Manage Containers With Podman and Skopeo

Introduction

As a system administrator, you are responsible for managing containers on your Linux system. In this challenge, you will learn how to use the Podman and Skopeo tools to perform container management tasks, such as pulling, running, and inspecting containers.

Skills Graph

Pull and Run a Container Image

Tasks

• Pull the latest nginx container image from the Docker Hub registry using the podman command.
• Run the nginx container and verify that it is running.

Requirements

• Pull the nginx container image to the ~/project/containers directory.
• Run the nginx container in the background and ensure that it is accessible on port 80.

Example

After completing this step, you should be able to access the Nginx web server running in the container by visiting http://localhost in your web browser.

Inspect a Container

Tasks

• Inspect the nginx container using the podman inspect command and retrieve information about the container, such as its image, ports, and environment variables.

Requirements

• Use the podman inspect command to retrieve detailed information about the nginx container.
• Save the container inspection output to a file named nginx-inspect.json in the ~/project/containers directory.

Example

The podman inspect command will output a JSON object containing detailed information about the nginx container, including its image, ports, and environment variables.

Copy a Container Image

Tasks

• Use the skopeo tool to copy the nginx container image from the Docker Hub registry to a local container registry.

Requirements

• Copy the nginx container image from the Docker Hub registry to a local container registry hosted at localhost:5000.
• Tag the copied image as nginx:local.

Example

After completing this step, you should be able to see the nginx:local image in the local container registry.

Summary

In this challenge, you learned how to use the Podman and Skopeo tools to manage containers on your Linux system. You practiced pulling container images, running containers, inspecting container details, and copying container images to a local registry. These skills are essential for system administrators who need to manage and maintain containerized applications in a production environment.