For extending ONAP deployment support across multiple K8S cluster, need following support under OOM.

• Consistent identification of cluster information under helm charts
• Mechanism for deployment (e.g via helm deploy) to specify the target cluster
• Servicename convention for cross site scenarios
• Each cluster should be classifiable under {cloud-owner } + {cloud-region-id} + {tenant}
• Credentials/access for each of the cluster maintained in consistent manner

Both DCAE (and DMAAP) may require support of cross k8s site deployment in Dublin. Any reference implementation or guidelines on above will help to move forward.