Fix regional DR kubevirt env config

[akalenyu]

Today volsync is required to start up some of the ramen controllers:

2024-06-02T12:04:48.162Z	ERROR	controller-runtime.source.EventHandler	source/kind.go:68	failed to get informer from cache	{"error": "failed to get API group resources: unable to retrieve the complete list of server APIs: volsync.backube/v1alpha1: the server could not find the requested resource"}

which is an issue because some time ago volsync was disabled (43266c5).

Related - kubernetes-sigs/controller-runtime#2456

[akalenyu]

@nirs Not sure if volsync is an intended requirement or this is a bug

[nirs]

Did you configure ramen after deploying as documented here?
https://github.com/RamenDR/ramen/blob/main/docs/user-quick-start.md#deploy-and-configure-the-ramen-operator

If you did, volsync would be disabled and the error you mention would no happen.

See

ramen/ramenctl/ramenctl/config.py

Line 92 in 3d54ae6

def generate_config_map(controller, env, args):

I would like to keep volsync disabled unless we need to test kubevirt with cephfs.

I don’t think it will work for real vms because rsync does not support efficient replication of sparse images.

[akalenyu]

volsync.backub

Yup you're right, once ramenctl config runs the pod will die once and come up with that watch disabled

[akalenyu]

#1433 (comment)