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.

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Table of Contents (9 chapters)
Preface
Preface
What this book covers
What you need for this book
Who this book is for
Conventions
Reader feedback
Customer support
Free Chapter
1
The Cloud and the DevOps Revolution
The Cloud and the DevOps Revolution
Thinking in terms of the cloud and not infrastructure
Adopting a DevOps culture
Deploying in AWS
Summary
2
Deploying Your First Web Application
Deploying Your First Web Application
Creating and configuring your account
Creating our first web server
Summary
3
Treating Your Infrastructure As Code
Treating Your Infrastructure As Code
Managing your infrastructure with CloudFormation
Adding a configuration management system
Summary
4
Adding Continuous Integration and Continuous Deployment
Adding Continuous Integration and Continuous Deployment
Building a continuous integration pipeline
Building a continuous deployment pipeline
Summary
5
Scaling Your Infrastructure
Scaling Your Infrastructure
Scaling a monolithic application
Improving performance and cost saving
Architecting your application to handle massive amounts of traffic
Summary
6
Running Containers in AWS
Running Containers in AWS
Dockerizing our helloworld application
Using the EC2 container service
Creating a CI/CD pipeline to deploy to ECS
Summary
7
Monitoring and Alerting
Monitoring and Alerting
Instrumenting our application for monitoring
Monitoring our infrastructure
Creating alarms using CloudWatch and SNS
Summary
8
Hardening the Security of Your AWS Environment
Hardening the Security of Your AWS Environment
Understanding where to focus your effort
Improving the security of the IAM layer
Strengthening the security at the network level
Protecting against targeted attacks
Summary

Summary

In this chapter, we went through one of the most important aspects of the DevOps philosophy: changing the way code is released.

Our first objective was to improve the developers' productivity. To that effect, we built a continuous integration pipeline. Taking advantage of Jenkins and GitHub, we created a new workflow where developers commit their code in individual branches and submit pull requests. The branches are automatically tested with Jenkins and a final peer review ensures that the code committed is of high quality.

Thanks to that change, the code present in the master branch of our project is always good and worth being pushed to staging. To accomplish that, we built a continuous deployment pipeline. Thanks to AWS CodeDeploy and CodePipeline we were able to build a fully functional pipeline easily. The pipeline has all the desired features an operator could...

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