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)

What to expect from the following OpenShift releases

While it is still hard to predict what to expect from future OpenShift versions, we can derive some of this information from the technology preview features that you can find in the OCP 3.9 release notes as well as in the latest Red Hat events such as Red Hat Summit 2018, which took place from May 7 to May 11 in 2018. The good part is that the OCP software release cycle is every 3 months, which means that by the time you read this book, there is a chance that we will already have a new version of OpenShift coming out. The following table shows the difference between the versions of OCP in terms of Tech Preview (TP) and General Availability (GA):

Features OCP 3.7 OCP 3.9

OCP 3.10, OCP 3.11

Prometheus cluster monitoring TP TP GA*
CRI-O TP GA*
CLI plugins TP TP GA*
Device plugins TP GA
CPU manager TP TP*
Huge...