Gracefully stop docker container when shutting down Google Compute Engine VM

Question

When I delete a GCE VM I need my docker container to get stopped gracefully before the VM shuts down.

I am using Compute Engine Container Optimized OS (COS) and would expect my containers to be managed properly, but this is not what I am experiencing.

I tried a shutdown-script calling docker stop $(docker ps -a -q) but it doesn't make a difference at all. I can see it runs, but it seems the container is already gone by then.

I've tried trapping SIGTERM in my application. In the VM it's not trapping the signal, but on my local machine it does.

I am a bit lost and don't know what else to try. Any idea?

Answer 1

Take a look at Stopping Docker Containers Gracefully and also Gracefully Stopping Docker Containers