Book Image

Learn OpenShift

By : Denis Zuev, Artemii Kropachev, Aleksey Usov
Book Image

Learn OpenShift

By: Denis Zuev, Artemii Kropachev, Aleksey Usov

Overview of this book

Docker containers transform application delivery technologies to make them faster and more reproducible, and to reduce the amount of time wasted on configuration. Managing Docker containers in the multi-node or multi-datacenter environment is a big challenge, which is why container management platforms are required. OpenShift is a new generation of container management platforms built on top of both Docker and Kubernetes. It brings additional functionality to the table, something that is lacking in Kubernetes. This new functionality significantly helps software development teams to bring software development processes to a whole new level. In this book, we’ll start by explaining the container architecture, Docker, and CRI-O overviews. Then, we'll look at container orchestration and Kubernetes. We’ll cover OpenShift installation, and its basic and advanced components. Moving on, we’ll deep dive into concepts such as deploying application OpenShift. You’ll learn how to set up an end-to-end delivery pipeline while working with applications in OpenShift as a developer or DevOps. Finally, you’ll discover how to properly design OpenShift in production environments. This book gives you hands-on experience of designing, building, and operating OpenShift Origin 3.9, as well as building new applications or migrating existing applications to OpenShift.
Table of Contents (24 chapters)

Technical requirements

In this chapter, we will use the following technologies and software:

  • The command-line interface
  • Minishift
  • GitHub
  • Web browsers

The Vagrant installation, and all of the code that we will use in this chapter, are located on GitHub, at https://github.com/PacktPublishing/Learn-OpenShift.

You can use Firefox or any other browser to navigate through Docker Hub.

As a prerequisite, you will need a stable internet connection from your laptop.

We will use Minishift as our lab environment in this chapter. Before you start, please delete your existing Minishift VM (if there is one), because we will need to create a new VM, with non-standard parameters:

$ minishift start --openshift-version=v3.9.0 --vm-driver=virtualbox --memory 4GB
...
output truncated for brevity
...
-- Minishift VM will be configured with ...
Memory: 4 GB
vCPUs : 2
Disk size: 20 GB
...
output truncated...