docker-compose.yml

version: "3"
services:
  postgres:
    image: postgres:11.2-alpine
    environment:
      POSTGRES_PASSWORD: '!abcd1234'
      POSTGRES_USER: purplecow
      POSTGRES_DB: purple_cow
    volumes:
      - ./postgres-data:/var/lib/postgresql/data
    ports:
      - "5432:5432"
  web:
    build: .
    depends_on:
      - postgres
    ports:
      - "3000:3000"
    environment:
      DATABASE_URL: postgres://purplecow@postgres:5432/purple_cow
    restart: on-failure
    command: ["./scripts/wait-for-it.sh","postgres:5432","--", "yarn", "start"]