Mesos, Docker and Consul

I was playing with Mesos/Marathon + Docker recently and tried to integrate Consul. Mesos sets the Docker container ‘name’ to a internal value that messes with the Consul Registrator, something like mesos-aa998abcabab. Registrator can accept an environmental variable telling it what service name to register as instead. The format for that is:

gistfile1.txt
curl -v -X POST http://localhost:8080/v2/apps \
  -H Content-Type:application/json -d '{
    "id": "some-nginx",
      "container": {
        "docker": {
          "parameters" : {
            "env": "SERVICE_NAME=nginx-xyz"
          },
        "image": "nginx",
        "network": "BRIDGE",
        "portMappings": [
          { "containerPort": 80, "hostPort": 0, "protocol": "tcp" }
        ]
      },
      "type": "DOCKER",
      "volumes": []
      },
    "cpus": 0.2,
    "mem": 128.0,
    "instances": 1
  }' 

Registrator will register the instance with a service name of nginx-xyz