Book Image

Effective DevOps with AWS

By : Nathaniel Felsen
Book Image

Effective DevOps with AWS

By: Nathaniel Felsen

Overview of this book

The DevOps movement has transformed the way modern tech companies work. AWS which has been on the forefront of the Cloud computing revolution has also been a key contributor of this DevOps movement creating a huge range of managed services that help you implement the DevOps principles. In this book, you’ll see how the most successful tech start-ups launch and scale their services on AWS and how you can too. Written by a lead member of Mediums DevOps team, this book explains how to treat infrastructure as code, meaning you can bring resources online and offline as necessary with the code as easily as you control your software. You will also build a continuous integration and continuous deployment pipeline to keep your app up to date. You’ll find out how to scale your applications to offer maximum performance to users anywhere in the world, even when traffic spikes with the latest technologies, such as containers and serverless computing. You will also take a deep dive into monitoring and alerting to make sure your users have the best experience when using your service. Finally, you’ll get to grips with ensuring the security of your platform and data.
Table of Contents (9 chapters)

Scaling a monolithic application

While at a larger scale, most applications have a unique architecture, they usually start the same way as our Hello World app with a simple monolith.

There are two common ways to scale a monolithic application:

  • Scaling it vertically, meaning using bigger EC2 instances such that you get an instance with more CPU, more memory, and better network performance
  • Scaling it horizontally, meaning adding more and more EC2 instances running the same code and load balancing the traffic across them

Scaling vertically is, of course, the easiest approach when it comes down to handling more traffic, but because we are trying to solve both the performance and the redundancy issues, we need to include the horizontal scaling component to our scaling strategy. In addition, you may remember the "just-in-time infrastructure" concept explained in Chapter...