Update rbd-provisioner replicas based on installed controllers

Currently the number of rbd-provisioner replicas is driven by the
stx-openstack application's 'openstack-control-plane' labels.

On systems where this label has not been applied to the controllers,
this will result in zero provisioners being installed.

Break the dependency on the stx-openstack app and set the number of
replicas based on the number of installed controllers as the
rbd-provisioner node selector will install in k8s masters (i.e.
controllers).

Also update the provisioner's storage-init pod to align with the same
node selection criteria as the rbd-provisioner pod.

Change-Id: Ida180fd12a4923c8cdd5bccf25a1a1e2af4f8a90
Closes-Bug: #1830290
Signed-off-by: Robert Church <robert.church@windriver.com>

stx-platform-helm/centos/build_srpm.data

@@ -5,4 +5,4 @@ $PKG_BASE/../../../helm-charts/node-feature-discovery \
 $PKG_BASE/../../../helm-charts/rbd-provisioner  \
 $PKG_BASE/../../../helm-charts/ceph-pools-audit"
 
-TIS_PATCH_VER=5
+TIS_PATCH_VER=6

stx-platform-helm/stx-platform-helm/helm-charts/rbd-provisioner/templates/pre-install-check-ceph.yaml

@@ -190,6 +190,10 @@ spec:
             - name: config-volume-{{- $root.Values.global.name }}
               mountPath: {{ $mount }}
         {{- end }}
+      {{- if .Values.global.nodeSelector }}
+      nodeSelector:
+      {{ .Values.global.nodeSelector | toYaml | trim | indent 8 }}
+      {{- end }}
 
 ---
 # This ConfigMap is needed because we're not using ceph's helm chart