Does Doco-CD handle service dependencies?

[danroc]

I’m trying to understand whether Doco respects service dependencies. I have an application that depends on Postgres (it uses depends_on in the compose file), and I’ve noticed that when the database container is recreated by Doco, the main application isn’t stopped then restarted afterward.

Is this the expected behavior? Does Doco support dependency-aware restarts, or is there a recommended way to ensure dependent services are cycled correctly when their dependencies are updated?

[kimdre]

This is something that gets handled by the Docker daemon. Doco-cd only passes the compose configuration to the Docker API.

You can try to set the restart option, that might work:

depends_on:
      db:
        condition: service_healthy
        restart: true

[danroc]

Thanks, @kimdre. Indeed, the restart option was what was missing in my config. It’s strange that the service would be recreated when I was manually updating using docker compose pull && docker compose up -d --remove-orphans.