OpenShift has been available since 2011 and has seen great success as a polyglot platform

for the deployment of web applications and services. Part of the success of

OpenShift derives from the use of containers in conjunction with a Security-

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Enhanced Linux (SELinux) environment. These technologies enable OpenShift to

implement a secure multi tenant environment suitable for the enterprise, as well as

OpenShift Online, Red Hat’s own public platform as a service (PaaS) offering.

Technology is always evolving, and to keep up with the latest advances OpenShift has

also evolved. The latest version of OpenShift takes advantage of newer technologies

such as Docker and Kubernetes, for managing and running applications within containers.

Building on Kubernetes and OpenShift’s own magic sauce, OpenShift takes

PaaS to a new level, what we like to call a container application platform.

OpenShift offers you the ability to easily deploy your web application code directly

using a library of pre-defined image builders, or you can bring your own Docker

images. With support in OpenShift for features such as persistent volumes, you are

not limited to just running 12-factor or cloud native applications. You can also deploy

databases and many legacy applications which you otherwise would not be able to

run on a traditional PaaS.

OpenShift is the modern take on PaaS that you can use with your current applications,

but which also provides the power and flexibility to meet future needs. This

book will bring you up to speed on how OpenShift has changed to meet the new

requirements for building, deploying and hosting your applications.

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