# Use postgres/example user/password credentials
version: '3.1'

services:

  db:
    image: postgres:9.6
    environment:
      POSTGRES_PASSWORD: docker
      POSTGRES_USER: docker
      POSTGRES_DB: db
    restart: always
    ports:
      - 5432:5432
    command: postgres -c config_file=/etc/postgresql/postgresql.conf
    volumes:
      - ./my-postgres.conf:/etc/postgresql/postgresql.conf