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Creating a Persistent Container Volume

A key skill when working with containers is being able to attach persistent storage to them. In this scenario, one of your clients has requested you to set up 2 MySQL container instances. They have provided you with specific configuration requirements. At the end of this lab, you will have 2 MySQL database containers running with persistent storage. *This lab is not approved or sponsored by Red Hat.*

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 45m
Last updated
Clock icon Sep 03, 2025

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Table of Contents

  1. Challenge

    Pull the Requested Container Image

    Pull the docker.io/library/mysql:5.7.39 container image from the repository to the local system.

  2. Challenge

    Start the First MySQL Container

    Start the first MySQL container using the pulled image. The container should be started with a shared directory from the host system. The container should be configured with the following:

    a) Use a shared directory from the host. The directory name should be db_dir and map to the container as /var/lib/mysql.

    b) Expose container port 3306 to localhost port 33061.

    c) Set MYSQL_ROOT_PASSWORD to changeme.

  3. Challenge

    Start the Second MySQL Container

    Start the second MySQL container using the pulled image. The container should be started with a Podman-managed volume. The container should be configured with the following:

    a) Create a Podman volume named db_vol and map this to the container as /var/lib/mysql/.

    b) Expose container port 3306 to localhost port 33062.

    c) Set MYSQL_ROOT_PASSWORD to changeme.

  4. Challenge

    Verify the Containers and MySQL Are Running

    Verify that the containers and MySQL service started properly and the MySQL files are being stored in the persistent storage.

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