Add RBAC (ClusterRole,Role, RoleBinding, ClusterRoleBinding) kinds to `restoreResourcePriorities` for Velero

[migueleliasweb]

Hi all,

I stumbled across a small problem when restoring Velero backups.

After the restore CRD is created, I've found that any Kinds (deployments, cronjobs, daemonsets, etc) that result in Pods being created, might have problems starting up their pods.

Due to the nature of the Controle Plane, Pods that rely on having access to the Kubernetes API (via RBAC config - [Cluster]Role, [Cluster]RoleBinding) to perform their work might fail to start as the Control Plane may not have had enough time to propagate RBAC related Kinds.

This can be somewhat easily fixed by adding the RBAC related Kinds in the mentioned list: https://github.com/vmware-tanzu/helm-charts/blob/master/charts/velero/values.yaml#L141

I wonder if it wouldn't make sense to make this the default behaviour?

[migueleliasweb]

Ps: don't know wether the change you need to be made in the code itself or in the chart, since the default list in defined in: https://github.com/vmware-tanzu/velero/blob/master/pkg/cmd/server/server.go#L485