Most modules that ship with Ansible have differing criteria for what constitutes an error. An error condition is highly dependent upon the module and what the module is attempting to accomplish. When a module returns an error, the host will be removed from the set of available hosts, preventing any further tasks or handlers from being executed on that host. Furthermore, the ansible-playbook binary (or other Ansible executable) will exit with a nonzero exit code to indicate failure. However, we are not limited by a module's opinion of what an error is. We can ignore errors or redefine an error condition.
Mastering Ansible
By :
Mastering Ansible
By:
Overview of this book
Automation is essential for success in the modern world of DevOps. Ansible provides a simple, yet powerful, automation engine for tackling complex automation challenges.
This book will take you on a journey that will help you exploit the latest version's advanced features to help you increase efficiency and accomplish complex orchestrations. This book will help you understand how Ansible 2.7 works at a fundamental level and will also teach you to leverage its advanced capabilities. Throughout this book, you will learn how to encrypt Ansible content at rest and decrypt data at runtime. Next, this book will act as an ideal resource to help you master the advanced features and capabilities required to tackle complex automation challenges. Later, it will walk you through workflows, use cases, orchestrations, troubleshooting, and Ansible extensions. Lastly, you will examine and debug Ansible operations, helping you to understand and resolve issues.
By the end of the book, you will be able to unlock the true power of the Ansible automation engine and tackle complex, real- world actions with ease.
Table of Contents (17 chapters)
Preface
Free Chapter
Section 1: Ansible Overview and Fundamentals
The System Architecture and Design of Ansible
Protecting Your Secrets with Ansible
Ansible and Windows - Not Just for Linux
Infrastructure Management for Enterprises with AWX
Section 2: Writing and Troubleshooting Ansible Playbooks
Unlocking the Power of Jinja2 Templates
Controlling Task Conditions
Composing Reusable Ansible Content with Roles
Troubleshooting Ansible
Extending Ansible
Section 3: Orchestration with Ansible
Minimizing Downtime with Rolling Deployments
Infrastructure Provisioning
Network Automation
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