Docker compose for postgres and pgadmin

docker-compose.postgres.yml

version: "3.8"
services:
  postgres_db:
    container_name: postgres_container
    image: postgres
    environment:
      POSTGRES_USER: ${POSTGRES_USER:-postgres}
      POSTGRES_PASSWORD: ${POSTGRES_PASSWORD:-changeme}
      PGDATA: /data/postgres #optional
    volumes:
       - postgres_data:/var/lib/postgresql/data
    ports:
      - "5432:5432"
    networks:
      - postgres_network
    restart: unless-stopped
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U postgres"]
      interval: 10s
      timeout: 5s
      retries: 5

  pgadmin:
    container_name: pgadmin_container
    image: dpage/pgadmin4
    environment:
      PGADMIN_DEFAULT_EMAIL: ${PGADMIN_DEFAULT_EMAIL:-pgadmin4@pgadmin.org}
      PGADMIN_DEFAULT_PASSWORD: ${PGADMIN_DEFAULT_PASSWORD:-admin}
      PGADMIN_CONFIG_SERVER_MODE: 'False'
    depends_on:
      - postgres_db  
    volumes:
       - pgadmin_data:/var/lib/pgadmin
    ports:
      - "${PGADMIN_PORT:-5050}:80"
    networks:
      - postgres_network
    restart: unless-stopped

networks:
  postgres_network:
    name: postgres_network

volumes:
    postgres_data:
    pgadmin_data:

docker-postgres.md

docker run -p 5432:5432  --name postgres_container -e POSTGRES_USER:postgres POSTGRES_PASSWORD=changeme -d postgres