p:: Docker Compose, PostgreSQL, Docker

vim docker-compose.yml
services:
  postgres:
    image: postgres:16.3
    ports:
      - "54321:5432"
    environment:
      POSTGRES_USER: postgres
      POSTGRES_PASSWORD: postgres
    volumes:
      - ./docker/postgresql/data:/var/lib/postgresql/data

vim docker-compose.yml
services:
  postgres:
    image: postgres:16.3
    ports:
      - "5432:5432"
    environment:
      POSTGRES_USER: ${WHOAMI}
      # POSTGRES_PASSWORD: postgres
      POSTGRES_HOST_AUTH_METHOD: trust
    volumes:
      - ./docker/postgresql/data:/var/lib/postgresql/data
export WHOAMI=$(whoami)
docker-compose up