Kubernetes Troubleshooting

Pending, ImagePullBackOff, CrashLoopBackOff, exit code 137, lying probes, empty Services, cluster DNS, evictions and stuck rollouts.

10 lessons · about 85 minutes

What you'll go through

• 01Events before logs: where to look, and in what order8 min
• 02The pod is Pending and nobody says why8 min
• 03The image exists and the cluster insists it does not8 min
• 04It restarts forever and the logs are already gone9 min
• 05Exit code 137 and nothing in the log8 min
• 06The health check killed a healthy application9 min
• 07The Service exists, the pods run, and it returns nothing8 min
• 08Half the lookups resolve and the other half do not9 min
• 09Pods vanished and nobody deleted them8 min
• 10Stuck at three of five, with half the traffic broken10 min

Included in this pack

Kubernetes — Containers, the Kubernetes model and how to diagnose a failing cluster. Three courses, 32 lessons.

Also in this pack

Containers

Images, layers, the build cache, volumes, networking and users — and how to build a small image that stops cleanly.

10 lessons · ~80 min$19.90

Kubernetes Fundamentals

Reconciliation, pods, deployments, services, ingress, config and secrets, requests and limits, probes, storage and RBAC.

12 lessons · ~100 min$19.90