Book Image

Implementing DevOps on AWS

By : Vaselin Kantsev
Book Image

Implementing DevOps on AWS

By: Vaselin Kantsev

Overview of this book

Knowing how to adopt DevOps in your organization is becoming an increasingly important skill for developers, whether you work for a start-up, an SMB, or an enterprise. This book will help you to drastically reduce the amount of time spent on development and increase the reliability of your software deployments on AWS using popular DevOps methods of automation. To start, you will get familiar with the concept of IaC and will learn to design, deploy, and maintain AWS infrastructure. Further on, you’ll see how to design and deploy a Continuous Integration platform on AWS using either open source or AWS provided tools/services. Following on from the delivery part of the process, you will learn how to deploy a newly created, tested, and verified artefact to the AWS infrastructure without manual intervention. You will then find out what to consider in order to make the implementation of Configuration Management easier and more effective. Toward the end of the book, you will learn some tricks and tips to optimize and secure your AWS environment. By the end of the book, you will have mastered the art of implementing DevOps practices onto AWS.
Table of Contents (17 chapters)
Implementing DevOps on AWS
About the Author
About the Reviewer
Customer Feedback
Free Chapter
What is DevOps and Should You Care?
Build, Test, and Release Faster with Continuous Integration

Chapter 3.  Bringing Your Infrastructure Under Configuration Management

As hinted at the end of the previous chapter, there is some more work to be done before we can claim to have fully implemented IaC.

The first step was to describe the hardware side of our infrastructure in code; now it is time to look at the software or configuration aspect of it.

Let us say we have provisioned a few EC2 nodes and would like to have certain packages installed on them, and relevant configuration files updated. Prior to Configuration Management (CM) tools gaining popularity, such tasks would have been performed manually by an engineer either following a checklist, running a collection of shell scripts, or both. As you can imagine, such methods do not scale well as they generally imply one engineer setting up one server at a time.

In addition, checklists or scripts:

  • Are hard to write when it comes to configuring a host plus a full application stack running on it

  • Are usually targeted at a given host or application...