docker-compose.yaml

services:
  broker:
    image: rabbitmq:3.11-management-alpine
    container_name: bigchem-broker
    # Must specify hostname since data is stored based on hostname and we don't want a
    # random, docker-assigned hostname with each new restart of the service. This would
    # result in any past messages stored by the former container in the volume to be
    # unseen by the new container.
    # https://hub.docker.com/_/rabbitmq/ under "How to use this image"
    hostname: rmq-host1
    ports:
      # Open rabbit to localhost for dev container access
      - 5672:5672
      - 15672:15672
    # Only used when deployed in swarm mode
    deploy:
      placement:
        constraints:
          - "node.role==manager"
    volumes:
      - broker:/var/lib/rabbitmq

  backend:
    image: redis:7-alpine
    container_name: bigchem-backend
    ports:
      # Open redis to localhost for dev container access
      - 6379:6379
    volumes:
      - backend:/data
    # Only used when deployed in swarm mode
    deploy:
      placement:
        constraints:
          - "node.role==manager"

  worker:
    build:
      context: .
      dockerfile: docker/worker.dockerfile
    image: mtzgroup/bigchem-worker
    container_name: bigchem-worker
    depends_on:
      - broker
      - backend
    # Uncomment to use .env file for environment variables
    # env_file:
    #   - .env
    environment:
      - bigchem_broker_url=amqp://broker
      - bigchem_backend_url=redis://backend/0
      # Set concurrency to modify number of worker processes on each node
      # Set to 0 to default to the number of CPUs on your machine
      # - bigchem_worker_concurrency=1
    volumes:
      # Mount in code so service just has to be restarted instead of rebuilt
      # when code changes
      - ./bigchem:/code/bigchem
      # Mount worker volume to /tmp for scratch space
      - worker:/tmp
    # Only used when deployed in swarm mode
    deploy:
      mode: global

volumes:
  broker:
  backend:
  worker: