Book Image

Continuous Delivery with Docker and Jenkins

By : Rafał Leszko
Book Image

Continuous Delivery with Docker and Jenkins

By: Rafał Leszko

Overview of this book

The combination of Docker and Jenkins improves your Continuous Delivery pipeline using fewer resources. It also helps you scale up your builds, automate tasks and speed up Jenkins performance with the benefits of Docker containerization. This book will explain the advantages of combining Jenkins and Docker to improve the continuous integration and delivery process of app development. It will start with setting up a Docker server and configuring Jenkins on it. It will then provide steps to build applications on Docker files and integrate them with Jenkins using continuous delivery processes such as continuous integration, automated acceptance testing, and configuration management. Moving on you will learn how to ensure quick application deployment with Docker containers along with scaling Jenkins using Docker Swarm. Next, you will get to know how to deploy applications using Docker images and testing them with Jenkins. By the end of the book, you will be enhancing the DevOps workflow by integrating the functionalities of Docker and Jenkins.
Table of Contents (10 chapters)

Jenkins architecture

The hello world job executed in almost no time at all. However, the pipelines are usually more complex and spend time on tasks such as downloading files from the internet, compiling the source code, or running tests. One build can take from minutes to hours.

In common scenarios, there are also many concurrent pipelines. Usually, the whole team, or even the whole organization, uses the same Jenkins instance. How to ensure that the builds will run quickly and smoothly?

Master and slaves

Jenkins becomes overloaded sooner than it seems. Even in case of a small (micro) service, the build can take a few minutes. That means that one team committing frequently can easily kill the Jenkins instance.

For that reason...