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  • Book Overview & Buying Podman for DevOps
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Podman for DevOps

Podman for DevOps - Second Edition

By : Alessandro Arrichiello, Gianni Salinetti
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Podman for DevOps

Podman for DevOps

By: Alessandro Arrichiello, Gianni Salinetti

Overview of this book

Containers are transforming how modern applications are built, deployed, and scaled. Podman offers a powerful, secure alternative to Docker by eliminating the daemon and embracing rootless container execution. If you're ready to move beyond legacy workflows and gain full control over container management, this practical guide is for you. You’ll begin with container fundamentals and a side-by-side comparison of Docker and Podman to ease the transition. Then, you'll run your first container, manage its lifecycle, and use Buildah to build images from scratch. Skopeo helps you transfer and inspect images across registries. As you progress, you’ll secure your environment with rootless containers, signed images, and SELinux policies. You’ll also configure container networking, integrate workloads with systemd services, and troubleshoot issues using native Linux tools. The final chapters focus on modern developer workflows, showing how to migrate existing Docker workloads, manage containers and Kubernetes resources visually using Podman Desktop, and leverage Podman AI Lab to experiment with, run, and manage AI/ML models locally in a containerized environment. By the end of this book, you’ll be able to build, run, and secure containers, automate workflows, and confidently manage deployments across DevOps and AI-powered environments.
Table of Contents (21 chapters)
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1
Part 1: From Theory to Practice: Let's Run Our First Container with Podman
7
Part 2: Building Your Container from Scratch with Buildah
13
Part 3: Managing and Integrating Containers Securely
20
Index

8

Choosing the Container Base Image

The fastest and easiest way to learn about and get some experience with containers is to start working with pre-built container images, as we saw in the previous chapters. After a deep dive into container management, we discovered that sometimes, the available service, its configuration, or even the application version is not the one that our project requires. Then, we introduced Buildah and its feature for building custom container images. In this chapter, we are going to address another important topic that is often questioned in community and enterprise projects: the choice of a container base image.

Choosing the right container base image is an important task in the container journey: a container base image is the underlying operating system layer that our system's service, application, or code will rely on. Due to this, we should choose one that fits our best practices concerning security and updates.

In this chapter, we&apos...

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Podman for DevOps
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