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Creating a Stack with Docker Compose

After a few months of debate, we’ve decided to set up a cooking blog. After researching different platforms, we've chosen Wordpress with MySQL. We have a swarm cluster already set up where we host customer sites. To make maintaining Wordpress easier, we’ve decided to set it up as a stack. We'll need to create the Docker Compose file, deploy the stack, and finish the Wordpress setup.

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Lab platform
Lab Info
Level
Advanced
Last updated
Sep 10, 2025
Duration
1h 30m

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Table of Contents
  1. Challenge

    Complete the Swarm Setup

    Get a join token:

    [cloud_user@manager]$ docker swarm join-token worker
    

    Add a worker node to the swarm:

    [cloud_user@worker]$ docker swarm join --token [TOKEN] [MANAGER_PRIVATE_IP]:2377
    
  2. Challenge

    Create the Compose File

    Create the compose file:

    [cloud_user@manager]$ vi docker-compose.yml
    

    docker-compose.yml:

    version: '3'
    
    services:
       db:
         image: mysql:5.7
         volumes:
           - db_data:/var/lib/mysql
         networks:
           mysql_internal:
             aliases: ["db"]
         environment:
           MYSQL_ROOT_PASSWORD: P4ssw0rd0!
           MYSQL_DATABASE: wordpress
           MYSQL_USER: wordpress
           MYSQL_PASSWORD: P4ssw0rd0!
    
       blog:
         depends_on:
           - db
         image: wordpress:latest
         networks:
           mysql_internal:
           wordpress_public:
         ports:
           - "80:80"
         environment:
           WORDPRESS_DB_HOST: db:3306
           WORDPRESS_DB_USER: wordpress
           WORDPRESS_DB_PASSWORD: P4ssw0rd0!
    
    volumes:
        db_data:
    networks:
      mysql_internal:
        internal: true
      wordpress_public:
    
  3. Challenge

    Create the Wordpress Blog

    Deploy the stack:

    docker stack deploy --compose-file docker-compose.yml wp
    
  4. Challenge

    Complete the Wordpress Setup

    Natviate to public IP of your manager node.

    Fill out the form and complete the setup.

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