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 6. Continuous Deployment - A Fully Automated Workflow

Welcome to the final stage of the CI workflow - the Continuous Deployment.

We are now ready to take the AMI we produced during the Continuous Delivery step and deploy that to production.

For this process, we are going to use blue/green deployment approach. Our production environment is going to consist of ELB and two Auto scaling Groups (blue and green):

If we assume that the blue group holds our current production nodes, then upon deployment, we do the following:

  1. Attach ELB to the green group

  2. Scale the green group up using the new AMI

  3. Check for errors

  4. Scale the blue group down, effectively shifting traffic to the instances of the new AMI

As we are building on top of our existing CI pipelines, there are only a few changes we need to make to the code from the previous chapter. We need to add a few extra Terraform resources; let us take a look at those.