Feature

As an Infrastructure Administrator, I want to deploy OpenShift on vSphere with supervisor (aka Masters) and worker nodes (from a MachineSet) across multiple vSphere data centers and multiple vSphere clusters using full stack automation (IPI) and user provided infrastructure (UPI).

MVP

Install OpenShift on vSphere using IPI / UPI in multiple vSphere data centers (regions) and multiple vSphere clusters in 1 vCenter, all in the same IPv4 subnet (in the same physical location).

• Kubernetes Region contains vSphere datacenter and (single) vCenter name
• Kubernetes Zone contains vSphere cluster, resource pool, datastore, network (port group)

Out of scope

• There are no support the conversion of a non-zonal configuration (i.e. an existing OpenShift installation without 1+ zones) to a zonal configuration (1+ zones), but zonal UPI installation by the Infrastructure Administrator is permitted.

Scenarios for consideration:

• OpenShift in vSphere across different zones to avoid single points of failure, whereby each node is in different ESX clusters within the same vSphere datacenter, but in different networks.
• OpenShift in vSphere across multiple vSphere datacenter, while ensuring workers and masters are spread across 2 different datacenter in different subnets. (RFE-845, RFE-459).

Acceptance criteria:

• Ensure vSphere IPI can successfully be deployed with ODF across the 3 zones (vSphere clusters) within the same vCenter [like we do with AWS, GCP & Azure].
• Ensure zonal configuration in vSphere using UPI is documented and tested.

References: 

• https://vmware.github.io/vsphere-storage-for-kubernetes/documentation/zones.html
• https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.vcenterhost.doc/GUID-E8E854DD-AA97-4E0C-8419-CE84F93C4058.html