Book Image

The DevOps 2.4 Toolkit

By : Viktor Farcic
Book Image

The DevOps 2.4 Toolkit

By: Viktor Farcic

Overview of this book

Building on The DevOps 2.3 Toolkit: Kubernetes, Viktor Farcic brings his latest exploration of the Docker technology as he records his journey to continuously deploying applications with Jenkins into a Kubernetes cluster. The DevOps 2.4 Toolkit: Continuously Deploying Applications with Jenkins to a Kubernetes Cluster is the latest book in Viktor Farcic’s series that helps you build a full DevOps Toolkit. This book guides readers through the process of building, testing, and deploying applications through fully automated pipelines. Within this book, Viktor will cover a wide-range of emerging topics, including an exploration of continuous delivery and deployment in Kubernetes using Jenkins. It also shows readers how to perform continuous integration inside these clusters, and discusses the distribution of Kubernetes applications, as well as installing and setting up Jenkins. Work with Viktor and dive into the creation of self-adaptive and self-healing systems within Docker.
Table of Contents (12 chapters)
Now It Is Your Turn

Using Jenkins file and Multistage builds

The pipeline we designed has at least two significant shortcomings. It is not aware of branches, and it is not in source control. Every time we instructed Jenkins to use the git step, it pulled the latest commit from the master branch. While that might be OK for demos, it is unacceptable in real-world situations. Our pipeline must pull the commit that initiated a build from the correct branch. In other words, no matter where we push a commit, that same commit must be used by the pipeline.

If we start processing all commits, no matter from which branch they're coming, we will soon realize that it does not make sense always to execute the same stages. As an example, the release and deploy stages should be executed only if a commit is made to the master branch. Otherwise, we'd create a new production release always, even if...