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

Creating ServiceAccounts

Let's take a look at service accounts currently available in the default Namespace.

 1  kubectl get sa

The output is as follows.

default 1       24m

At the moment, there is only one ServiceAccount called default. We already saw the limitations of that account. It is stripped from (almost) all the privileges. If we check the other Namespaces, we'll notice that all of them have only the default ServiceAccount. Whenever we create a new Namespace, Kubernetes creates that account for us.

A note to minishift users
OpenShift is an exception. Unlike most other Kubernetes flavors, it created a few ServiceAccounts in the default Namespace. Feel free to explore them later when you learn more about ServiceAccounts and their relations to Roles.

We already established that we'll need to create new ServiceAccounts if we are ever to allow...