My docker compose config for WordPress

Caddyfile

domain.com {
    reverse_proxy wordpress:80
}

pma.domain.com {
    reverse_proxy phpmyadmin:80
}

docker-compose.yml

version: '3.8'

services:
  db:
    image: mysql:5.7
    volumes:
      - db_data:/var/lib/mysql
    environment:
      MYSQL_ROOT_PASSWORD: wordpress
      MYSQL_DATABASE: wordpress
      MYSQL_USER: wordpress
      MYSQL_PASSWORD: wordpress

  wordpress:
    depends_on:
      - db
    image: wordpress:latest
    environment:
      WORDPRESS_DB_HOST: db:3306
      WORDPRESS_DB_USER: wordpress
      WORDPRESS_DB_PASSWORD: wordpress
    volumes:
      - wordpress_data:/var/www/html

  phpmyadmin:
    depends_on:
      - db
    ports:
      - "8080:80"
    image: phpmyadmin/phpmyadmin:latest
    environment:
      PMA_HOST: db
      MYSQL_ROOT_PASSWORD: wordpress

  caddy:
    image: caddy:latest
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - ./Caddyfile:/etc/caddy/Caddyfile
      - caddy_data:/data
      - caddy_config:/config

volumes:
  db_data: {}
  wordpress_data: {}
  caddy_data: {}
  caddy_config: {}