OpenShift Templates for Selenium

01 Feb 2016

I've recently started using OpenShift, and grown to love it. For those of you who do not know what OpenShift does, the excerpt from OpenShift's website says

OpenShift is Red Hat's Platform-as-a-Service (PaaS) that allows developers to quickly develop, host, and scale applications in a cloud environment

Where OpenShift shines, is its ability to take docker containers, and deploy them in any configuration you could imagine.

The way this post pertains to Selenium, is the fact that you are able to leverage OpenShift, and the existent Selenium Docker containers, to create a scalable Selenium infrastructure.

The Templates

  • Selenium Hub

    Defines the parameters in which the Selenium Grid will run

  • Selenium Node (Chrome)

    A Chrome specific configuration to enable replication controllers in OpenShift which allow free-scaling of a Selenium Node with the Chrome browser, and the ability to connect to any hub.

  • Selenium Node (Firefox)

    A Firefox specific configuration to enable replication controllers in OpenShift which allow free-scaling of a Selenium Node with the Firefox browser, and the ability to connect to any hub.

Tutorial

This tutorial will show you step-by-step instructions on getting your infrastructure in place using one hub, and one Chrome node connecting to the hub.

  1. Download the OpenShift Templates by cloning, or downloading directly.
  2. Login to your OpenShift instance using the oc CLI.
  3. Create the Selenium Hub template by using oc create -f selenium-hub.yaml
  4. Create the Selenium Node Chrome template by using oc create -f selenium-node-chrome.yaml
  5. From the OpenShift WebApp, switch to your desired project, and click "Add to Project"
  6. Search for "selenium" and add the "selenium-hub" template to the project.
  7. Click Create
  8. Click "Add to Project"
  9. Search for "selenium" and add the "selenium-node-chrome" template to the project.
  10. Upon configuration of the Selenium Node, change the HUBPORT4444TCPADDR and HUBPORT4444TCPPORT to the route defined here.
  11. Click Create

You now have a scalable infrastructure with one hub, and any amount of nodes ready to run tests in the Chrome browser. Add to this as necessary. You may also oc create -f selenium-node-chrome.yaml and follow steps 8-11 in the context of "firefox" instead of chrome.

Links

GitHub: https://github.com/ddavison/selenium-openshift-templates

Published on 01 Feb 2016 Find me on Twitter or StackOverflow