Creating a Stack with Docker Compose

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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 Info

Level

Advanced

Last updated

Sep 10, 2025

Duration

1h 30m

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

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:

Challenge

Create the Wordpress Blog

Deploy the stack:

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

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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