Podman for DevOps

Build, deploy, and manage containers with the next-generation engine and tools

Key Features

• Discover key differences between Docker and Podman
• Build brand new container images with Buildah, the Podman companion
• Learn how to manage and integrate containers securely in your existing infrastructure

Book Description

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.

What you will learn

• Understand Podman's daemonless approach as a container engine
• Run, manage, and secure containers with Podman
• Discover the strategies, concepts, and command-line options for using Buildah to build containers from scratch
• Manage OCI images with Skopeo
• Troubleshoot runtime, build, and isolation issues
• Integrate Podman containers with existing networking and system services

Who this book is for

The book is for cloud developers looking to learn how to build and package applications inside containers and system administrators who want to deploy, manage, and integrate them with system services and orchestration solutions. This book provides a detailed comparison between Docker and Podman to aid you in learning Podman quickly.

Table of Contents

1. Introduction to Container Technology
2. Comparing Podman and Docker
3. Running the First Container
4. Managing Running Containers
5. Implementing Storage for the Container
6. Meet Buildah
7. Integrating with Existing Application Build Processes
8. Choosing the Container Base Image
9. Pushing Images to a Container Registry
10. Troubleshooting and Monitoring Containers
11. Securing Containers
12. Implementing Container Networking concepts
13. Docker Migration Tips and Tricks
14. Interacting with systemd and Kubernetes

Alessandro Arrichiello is a Solution Architect for Red Hat Inc. with a special focus on Telco technologies. He has a passion for GNU/Linux systems, which began at age 14 and continues today. He has worked with tools for automating Enterprise IT: configuration management and continuous integration through virtual platforms. Alessandro is also a writer for the Red Hat Developer Blog on which he authored several articles about container architecture and technology. He’s now helping telecommunication customers on adopting container orchestration environments like Red Hat OpenShift and Kubernetes, Infrastructure as a Service like OpenStack, Edge Computing and Datacenter Automation.

Gianni Salinetti is a Solution Architect from Rome working for Red Hat Inc. with a special focus on cloud-native computing and hybrid cloud strategies. He started working with GNU/Linux back in 2001 and developed a passion for Open Source software. His main fields of interest are application orchestration, automation, and systems performance tuning. He is also an advocate of DevSecOps and GitOps practices. He was a former Red Hat Instructor, teaching many classes about GNU/Linux, OpenStack, JBoss middleware, Ansible, Kubernetes and Red Hat OpenShift. He won Red Hat EMEA awards as best DevOps, cloud, and middleware instructor. He is also an author for the Red Hat Developer Blog and actively contributes to webinars and events.