As part of promoting dualStack to Tech Preview+ in the OSSM 3 release, we need a CI job to validate the integration tests with Istio deployed in dualStack mode (and optionally in IPv4 mode). From the Jira OSSM-3810, we know that the OpenShift team already has automation in place to create dualStack OCP clusters on the OSP 17.1 platform. Additionally, we have a Google Doc outlining the manual steps for developers who are interested in deploying dualStack OCP clusters for manual verification.

Acceptance:

• Manually set up a long-lived dual-stack OCP cluster on PSI/OpenStack, which will be used for running downstream pipeline integration tests. This cluster will be reused across test runs.
• Update the downstream pipeline to include dual-stack parameters during the installation of the Sail Operator, as documented here: https://github.com/istio-ecosystem/sail-operator/tree/main/docs#installation-steps
• Currently, not all integration tests are being run on OCP (even for IPv4 clusters) in downstream, and there is a separate Epic to track this. For the dual-stack job, we will execute the same test suite as the regular IPv4 pipeline and expand the test matrix as the QE team adds more tests to the standard pipeline.