Book Image

Red Hat Enterprise Linux 9 Administration - Second Edition

By : Pablo Iranzo Gómez, Pedro Ibáñez Requena, Miguel Pérez Colino, Scott McCarty
2 (2)
Book Image

Red Hat Enterprise Linux 9 Administration - Second Edition

2 (2)
By: Pablo Iranzo Gómez, Pedro Ibáñez Requena, Miguel Pérez Colino, Scott McCarty

Overview of this book

With Red Hat Enterprise Linux 9 becoming the standard for enterprise Linux used from data centers to the cloud, Linux administration skills are in high demand. With this book, you’ll learn how to deploy, access, tweak, and improve enterprise services on any system on any cloud running Red Hat Enterprise Linux 9. Throughout the book, you’ll get to grips with essential tasks such as configuring and maintaining systems, including software installation, updates, and core services. You’ll also understand how to configure the local storage using partitions and logical volumes, as well as assign and deduplicate storage. You’ll learn how to deploy systems while also making them secure and reliable. This book provides a base for users who plan to become full-time Linux system administrators by presenting key command-line concepts and enterprise-level tools, along with essential tools for handling files, directories, command-line environments, and documentation for creating simple shell scripts or running commands. With the help of command line examples and practical tips, you’ll learn by doing and save yourself a lot of time. By the end of the book, you’ll have gained the confidence to manage the filesystem, users, storage, network connectivity, security, and software in RHEL 9 systems on any footprint.
Table of Contents (26 chapters)
1
Part 1 – Systems Administration – Software, User, Network, and Services Management
9
Part 2 – Security with SSH, SELinux, a Firewall, and System Permissions
14
Part 3 – Resource Administration – Storage, Boot Process, Tuning, and Containers
21
Part 4 – Practical Exercises

Managing Containers with Podman, Buildah, and Skopeo

In this chapter, we’ll learn how to use Podman and Red Hat Universal Base Image, also called UBI. Together, Podman and UBI provide users with the software they need to run, build, and share enterprise-quality containers on Red Hat Enterprise Linux (RHEL).

In recent years, being able to understand and use containers has become a key requirement for Red Hat system administrators. In this chapter, we’ll review the basics of containers, how containers work, and the standard tasks for managing containers.

You will also learn how to run containers with simple commands, build enterprise-quality container images, and deploy them on a production system. Finally, you will learn when to use more advanced tools such as Buildah and Skopeo.

In this chapter, we will cover the following topics:

  • Introduction to containers
  • Running a container using Podman and UBI
  • When to use Buildah and Skopeo