.yaml

version: '3.8'

services:
  db:
    image: mysql:latest
    volumes:
      - db_data:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: your_mysql_root_password
      MYSQL_DATABASE: your_mysql_database_name
      MYSQL_USER: your_mysql_user
      MYSQL_PASSWORD: your_mysql_password
    deploy:
      hostname: db.example.com
      resources:
        limits:
          cpus: '1' # Assigns 1 CPU core
          memory: 1G # Assigns 1GB RAM

  wordpress_php8:
    depends_on:
      - db_php8
      - redis
    image: wordpress:latest
    volumes:
      - wordpress_data_php8:/var/www/html
    ports:
      - "8001:80"
    restart: always
    environment:
      WORDPRESS_DB_HOST: db_php8:3306
      WORDPRESS_DB_USER: your_wordpress_db_user
      WORDPRESS_DB_PASSWORD: your_wordpress_db_password
      WORDPRESS_DB_NAME: your_wordpress_db_name
    deploy:
      hostname: wordpress-php8.example.com
      resources:
        limits:
          cpus: '1' # Assigns 1 CPU core
          memory: 1G # Assigns 1GB RAM

  db_php8:
    image: mysql:latest
    volumes:
      - db_data_php8:/var/lib/mysql
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: your_mysql_root_password_php8
      MYSQL_DATABASE: your_mysql_database_name_php8
      MYSQL_USER: your_mysql_user_php8
      MYSQL_PASSWORD: your_mysql_password_php8
    deploy:
      hostname: db-php8.example.com
      resources:
        limits:
          cpus: '1' # Assigns 1 CPU core
          memory: 1G # Assigns 1GB RAM

  redis:
    image: redis:latest
    volumes:
      - redis_data:/data
    restart: always
    deploy:
      hostname: redis.example.com
      resources:
        limits:
          cpus: '0.5' # Assigns 0.5 CPU core
          memory: 512M # Assigns 512MB RAM

  ssh:
    image: alpine
    volumes:
      - db_data:/mnt/db_data
      - wordpress_data_php8:/mnt/wordpress_data_php8
      - redis_data:/mnt/redis_data
    command: sh -c "if [ ! -z \"\$ENABLE_SSH\" ]; then apk add --no-cache openssh && ssh-keygen -A && echo 'root:your_ssh_password' | chpasswd && /usr/sbin/sshd -D; else exit 0; fi"
    deploy:
      hostname: ssh.example.com
      resources:
        limits:
          cpus: '0.25' # Assigns 0.25 CPU core
          memory: 128M # Assigns 128MB RAM
    condition: service_healthy

volumes:
  db_data:
  db_data_php8:
  wordpress_data_php8:
  redis_data: