With the current K8s site manifest template (https://gitlab.com/volterra.io/volterra-ce/-/blob/master/k8s/ce_k8s.yml), only a single master node can be deployed without causing etcd volume corruption. K8s sites should support 3 master nodes for etcd HA as well as multiple worker nodes to scale the data plane.
It would be preferable that the multiple node CE data plane deployment remained a StatefulSet.
This issue is documented in:
https://gitlab.com/volterra/support/technical/-/issues/4655