Book Image

OpenStack Administration with Ansible 2 - Second Edition

Book Image

OpenStack Administration with Ansible 2 - Second Edition

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. We start with a brief overview of OpenStack and Ansible 2 and highlight some best practices. Each chapter will provide an introduction to handling various Cloud Operator administration tasks such as managing containers within your cloud; setting up/utilizing open source packages for monitoring; creating multiple users/tenants; taking instance snapshots; and customizing your cloud to run multiple active regions. Each chapter will also supply a step-by-step tutorial on how to automate these tasks with Ansible 2. 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 on the market today.
Table of Contents (17 chapters)
OpenStack Administration with Ansible 2 Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Reviewing playbook and role


Let's jump right into examining the roles we created.

The completed role and file named main.yml located in the snmp-config/tasks directory looks like this:

--- 
 
 name: Install additional packages 
 apt: name="{{ item }}" state=present 
 with_items: 
  - snmpd 
   
 name: Move standard config 
 command: mv /etc/snmp/snmpd.conf /etc/snmp/snmpd.conf.org 
 
 name: Place new config file 
 template: src=snmpd.conf dest=/etc/snmp/snmpd.conf 
  
 name: Update SNMP options 
 shell: chdir=/bin sed -i 's+^SNMPDOPTS.*+SNMPDOPTS="-Lsd -Lf /dev/null -u snmp -I -smux -p /var/run/snmpd.pid -c /etc/snmp/snmpd.conf"+' /etc/default/snmpd 
 
 name: Stop SNMP service 
 command: service snmpd stop 
 
 name: Start SNMP service 
 command: service snmpd start 
  
 name: Set SNMP service to start automatically 
 command: update-rc.d snmpd defaults 

The completed role...