helm: enable host network for openshift if needed

The securityContextConstraints require setting whether
host networking and host port access is needed by the
ceph cluster service accounts. The helm chart now allows
enabling this mode with the settings:
rook-ceph chart: useOperatorHostNetwork: true
rook-ceph-cluster chart: cephClusterSpec.network.provider: host

Signed-off-by: Travis Nielsen <tnielsen@redhat.com>
(cherry picked from commit 82262a8472)

deploy/charts/rook-ceph-cluster/templates/securityContextConstraints.yaml

@@ -8,10 +8,13 @@ metadata:
 allowPrivilegedContainer: true
 allowHostDirVolumePlugin: true
 allowHostPID: false
-# set to true if running rook with host networking enabled
+{{- if eq .Values.cephClusterSpec.network.provider "host" }}
+allowHostNetwork: true
+allowHostPorts: true
+{{- else }}
 allowHostNetwork: false
-# set to true if running rook with the provider as host
 allowHostPorts: false
+{{- end }}
 priority:
 allowedCapabilities: ["MKNOD"]
 allowHostIPC: true

deploy/charts/rook-ceph/templates/securityContextConstraints.yaml

@@ -8,10 +8,13 @@ metadata:
 allowPrivilegedContainer: true
 allowHostDirVolumePlugin: true
 allowHostPID: false
-# set to true if running rook with host networking enabled
+{{- if .Values.useOperatorHostNetwork }}
+allowHostNetwork: true
+allowHostPorts: true
+{{- else }}
 allowHostNetwork: false
-# set to true if running rook with the provider as host
 allowHostPorts: false
+{{- end }}
 priority:
 allowedCapabilities: ["MKNOD"]
 allowHostIPC: true