---

example:
  image: serfnode_example
  environment:
    ROLE: example
    CONTACT:
    ADVERTISE:
    RPC_PORT:
    NODE:
    IP:

---

example:
  image: serfnode_example
  environment:
    ROLE:
    CONTACT:
    ADVERTISE:
    RPC_PORT:
    NODE:
    IP:

Allow specifying role of example
Allow specifying role of example