hard20 pts · first answer countsdockerkubernetesgraceful-shutdown

Container ignores SIGTERM

Pods with this image always take the full 30-second grace period to stop and are then SIGKILLed, dropping requests. What is the most likely cause?

FROM python:3.12-slim
COPY app.py .
CMD python app.py

A.Shell form CMD runs /bin/sh -c as PID 1, which does not forward SIGTERM to the Python process; use exec form CMD ["python", "app.py"] and handle SIGTERM in the app.B.The python:3.12-slim base image blocks all signals by default.C.terminationGracePeriodSeconds must be set to 0 for signals to be delivered.D.Kubernetes sends SIGINT, not SIGTERM, so Python ignores it.

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