Book Image

Podman for DevOps

By : Alessandro Arrichiello, Gianni Salinetti
Book Image

Podman for DevOps

By: Alessandro Arrichiello, Gianni Salinetti

Overview of this book

As containers have become the new de facto standard for packaging applications and their dependencies, understanding how to implement, build, and manage them is now an essential skill for developers, system administrators, and SRE/operations teams. Podman and its companion tools Buildah and Skopeo make a great toolset to boost the development, execution, and management of containerized applications. Starting with the basic concepts of containerization and its underlying technology, this book will help you get your first container up and running with Podman. You'll explore the complete toolkit and go over the development of new containers, their lifecycle management, troubleshooting, and security aspects. Together with Podman, the book illustrates Buildah and Skopeo to complete the tools ecosystem and cover the complete workflow for building, releasing, and managing optimized container images. Podman for DevOps provides a comprehensive view of the full-stack container technology and its relationship with the operating system foundations, along with crucial topics such as networking, monitoring, and integration with systemd, docker-compose, and Kubernetes. By the end of this DevOps book, you'll have developed the skills needed to build and package your applications inside containers as well as to deploy, manage, and integrate them with system services.
Table of Contents (19 chapters)
1
Section 1: From Theory to Practice: Running Containers with Podman
7
Section 2: Building Containers from Scratch with Buildah
12
Section 3: Managing and Integrating Containers Securely

Choosing an operating system and installation method

Podman is supported on different distributions and operating systems. It is very easy to install, and the various distributions now provide their own maintained packages that can be installed with their specific package managers.

In this section, we will cover the different installation steps for the most common GNU/Linux distributions, as well as on macOS and Windows, despite the focus of this book being on Linux-based environments.

As a bonus topic, we will also learn how to build Podman directly from source.

Choosing between Linux distributions and another OS

The choice between the different distributions of the GNU/Linux operating system is something that is dictated by the user’s preferences and needs, which are usually influenced by several factors that are outside the scope of this book.

Many advanced users today choose Linux distributions as their main operating systems. However, there is a large quota...