Book Image

OpenStack Administration with Ansible

By : Walter Bentley
Book Image

OpenStack Administration with Ansible

By: Walter Bentley

Overview of this book

Most organizations are seeking methods to improve business agility because they have realized just having a cloud is not enough. Being able to improve application deployments, reduce infrastructure downtime, and eliminate daily manual tasks can only be accomplished through some sort of automation. Packed with real-world OpenStack administrative tasks, this book will walk you through working examples and explain how these tasks can be automated using one of the most popular open source automation tools—Ansible. We will start with a brief overview of OpenStack and Ansible and highlight some best practices. Each chapter will provide an introduction to handling various Cloud Operator administration tasks such as creating multiple users/tenants, setting up Multi-Tenant Isolation, customizing your clouds quotas, taking instance snapshots, evacuating compute hosts for maintenance, and running cloud health checks, and a step-by-step tutorial on how to automate these tasks with Ansible.
Table of Contents (18 chapters)
OpenStack Administration with Ansible
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Coding the playbook and roles


In this section, we will now create the playbook and roles to generate our cloud health report. Once the playbook is executed, the output and end result will be a single report with some of the monitoring checks that we reviewed in the previous section. Just as shown in the last chapter, the report can be saved into a directory of your choice. This time around, we have broken up the tasks into three roles in order to keep things simple. Let's review each role in the following sections:

cloud-infra-check

The first role that we will create will include the tasks needed to set up the foundation for the cloud health report. The name of the file will be main.yml located within the role directory named cloud-infra-check/tasks. The contents of this file will look similar to this:

---
- name: Create working directory
shell: mkdir {{ REPORT_DIR }}
ignore_errors: yes

- name: Copy the Infrastructure services check script
template: src=infra_check.sh dest={{ DEPLOY_LOC }...