Red Hat Certified Engineer (RHCE) Study Guide
eBook - ePub

Red Hat Certified Engineer (RHCE) Study Guide

Ansible Automation for the Red Hat Enterprise Linux 8 Exam (EX294)

  1. English
  2. ePUB (mobile friendly)
  3. Available on iOS & Android
eBook - ePub

Red Hat Certified Engineer (RHCE) Study Guide

Ansible Automation for the Red Hat Enterprise Linux 8 Exam (EX294)

About this book

Study the material in this book to prepare for the RHCE exam EX294 and to learn how using Ansible within your own environment improves system administration productivity.

This book covers all of the objectives of the exam and extends further, ensuring that you know how to use Ansible to manage Linux. The book uses CentOS, a Red Hat-based distribution, and Ubuntu instead of using a single Red Hat distribution. By using the two distributions, you will understand the power of Ansible and how easily you can deal with multiple platforms, which is crucial for your understanding of Ansible in the real world.

The book assumes no previous knowledge of Ansible but some knowledge of Linux system administration from the command line. You will learn how to manage Linux systems that are installed with different distributions, including CentOS Enterprise Linux 8 and Ubuntu 18.04. You will be able to manage these systems using ad hoc commands from the command line as well as creatingAnsible playbooks that can be replayed reliably many times. To save on the code that you have to create, you will learn how to use Ansible Galaxy to search for and download roles and collections that are pre-written to manage elements of your Linux installations. By the end of this book, you will be able to write efficient and effective YAML playbooks to manage your entire estate.

What You Will Learn

  • Prepare systems so that password-less access can be used with Ansible remotely
  • Use ad hoc commands to quickly configure systems
  • Use and format YAML files correctly
  • Create playbooks that grow in their complexity as your experience develops
  • Ensure that services are restarted on configuration changes

Who This Book Is For
Those who want to prepare for the RHCE exam EX294 and readers who want to learn how to use Ansible to improve the productivity of their system administration. This book will help you prepare yourself for the exam as well as your real-life administration needs.

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Information

Table of contents

  1. Cover
  2. Front Matter
  3. 1. Understanding Ansible and the Red Hat RHCE
  4. 2. Working with the Ansible Configuration
  5. 3. Creating an Ansible Inventory
  6. 4. Using Ad Hoc Commands and Ansible Preparation
  7. 5. Writing YAML and Basic Playbooks
  8. 6. Managing Users with Ansible Playbooks
  9. 7. Working with Variables and Facts
  10. 8. Working with Files and Templates
  11. 9. Managing Services Using Ansible
  12. 10. Securing Sensitive Data with Ansible Vault
  13. 11. Implementing a Full Apache Deployment
  14. 12. Simplifying Playbooks Using Roles
  15. 13. Downloading Roles
  16. 14. Configuring Storage with Ansible
  17. 15. Managing Scheduled Tasks with Ansible
  18. Back Matter