Book Image

Docker High Performance - Second Edition

By : Allan Espinosa, Russ McKendrick
Book Image

Docker High Performance - Second Edition

By: Allan Espinosa, Russ McKendrick

Overview of this book

Docker is an enterprise-grade container platform that allows you to build and deploy your apps. Its portable format lets you run your code right from your desktop workstations to popular cloud computing providers. This comprehensive guide will improve your Docker work?ows and ensure your application's production environment runs smoothly. This book starts with a refresher on setting up and running Docker and details the basic setup for creating a Docker Swarm cluster. You will then learn how to automate this cluster by using the Chef server and cookbooks. After that, you will run the Docker monitoring system with Prometheus and Grafana, and deploy the ELK stack. You will also learn best practices for optimizing Docker images. After deploying containers with the help of Jenkins, you will then move on to a tutorial on using Apache JMeter to analyze your application's performance. You will learn how to use Docker Swarm and NGINX to load-balance your application, and how common debugging tools in Linux can be used to troubleshoot Docker containers. By the end of this book, you will be able to integrate all the optimizations that you have learned and put everything into practice in your applications.
Table of Contents (16 chapters)
Title Page
Copyright and Credits
About Packt
Contributors
Preface
Index

Deploying applications


An important component when tuning the performance of Docker containers is the feedback telling us that we were able to improve our web application correctly. The deployment of Graphite and the ELK stack in Chapter 3, Monitoring Docker, gave us visibility on the effects of what we changed in our Docker-based web application. As much as it is important to gather feedback, it is more important to gather feedback in a timely manner. Therefore, the deployment of our Docker containers needs to be in a fast and scalable manner. Being able to configure a Docker host automatically, as we did in Chapter 2, Configuring Docker with Chef, is an important component for a fast and automated deployment system. The rest of the components are described in the following diagram:

Whenever we submit changes to our application's code or the Dockerfile describing how it is run and built, we need supporting infrastructure to propagate this change all of the way to our Docker hosts. In the...