poblin-orange
commented
1 year ago Note: this concept is not managed by bosh, and is iaas/context specific. Might be better to manage it with a separate controller scanning iaas api and labeling the nodes accordingly
To support multi region cluster, the bosh release should be able to set region on each vm instance group. see https://kubernetes.io/docs/reference/labels-annotations-taints/#topologykubernetesioregion
In bosh context, even with multi-cpi director, there is no region concept. We can however sometime deduce the region id from zone id (eg: r1-z1, r1-z2, r2-z1,r2-z2 is 2 regions r1 and r2, each with 2 az).
We should be able to optin region calculation from az name.