docker compose build sibling container

[zewa666]

hey there, interesting project. I was looking for a solution exactly like this but with an additional use cases. running the listener inside a docker container, part of the same docker-compose file, a sibling container (nginx) needs to be rebuilt on a trigger.

with local install I guess it should be possible since I'd execute a bash script with the rebuild but do you have any ideas how to do it from within a container->host?

[alexandru]

Not sure what you're trying to do, but in my setup I'm triggering an Nginx restart by doing this from inside my Docker's listener:

touch /var/run/vm-reload/vm-reload-nginx-config

Then I have this script set up in cron.d on the host:

#!/usr/bin/env bash

set -e

NGINX_RELOAD_FILE="/var/run/vm-reload/vm-reload-nginx-config"

if [ ! -d /var/run/vm-reload ]; then
  mkdir -p /var/run/vm-reload
  chown -R root:docker /var/run/vm-reload
  chmod -R ug+rw /var/run/vm-reload
fi

if [ -f "$NGINX_RELOAD_FILE" ]; then
  echo "------------------------------"
  echo "Reloading Nginx configuration"
  date
  echo

  rm "$NGINX_RELOAD_FILE"
  /usr/sbin/service nginx configtest && /usr/sbin/service nginx reload
fi

And then in /etc/cron.d/my-stuff:

*/1  * * * * root  /path/to/maybe-restart-services 

So it's set to run every minute. This way I can push Nginx config changes via a git push.