Add RabbitMQ using Docker Compose.

# vim:ff=unix:ts=2:sw=2:ai:expandtab

---

version: '3.5'

services:

  rabbitmq:

    environment:

      RABBITMQ_DEFAULT_USER: waldorf

      RABBITMQ_DEFAULT_PASS: pass

      RABBITMQ_DEFAULT_VHOST: waldorf

      RABBITMQ_NODENAME: &rabbitmq_hostname rabbitmq

    healthcheck:

      test: ["CMD-SHELL", "rabbitmqctl status || exit 1"]

    hostname: *rabbitmq_hostname

    image: rabbitmq:3.8-management-alpine

    ports:

      - 15672:15672