Kubernetes Pod CrashLoopBackOff Fix

Seeing CrashLoopBackOff usually means your container starts, crashes, Kubernetes restarts it, and then backs off (waits longer each time) because it keeps failing. It’s not a “Kubernetes is broken” error—it's Kubernetes telling you the container cannot stay healthy long enough to run.

The fastest way to fix it is to treat it like a loop you need to break: find what causes the crash, confirm whether Kubernetes health checks are making it worse, and then test a change with minimal variables.

Confirm what is crashing (and how often)

Start by verifying which container is crashing and what Kubernetes thinks happened:

kubectl get pods
kubectl describe pod <pod-name>

In describe, focus on:

• Container state (Terminated reason, exit code)
• Last State (previous crash details)
• Events (pull errors, probe failures, OOM kills)

This often tells you whether it’s an application crash, a misconfigured probe, or a resource issue.

Read logs from the last crashed container (the “previous” trick)

If the container restarts quickly, normal logs may show only the latest attempt. Use --previous to fetch logs from the last crash:

kubectl logs <pod-name> --previous

If the pod has multiple containers