Set container stop signal to sigint

[fuggla]

Summary

Fixes timeout when stopping a wikmd container by changing the default container stop signal to SIGINT.

Details

The default signal to stop containers in Docker and Podman is SIGTERM, but flask apparently expects SIGINT. So stopping a container causes a timeout until Docker resorts to SIGKILL, which finally stops the container.

# Current container
$ time podman stop wiki
WARN[0010] StopSignal SIGTERM failed to stop container wiki in 10 seconds, resorting to SIGKILL 
wiki

real	0m10.265s

# STOPSIGNAL SIGINT
$ time podman stop wiki
wiki

real	0m0.195s

Checks

• Tested changes

[Linbreux]

Could you share some documentation about this. I never experienced problems with this :)

[fuggla]

Maybe I'm doing something wrong? This is my run command:

podman run -d  \
  --name wiki \
  --replace \
  --pull newer \
  -e TZ=$(timedatectl | grep "Time zone:" | awk '{ print $2 }') \
  -e PUID=$(id -u) \
  -e PGID=$(id -g) \
  -e LOCAL_MODE="True" \
  -e GIT_USER="foo bar" \
  -e GIT_EMAIL="[email protected]" \
  -p 5000:5000 \
  -v /home/fuggla/wiki:/wiki  \
  linbreux/wikmd:latest

• podman stop
• Flask apps cannot be gracefully stopped