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.
