RHCSA - Manage Containers: Perform Container Management Using Commands Such as Podman & Skopeo
Understanding the Exam Objective
This section of the RHCSA exam focuses on container management, a critical skill in modern IT environments. While the exam objective might initially appear to include skopeo for container management, it's important to clarify the distinct roles of podman and skopeo in the context of this exam.
Podman
Podman is a tool designed for managing OCI-compliant containers and container images. In the RHCSA exam, you will be evaluated on various aspects of container management using podman. These aspects are detailed in the following exam objectives, or by continuing with the course via the navigation pane:
- Building Containers:
- Build a container from a Containerfile: Learn to create custom containers by defining the necessary components and configuration in a Containerfile.
- Basic Container Operations:
- Perform Basic Container Management: This guide covers essential container operations such as running, starting, stopping, and listing active containers.
- Running Services in Containers:
- Run a Service Inside a Container: Understand how to deploy and manage services within containers, a common use-case in containerized environments.
- Configure a Container to Start Automatically as a Systemd Service: Learn to integrate containers with systemd for automatic startup, enhancing the manageability of containerized services.
- Managing Container Storage:
- Attach Persistent Storage to a Container: Explore how to ensure data persistence in containers by attaching external storage volumes.
Skopeo
Skopeo is a separate command-line tool primarily used for operations related to container images, such as inspecting, copying, and deleting images across various storage locations. While skopeo plays a vital role in the broader container ecosystem, it is not a focus within the container management objectives of the RHCSA exam.
Preparing for the Exam
Familiarizing yourself with podman through these guides will provide a strong foundation for the container management portion of the RHCSA exam. While skopeo is not a direct part of this exam section, a basic understanding of its functionalities can be beneficial for a comprehensive understanding of container technologies.