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

Defining the deploy stage

We're almost finished with the pipeline, at least in its current form.

The purpose of the deploy stage is to install the new release to production and to do the last round of tests that only verify whether the new release integrates with the rest of the system. Those tests are often elementary since they do not validate the release on the functional level. We already know that the features work as expected and immutability of the containers guarantee that what was deployed as a test release is the same as what will be upgraded to production. What we're not yet sure is whether there is a problem related to the configuration of the production environment or, in our case, production Namespace.

If something goes wrong, we need to be able to act swiftly and roll back the release. I'll skip the discussion about the inability to roll back when...