Epic in Jira = OSSM-1 , KIALI-1836

Google doc for Epic = https://docs.google.com/document/d/1JS_uwziedXHkThgoYWUMYEftwXO-TZJZjaurBrYRpHA/edit#heading=h.9khfep37qdjo

User Story = As a developer I can shift/tune the traffic between different versions of my applications so that I feel confident about upgrading between different versions. (Weighted Route)

Research references =https://istio.io/docs/tasks/traffic-management/traffic-shifting/