Book Image

Ansible 2 Cloud Automation Cookbook

By : Patawari, Aggarwal
Book Image

Ansible 2 Cloud Automation Cookbook

By: Patawari, Aggarwal

Overview of this book

Ansible has a large collection of inbuilt modules to manage various cloud resources. The book begins with the concepts needed to safeguard your credentials and explain how you interact with cloud providers to manage resources. Each chapter begins with an introduction and prerequisites to use the right modules to manage a given cloud provider. Learn about Amazon Web Services, Google Cloud, Microsoft Azure, and other providers. Each chapter shows you how to create basic computing resources, which you can then use to deploy an application. Finally, you will be able to deploy a sample application to demonstrate various usage patterns and utilities of resources.
Table of Contents (11 chapters)

Creating managed instance groups

Traditionally, we have managed virtual machines individually. Instance groups let us manage a group of identical virtual machines as a single entity. These virtual machines are created from an instance template, like the one which we created in the previous tip. Now, if we have to make a change in instance configuration, that change would be applied to all the instances in the group.

How to do it...

Perhaps, the most important feature of an instance group is auto-scaling. In event of high resource requirements, the instance group can scale up to a predefined number automatically:

- name: create an instance group with autoscaling
gce_mig:
name: app-mig
zone: "{{ zone }}"
...