Book Image

Ansible 2 Cloud Automation Cookbook

By : Aditya Patawari, Vikas Aggarwal
Book Image

Ansible 2 Cloud Automation Cookbook

By: Aditya Patawari, Vikas 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)

Scaling up Compose-based service

In this recipe, we will scale up our service, which we created in the recipe, Using Docker Compose to manage a service. Scaling up a Compose-based service simply means adding more containers for a particular service defined in docker-compose.yml. We will be using Ansible to scale the web service of an application. Before we jump further into this topic and scale a web service, we should understand the concept of load balancers. Usually, web applications that are horizontally scalable like ours (our web service) need a load balancer to distribute requests among all instances of the application. In our example, we have not yet created a load balancer, so we need to create a load balancer using a Docker Hub image.

How to do it...

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