resources and Pods.
4. Challenge

   Use labels to connect workloads

   1. Inspect labels on the existing Pods.
   2. Create a standalone Pod that does not match the Deployment label set.
   3. Add and remove labels and verify membership with label selectors.
5. Challenge

   Configure Pod probes and init containers

   1. Define a Pod manifest with an init container for setup work.
   2. Configure readiness and liveness probes on the application container.
   3. Apply the Pod and verify init completion and status.