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

Automating Jenkins installation and setup

One of the critical parts of Jenkins automation is the management of credentials. Jenkins uses hudson.util.Secret and master.key files to encrypt all the credentials. The two are stored in secrets directory inside Jenkins home directory. The credentials we uploaded or pasted are stored in credentials.yml. On top of those, each plugin (for example, Google cloud) can add their files with credentials.

We need the credentials as well and the secrets if we are to automate Jenkins setup. One solution could be to generate the secrets, use them to encrypt credentials, and store them as Kubernetes secrets or config maps. However, that is a tedious process.

Since we already have a fully configured Jenkins, we might just as well copy the files. We'll persist the files we need to the local directories cluster/jenkins and cluster/jenkins...