docker-compose.yml

version: '3.3'

services:
  app:
    build:
      context: services/app
      dockerfile: Dockerfile.dev
    working_dir: /app
    env_file: .env
    command: mix phx.server
    environment:
      - 'USER=${USER}'
    ports:
      - '${CODEBATTLE_PORT}:${CODEBATTLE_PORT}'
      - '8080:8080'
    volumes:
      - './services/app:/app:delegated'
      - '~/.bash_history:/root/.bash_history:delegated'
      - '.bashrc:/root/.bashrc:delegated'
      - '/var/run/docker.sock:/var/run/docker.sock:cached'
      - '/var/tmp:/var/tmp:delegated'
      - '/tmp:/tmp:delegated'
    depends_on:
      - db

  db:
    image: postgres:12-alpine
    environment:
      POSTGRES_USER: ${CODEBATTLE_DB_USERNAME}
      POSTGRES_PASSWORD: ${CODEBATTLE_DB_PASSWORD}
    volumes:
      - pg_data:/var/lib/postgresql/data

  # same db but forwards port to host
  db-local:
    image: postgres:12-alpine
    ports:
      - '5432:${CODEBATTLE_DB_PORT}'
    environment:
      POSTGRES_USER: ${CODEBATTLE_DB_USERNAME}
      POSTGRES_PASSWORD: ${CODEBATTLE_DB_PASSWORD}
    command: postgres -c 'max_connections=1000'
    volumes:
      - pg_data:/var/lib/postgresql/data

volumes:
  pg_data: