docker-compose.yml

version: '3'
services:
  db:
    image: postgres:9
    environment:
      - POSTGRES_USER=deploy
      - POSTGRES_PASSWORD=weaver7
# These lines are for our application.
  web:
  # The build line causes an image to be created based on the Dockerfile and directory contents.
    build: .
  # Import environment variable settings from the .env file in the directory compose is being run on.
    env_file: .env
    environment:
      - DB_SERVICE_HOST=db_1
      - SERVER_PRODUCTION=www.802-1.org
      - HOST_PORT=:80
  # The command to run when the image is started.  Can use bash -c "string; of; commands"
  #  command: bundle exec rails s Puma -p 3100 -b '0.0.0.0'
    command: ./init.sh
    volumes:
  # When the image runs, map its /myapp file to the directory before the colon, in this case the current directory
      - .:/myapp
  # Expose the image's port 3000 as the port 3000 on the host. Format: "HOST:CONTAINER"
    ports:
      - "3000:3000"
    links:
      - db
    depends_on:
      - db