Kubernetes - Troubleshooting
A Pod is in CrashLoopBackOff because it runs a script that exits with code 1 immediately. How can you fix this in the Pod spec?
A Pod is in CrashLoopBackOff because it runs a script that exits with code 1 immediately. How can you fix this in the Pod spec?
medium📝 Debug Q7 of 15
Step-by-Step Solution
Solution:
Step 1: Understand why Pod crashes
The script exits immediately with code 1, causing container to stop and restart repeatedly.Step 2: Fix by running a persistent process
Changing the command to a long-running process prevents immediate exit and CrashLoopBackOff.Final Answer:
Modify the container command to run a long-running process instead of exiting. -> Option AQuick Check:
CrashLoopBackOff fix = run persistent process [OK]
Quick Trick: Containers must run long processes to avoid CrashLoopBackOff [OK]
Common Mistakes:
- Increasing CPU limits won't fix immediate exit
- Readiness probe doesn't prevent crash loops
- Setting restartPolicy to Never stops restarts but loses auto-recovery
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