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Mastering Ansible, 4th Edition - Fourth Edition

You're reading from  Mastering Ansible, 4th Edition - Fourth Edition

Product type Book
Published in Dec 2021
Publisher Packt
ISBN-13 9781801818780
Pages 540 pages
Edition 4th Edition
Languages
Authors (2):
James Freeman James Freeman
Profile icon James Freeman
Jesse Keating Jesse Keating
Profile icon Jesse Keating
View More author details

Table of Contents (18) Chapters

Preface 1. Section 1: Ansible Overview and Fundamentals
2. Chapter 1: The System Architecture and Design of Ansible 3. Chapter 2: Migrating from Earlier Ansible Versions 4. Chapter 3: Protecting Your Secrets with Ansible 5. Chapter 4: Ansible and Windows – Not Just for Linux 6. Chapter 5: Infrastructure Management for Enterprises with AWX 7. Section 2: Writing and Troubleshooting Ansible Playbooks
8. Chapter 6: Unlocking the Power of Jinja2 Templates 9. Chapter 7: Controlling Task Conditions 10. Chapter 8: Composing Reusable Ansible Content with Roles 11. Chapter 9: Troubleshooting Ansible 12. Chapter 10: Extending Ansible 13. Section 3: Orchestration with Ansible
14. Chapter 11: Minimizing Downtime with Rolling Deployments 15. Chapter 12: Infrastructure Provisioning 16. Chapter 13: Network Automation 17. Other Books You May Enjoy

Defining a failure

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 and ansible executables will exit with a non-zero 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.

Ignoring errors

A task condition named ignore_errors is used to ignore errors. This condition is a Boolean, meaning that the value should be something Ansible understands to be true, such as yesontrue, or 1 (string or integer).

To demonstrate how to use ignore_errors, let's create...

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