Running A/B Tests on OpenShift (Demo)

In this video

In this video, Veer Muchandi covers integrated A/B Deployments and how to test application changes in OpenShift Container Platform 3.3.

Notes

Steps to run an A/B test on OpenShift Container Platform 3.3

• Using the OpenShift web console create a new-app with name app-a. Go to the advanced options and uncheck the route creation option so that the app does not create a route. We will add the route later.
• Add a route by clicking on the Create Route option next to service app-a. Give a common name for the route as it will frontend multiple versions of the application (e.g. appab-abdemo.apps.testv3.osecloud.com).
• Annotate the route to use roundrobin load balancing method:

oc annotate route/appab haproxy.router.openshift.io/balance=roundrobin

• Test your app and check the results.
• Edit the code to make some changes.
• Using the web console add a new-app with name app-b without a route. Verify that service app-b was created.
• Now edit the route to split traffic between services app-a and app-b. You can change the percentages and test.
• Test using curl from your workstation - for example:

for i in {1..20}; do curl http://appab-abdemo.apps.testv3.osecloud.com/; echo ""; done

The Author

You can find Veer's other posts here, which include many other demos and walkthroughs for OpenShift Origin and OpenShift Container Platform.

On Twitter: @VeerMuchandi

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