Use docker-compose with docker swarm

Question

I\'m using docker 1.12.1 I have an easy docker-compose script.

version: \'2\'

services:
  jenkins-slave:
    build: ./slave
    image: jenkins         


        

Answer 1

Compose doesn't support Swarm Mode at the moment.

When you run docker compose up on the master node, Compose issues docker run commands for the services in the Compose file, rather than docker service create - which is why the containers all run on the master. See this answer for options.

On the second point, networks are scoped in 1.12. If you inspect your network you'll find it's been created at swarm-level, but Compose is running engine-level containers which can't see the swarm network.