Book Image

Oracle Linux Cookbook

By : Erik Benner, Erik B. Thomsen, Jonathan Spindel
Book Image

Oracle Linux Cookbook

By: Erik Benner, Erik B. Thomsen, Jonathan Spindel

Overview of this book

Discover the power of Oracle Linux 8, the free and enterprise-grade Linux distribution designed for use in any environment, with this recipe-style book. Starting with instructions on how to obtain Oracle Linux for both X86 and ARM-based platforms, this book walks you through various installation methods, from running it as a Windows service to installing it on a Raspberry Pi. It unravels advanced topics such as system upgrades using Leapp for major version transitions and using a PXE server and kickstart files for more advanced installations. The book then delves into swapping kernels to take advantage of Oracle’s UEK, exploring boot options, managing software with DNF, and achieving high availability. Detailed recipes involving security topics will assist with tasks such as data encryption, both at rest and in motion. For developers, it offers guidance on building RPM files, using Docker and Podman in a containerized environment, working with AppStreams, and more. For large-scale deployments, the book introduces Oracle Linux Automation Manager for enterprise-level Ansible utilization, from setting up the Ansible server to basic playbook writing. Finally, you’ll discover strategies for cloud migration. By the end of this book, you’ll possess a comprehensive toolkit that will elevate your skills as a Linux administrator.
Table of Contents (16 chapters)

Installing OLAM

Since the dawn of time we, as the human race, have tried to make things easier, quicker, and more efficient. However, I’m sure most of us have heard from our parents, “Never take shortcuts," or “When I was a kid, I had to walk to and from school uphill, in the snow, with one leg, both ways.” These anecdotes really never change; they evolve as we get to our parent’s age, and we try to pass on our wisdom to the next generation. Well, what if I told you that you could have your cake and eat it too? Automation is the evolution of computing and the automation of repeatable tasks. Now, of course, we can’t automate everything, and there are certain tasks that aren’t worth the effort to automate, because they’re not repeatable or the factors change to the point that automation would break the process.

The dictionary definition of automation is “the application of technology, programs, robotics, or process...