docker-compose.yml

version: '3.7'

services:

  # Backend API
  skulldb-api:
    container_name: backend
    # image: node:lts  // alternatively we can use existing docker file:
    build: ./
    command: npm start
    working_dir: /usr/src/skulldb-api
    environment:
      POSTGRES_URI: postgres://sally:secret@postgres:5432/skulldb-docker
      # POSTGRES_USER: sally
      # POSTGRES_PASSWORD: secret
      # POSTGRES_DB: skulldb-docker
      # POSTGRES_HOST: postgres
      REDIS_URI: redis://redis:6379
    ports:
      - "3000:3000"
    # allows changes in PC to be directly 'passed' to running container:
    volumes:
      - ./:/usr/src/skulldb-api

  # Postgres
  postgres:
    environment:
      POSTGRES_USER: sally
      POSTGRES_PASSWORD: secret
      POSTGRES_DB: skulldb-docker
      POSTGRES_HOST: postgres
    build: ./postgres
    ports:
      - "5434:5432"

  # Redis
  redis:
    image: redis
    ports:
      - "6397:6379"