WE SCALED IT

Scale testing Eclipse Hono on OpenShift

Dejan Bosanac, Jens ReimannSenior Software EngineerEclipseCon Europe 2018

Red Hat CodeReady Toolchain for OpenShift User Guide

Red Hat Developers Documentation Team

2018-12-20 14:15:48 UTC

One view of DevOps is that it helps take on that last mile problem in software: value

delivery. The premise is that encouraging behaviors such as teaming, feedback, and

experimentation will be reinforced by desirable outcomes such as better software,

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delivered faster and at lower cost. For many, the DevOps discourse then quickly turns

to automation. That makes sense as automation is an environmental intervention that is

relatively actionable. If you want to change behavior, change the environment!

In this context, automation becomes a significant investment decision with strategic

import. DevOps automation engineers face a number of design choices. What level of

interface abstraction is appropriate for the automation tooling? Where should you

separate automation concerns of an infrastructure nature from those that should be

more application centric?

These questions matter because automation tooling that is accessible to all can better

connect all the participants in the software delivery process. That is going to help

foster all those positive teaming behaviors we are after. Automation that is decoupled

from infrastructure provisioning events makes it possible to quickly tenant new project

streams. Users can immediately self-serve without raising a new infrastructure

requisition.

We want to open the innovation process to all, be they 10x programmers or citizen

developers. Doing DevOps with OpenShift makes this possible, and this book will

show you how.

This is a practical guide that will show how to easily implement and automate

powerful cloud deployment patterns using OpenShift. The OpenShift container

management platform provides a self-service platform for users. Its natively containeraware

approach will allow us to show you an application-centric view to automation.

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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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