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Overview of the Lab

Abstract

As OpenStack popularity and complexity continue to rise and new feature sets are introduced regularly, findings ways to simplify and produce consistent results is always at the forefront of any system administrator’s mind. With the use of Ansible, an agentless IT automation technology, a system administrator can do just that.

The goal of this lab is to provide a brief introduction to Ansible, the usability of Ansible playbooks, and then show how to leverage key Ansible modules to better manage and simplify OpenStack environments. These management playbooks will consist of typical administrative tasks such as:

  • Managing Networks

  • Managing Instances

  • Managing Resources

This lab is best suited for system and OpenStack administrators looking for ways to automate their day-to-day OpenStack administrative tasks.

Environment Overview

This lab will provide a step-by-step on using several Ansible OpenStack modules to manage everyday tasks. The lab environment consists of a virtual machine running on OVH public cloud instances and the use of either the student’s laptop as a workstation with Ansible installed or running a Fedora VirtualBox image provided by the instructors.

Each student’s OVH public cloud instance consists of an RDO Project OpenStack packstack installation using CentOS as the Linux distribution. Each instance will contain a file labeled keystonerc_demo with all the credential information to use an Openstack user labeled demo within the project labeled demo.

Lab Scope

The lab exercises are intended to be small simple playbooks that effect different areas of day-to-day OpenStack administration. Each exercise will focus on a key element of OpenStack, i.e. network creation. Each lab builds upon the previous lab exercise and the lab will focus on using as many Ansible OpenStack modules whenever possible. The final lab exercise will encapsulate all the information you have learned from the previous labs and provide an opportunity to test your knowledge of managing OpenStack networks, instances and their resources.

Connectivity Details

The labs require students to be able to access the OVH instance via an ssh session, via their workstation or a VirtualBox VM running Fedora. Each student will have a specific student_id that is assigned by the instructor. This student_id is important as it is the name of your instance.

IMPORTANT: If you have not been assigned a student_id and associated IP address of the instance, please get a hold of an instructor.

The folowing tables provide specific details about the environment that is to be used.

*OpenStack Dashboard

OpenStack RC File Location

OpenStack User

Openstack Project

https://<ip_of_instance>/dashboard

/root/keystonerc_demo

demo

demo

The details of the instance including the name and IP address will be provided by the instructor during the lab.

Name of Instance

IP Address

username

<student_id>

<instructor_provided>

centos

The student’s public SSH key i.e. id_rsa.pub on their workstation will be required in order to SSH into the instance.

For documentation in how to generate a SSH key, please visit here.

To copy your SSH key into the instance you could use the ssh-copy-id command in Linux/MacOS or manually into the appropiate directory structure. The root credentials for the instance are:

Username

Password

root

OpenStack+Vancouver