Graceful pod termination

Question

I need to let the container to run 5 minutes after the kubectl \' termination. It needs to do some work before it\'s destroyed. It seems that kubernetes contain

Answer 1

You may be able to set magic sleep in 'preStop' hook.　This hook will be extecuted prior to kubectl sending SIGTERM to your container.

http://kubernetes.io/docs/user-guide/production-pods/#lifecycle-hooks-and-termination-notice

something like:

apiVersion: extensions/v1beta1
kind: Deployment
metadata:
  name: nginx
spec:
  template:
    metadata:
      labels:
        app: nginx
    spec:
      containers:
      - name: nginx
        image: nginx
        ports:
        - containerPort: 80
        lifecycle:
          preStop:
            exec:
              command: ["/bin/sleep","300"]

Answer 2

https://pracucci.com/graceful-shutdown-of-kubernetes-pods.html may this can help you.

There’re some circumstances where a SIGTERM violently kill the application, vanishing all your efforts to gracefully shutdown it. Nginx, for example, quickly exit on SIGTERM.