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Oracle Linux Cookbook

You're reading from  Oracle Linux Cookbook

Product type Book
Published in Jan 2024
Publisher Packt
ISBN-13 9781803249285
Pages 548 pages
Edition 1st Edition
Languages
Authors (3):
Erik Benner Erik Benner
Profile icon Erik Benner
Erik B. Thomsen Erik B. Thomsen
Profile icon Erik B. Thomsen
Jonathan Spindel Jonathan Spindel
Profile icon Jonathan Spindel
View More author details
Toc

Table of Contents (16) Chapters close

Preface 1. Chapter 1: Oracle Linux 8 – Get It? Got It? Good! 2. Chapter 2: Installing with and without Automation Magic 3. Chapter 3: Exploring the Various Boot Options and Kernels in Oracle Linux 4. Chapter 4: Creating and Managing Single-Instance Filesystems 5. Chapter 5: Software Management with DNF 6. Chapter 6: Eliminating All the SPOFs! An Exercise in Redundancy 7. Chapter 7: Oracle Linux 8 – Patching Doesn’t Have to Mean Rebooting 8. Chapter 8: DevOps Automation Tools – Terraform, Ansible, Packer, and More 9. Chapter 9: Keeping the Data Safe – Securing a System 10. Chapter 10: Revisiting Modules and AppStreams 11. Chapter 11: Lions, Tigers, and Containers – Oh My! Podman and Friends 12. Chapter 12: Navigating Ansible Waters 13. Chapter 13: Let’s All Go to the Cloud 14. Index 15. Other Books You May Enjoy

Set it and forget it

In Ansible playbooks, loops provide flexibility and efficiency to automate Oracle Linux environments or any Linux environment through OLAM. Users can define dictionaries in their playbooks and use loop statements. Dictionaries are like books, with all your infrastructure or applications in lists, and they can be used to describe variables in an automation. This allows a set of tasks to be executed for each item in the loop, reducing the need for repetitive coding and making playbooks more concise and manageable.

For instance, if you want to install multiple packages on a group of Oracle Linux servers without loops, you would need to write separate tasks for each package and server. However, by using loops in OLAM with Ansible, you can define a list of packages and a list of servers and iterate over them, installing the packages on each server in a single task.

Getting ready

In the previous recipe, we’ve shown that OLAM has additional features and...

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