Ghost and Wordpress using Docker on Giant Swarm

01_ghost_swarm.json

{
  "name": "oghost",
  "components": {
    "oghost": {
      "image": "ghost",
      "ports": [
        "2368/tcp"
      ],
      "domains": {
        "2368/tcp": [
          "oghost.gigantic.io"
        ]
      }
    }
  }
}

03_wordpress_swarm_json

{
  "name": "owordpress",
  "components": {
    "mysql": {
      "image": "mysql:5.5", # I want 5.5, our team (cheating here) told me it's nice and small
      "ports": [
        "3306/tcp"
      ],
      "env": [
        "MYSQL_ROOT_PASSWORD=$mypass" # This is how you hand over environment variables to the swarm, same as -e in the docker command line. The $mypass is looked up in the swarmvars.json or can be passed on the command line
      ],
      "volumes": [ # Here I am creating a bit of storage outside of the container,  so the container can restart without the data being lost
        {
          "path": "/var/lib/mysql",
          "size": "2 GB"
        }
      ]
    },
    "wordpress": {
      "image": "wordpress:latest", # I want the latest version here
      "ports": [
        "80/tcp" I tell the swarm that the container is communicating on port 80
      ],
      "env": [
        "WORDPRESS_DB_PASSWORD=$mypass" # Same as above, passing environment variables to the container
          ]
      ],
      "volumes": [ # Again storage, this time for wordpress, so that custom files like plugins or uploaded images don't get lost
        {
          "path": "/var/www/html",
          "size": "2 GB"
        }
      ],
      "domains": {
        "80/tcp": [
          "blog.thylmann.net", # This was for testing before I moved my blog completely using the next line
          "owp.gigantic.io" # Yes, I did it
        ]
      },
      "links": [ # The wordpress container should link to a MySQL container, as it doesn't work without it
        {
          "component": "mysql",
          "target_port": "3306/tcp"
        }
      ]
    }
  }
}

Possible typo report: IIUC, line 14 is missing a '$' in front of 'mypass'...although perhaps 'mypass' would also change there if you want WP accessing mysql with something other than the root password.

@KevinField, true, sorry I didn't see your comment earlier, somehow GitHub notifications suck ;)