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Managing Pods Using Podman on RHEL

Unlike Docker’s single-container concept, Podman brings the ability to run multiple containers in a pod. In this lab, we will examine how to manage multiple containers as part of a pod. Upon completion of this lab, you will be able to use Podman to manage pods.

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Path Info

Level
Clock icon Intermediate
Duration
Clock icon 1h 0m
Last updated
Clock icon Aug 16, 2025

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Table of Contents

  1. Challenge

    Run a Rootless Pod

    Perform the following tasks as a non-root user:

    • Check for existing rootless containers and pods.
    • Create a pod named wp-pod, with port 80 in the pod published to 8080 on the host.
    • Check again for pods and containers, and confirm that you see an Infra container.
    • Start the mariadb container:
      • Name the container wp-db
      • Add the container to the wp-pod pod
      • Set --restart=always
      • Use the mariadb short name for the container image
      • Set the following environment variables:
        • MYSQL_ROOT_PASSWORD="dbpass"
        • MYSQL_DATABASE="wp"
        • MYSQL_USER="wordpress"
        • MYSQL_PASSWORD="wppass"
    • Check for containers again, and confirm that you see the mariadb container.
    • Start the WordPress container:
      • Name the container wp-web
      • Add the container to the wp-pod pod
      • Set --restart=always
      • Use the wordpress short name for the container image
      • Set the following environment variables:
        • WORDPRESS_DB_NAME="wp"
        • WORDPRESS_DB_USER="wordpress"
        • WORDPRESS_DB_PASSWORD="wppass"
        • WORDPRESS_DB_HOST="127.0.0.1"
    • Check for containers again, and confirm that you see the Wordpress container.
    • Check connectivity with a curl command on localhost:8080. Since nothing is returned, immediately check the exit code and confirm it is 0.
    • In a web browser, connect to the lab server's public IP address or DNS name on port 8080 and confirm that the Wordpress page is functional.

  2. Challenge

    Run a Rootfull Pod

    Perform the following tasks as the root user:

    • Become the root user.
    • Check for existing rootfull containers and pods.
    • Create a pod named root-wp-pod, with port 80 in the pod published to 8081 on the host.
    • Check again for pods and containers, and confirm that you see an Infra container.
    • Start the mariadb container:
      • Name the container root-wp-db
      • Add the container to the root-wp-pod pod
      • Set --restart=always
      • Use the mariadb short name for the container image
      • Set the following environment variables:
        • MYSQL_ROOT_PASSWORD="dbpass"
        • MYSQL_DATABASE="wp"
        • MYSQL_USER="wordpress"
        • MYSQL_PASSWORD="wppass"
    • Check for containers again, and confirm that you see the mariadb container.
    • Start the WordPress container:
      • Name the container root-wp-web
      • Add the container to the root-wp-pod pod
      • Set --restart=always
      • Use the wordpress short name for the container image
      • Set the following environment variables:
        • WORDPRESS_DB_NAME="wp"
        • WORDPRESS_DB_USER="wordpress"
        • WORDPRESS_DB_PASSWORD="wppass"
        • WORDPRESS_DB_HOST="127.0.0.1"
    • Check for containers again, and confirm that you see the Wordpress container.
    • Check connectivity with a curl command on localhost:8081. Since nothing is returned, immediately check the exit code and confirm it is 0.
    • In a web browser, connect to the lab server's public IP address or DNS name on port 8081 and confirm that the Wordpress page is functional.

  3. Challenge

    Manage a Rootless Pod

    Perform the following tasks as a non-root user:

    • Check for any containers and pods that are running, which should include the wp-pod pod and its containers.
    • Stop the wp-pod pod, along with its containers.
    • Check the pods and containers again, and confirm that they have been stopped.
    • Start the wp-pod pod, along with all its containers.
    • Check the pods and containers again, and confirm that they have been started.
    • Restart the wp-pod pod, along with all its containers.
    • Check the pods and containers again, and confirm that they have been restarted.
    • Get information about the wp-pod pod.
    • List the wp-pod pod's processes.
    • Kill and remove the wp-pod pod and its containers.
    • Check the pods and containers again, and confirm that they have been removed.
    • Clean up any reclaimable space using podman system commands, and confirm it has been cleaned up.

  4. Challenge

    Manage a Rootfull Pod

    Perform the following tasks as the root user:

    • Become the root user.
    • Check for any containers and pods that are running, which should include the root-wp-pod pod and its containers.
    • Pause the root-wp-pod pod, along with its containers.
    • Check the pods and containers again, and confirm that they have been paused.
    • Unpause the root-wp-pod pod.
    • Check the pods and containers again, and confirm that they have been unpaused.
    • Pull performance statistics for the root-wp-pod pod and its containers.
    • Stop the root-wp-pod pod.
    • Clean up any reclaimable space using podman system and podman pod commands, and confirm it has been cleaned up.
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