version: '3.6'

services:
  postgres:
    container_name: postgres_container
    image: postgis/postgis
    environment:
      POSTGRES_DB: ${POSTGRES_DB:-app}
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-SuperSecret}
    volumes:
      - pgdata:/var/lib/postgresql/data
    ports:
      - '5432:5432'
    networks:
      - postgres
    restart: unless-stopped

  adminer:
    image: adminer
    restart: always
    ports:
      - 8090:8080
    networks:
      - postgres

networks:
  postgres:
    driver: bridge
volumes:
  pgdata: