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Lessons (5)

• Troubleshooting Playbook

  A repeatable method for diagnosing Pending, CrashLoopBackOff, ImagePullBackOff, OOMKilled and unreachable Services. Work from the outside in Do …

• Pods: Where Your App Actually Runs

  … is running Check readiness if traffic still fails CrashLoopBackOff App starts, crashes, and Kubernetes retries it Read previous …

• GitOps, Progressive Delivery and Observability

  … Useful cluster alerts: - Pods in CrashLoopBackOff or not ready for more than 10 minutes. - Node NotReady , disk or …

• Internals, Upgrades, Resilience and Interview Questions

  … How do you debug a pod in CrashLoopBackOff? describe for events and exit code, logs --previous for the …

• Practical Project: Deploy a Real CRM App on EKS

  … Image tag exists; node role has ECR read CrashLoopBackOff App starts then crashes repeatedly Current and --previous logs …