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Kubernetes

Scheduling and scaling containers across machines.

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This course has 3 lessons. Start with the first one and use the next / previous links at the bottom of each lesson — the sidebar keeps the whole course in order.

Lessons

  1. Pods, Deployments and ServicesThe three objects every workload is built from, and why the indirection between them exists.
  2. ConfigMaps, Secrets and probesKeep configuration out of the image, handle credentials honestly, and let Kubernetes decide when a container is healthy.
  3. Rollouts and debuggingUpdate a Deployment without downtime, undo it in one command, and work through a broken pod methodically.

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Last refreshed 2026-09-17.