Setting Up an Environment with Docker Compose

1 hour
  • 2 Learning Objectives

About this Hands-on Lab

In this Live Environment, you will be creating a development environment using PHP and MySQL for a project you are working on. Because the environment is a bit sophisticated, you’ve decided that it would be easier to build it out using Docker-Compose. Create a Docker-Compose file that sets up a db and webapp container. Use volumes so that your database and PHP files will be persistent.

Learning Objectives

Successfully complete this lab by achieving the following learning objectives:

Create a Docker-Compose File
Run the Containers

Additional Resources

  1. In your root directory create your docker-compose.yml file:

    • Make sure you are using version 3.3.
    • The file will have two services: db and webapp.
    • The db will use mysql:5.7 for the image.
    • Create a volume called db_data that maps to /var/lib/mysql on the container.
    • Use restart: always to make sure the container always starts up.
    • Create the following environmental variables:
      • MYSQL_ROOT_PASSWORD: R00tP4ssw0rd
      • MYSQL_DATABASE: app_name
      • MYSQL_USER: db_user
      • MYSQL_PASSWORD: 4pp_n4meP4sswrd0!
    • The webapp will be using php:7.0-apache for the image.
  2. Create two logs:

    • Data volume app_data that maps to /var/www/html.
    • Volume for logs called app_logs that maps to /var/logs/apache2.
    • Link the db containers, webapp should always restart.
    • Finally, webapp should link to db.
  3. Once your docker-compose.yml is complete, bring the containers up and make sure they are detached.

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