Docker: Running multiple applications VS running multiple containers

Question

I am trying to run Wildfly , Jenkins and Postgresql in Docker container(s).

As far as I could understand from articles I've read, the Docker way is to have each application run in a different container.

Is my assumption correct or is it better to have only one container containing these three applications?

Answer 1

Afaik the basic philosophy behind docker is to run one service per container. You can run whole application inside a container, but I don't think that will go well with the way docker work. Running different services in different containers gives you more flexibility and a better modularity for your app.