Docker swarm demo

docker-compose.yml

version: '3.2'

services:
  db:
    image: mariadb:10.6.4-focal
    command: '--default-authentication-plugin=mysql_native_password'
    volumes:
      - db_data:/var/lib/mysql
    networks:
      - my-network
    environment:
      - MYSQL_ROOT_PASSWORD=somewordpress
      - MYSQL_DATABASE=wordpress
      - MYSQL_USER=wordpress
      - MYSQL_PASSWORD=wordpress
    ports:
      - 3306:3306
      - 33060:33060

  wordpress:
    image: wordpress:latest
    ports:
      - 80:80
    networks:
      - my-network
    environment:
      - WORDPRESS_DB_HOST=db
      - WORDPRESS_DB_USER=wordpress
      - WORDPRESS_DB_PASSWORD=wordpress
      - WORDPRESS_DB_NAME=wordpress

  agent:
    image: portainer/agent:2.19.3
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
      - /var/lib/docker/volumes:/var/lib/docker/volumes
    networks:
      - my-network
    deploy:
      mode: global
      placement:
        constraints: [node.platform.os == linux]

  portainer:
    image: portainer/portainer-ce:2.19.3
    command: -H tcp://tasks.agent:9001 --tlsskipverify
    ports:
      - "9443:9443"
      - "9000:9000"
      - "8000:8000"
    volumes:
      - portainer_data:/data
    networks:
      - my-network
    deploy:
      mode: replicated
      replicas: 1
      placement:
        constraints: [node.role == manager]

volumes:
  db_data:
  portainer_data:

networks:
  my-network:
    driver: overlay
    attachable: true