##Running AB Testing on OpenShift

Steps

• Using Web Console create a new-app with name app-a pointing to his gitrepo. Go to 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 eg: 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 Run curl in a loop to show how the results all show Version 1 Eg: for i in {1..20}; do curl http://appab-abdemo.apps.testv3.osecloud.com; echo ""; done

• Edit the code to make changes. In my case I would change version number to 2.

• Using web console add a new-app with name app-b without route. Verify that service app-b got 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 Eg: for i in {1..20}; do curl http://appab-abdemo.apps.testv3.osecloud.com/; echo ""; done