Exercises: Docker and Kubernetes

Concept Drills

• Explain image vs container.
• Explain volume vs bind mount.
• Explain Kubernetes Deployment vs Service.
• Explain readiness vs liveness probe.

Build Drills

• Write a Dockerfile for an API.
• Create a multi-stage Docker build.
• Create Docker Compose with API, database, and cache.
• Create Kubernetes manifests for API and database.
• Add ConfigMap and Secret.
• Add resource requests and limits.

Failure Drills

• Break the health check and observe behavior.
• Run out of memory with low limits.
• Misconfigure environment variables and debug.
• Simulate a crashed pod.

Output

• Dockerfile.
• Docker Compose file.
• Kubernetes manifests.
• Deployment notes.