[stable/prometheus-node-exporter] Add options to change volume mount propagation (#11194)

* Add options to change volume  mount propagation

Signed-off-by: Karol Chrapek <kaarol@it-flow.pl>

* Add missing new line

Signed-off-by: Karol Chrapek <kaarol@it-flow.pl>

stable/prometheus-node-exporter/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "0.17.0"
 description: A Helm chart for prometheus node-exporter
 name: prometheus-node-exporter
-version: 1.2.0
+version: 1.3.0
 home: https://github.com/prometheus/node_exporter/
 sources:
 - https://github.com/prometheus/node_exporter/

stable/prometheus-node-exporter/templates/daemonset.yaml

@@ -7,18 +7,18 @@ spec:
   selector:
     matchLabels:
       app: {{ template "prometheus-node-exporter.name" . }}
-      release: {{ .Release.Name }}  
+      release: {{ .Release.Name }}
   updateStrategy:
     type: RollingUpdate
     rollingUpdate:
-      maxUnavailable: 1      
+      maxUnavailable: 1
   template:
     metadata:
       labels: {{ include "prometheus-node-exporter.labels" . | indent 8 }}
     spec:
 {{- if and .Values.rbac.create .Values.serviceAccount.create }}
       serviceAccountName: {{ template "prometheus-node-exporter.serviceAccountName" . }}
-{{- end }}      
+{{- end }}
 {{- if .Values.securityContext }}
       securityContext:
 {{ toYaml .Values.securityContext | indent 8 }}
@@ -63,6 +63,9 @@ spec:
             - name: {{ $mount.name }}
               mountPath: {{ $mount.mountPath }}
               readOnly: {{ $mount.readOnly }}
+            {{- if $mount.mountPropagation }}
+              mountPropagation: {{ $mount.mountPropagation }}
+            {{- end }}
             {{- end }}
             {{- end }}
       hostNetwork: true
@@ -92,4 +95,4 @@ spec:
           hostPath:
             path: {{ $mount.hostPath }}
         {{- end }}
-        {{- end }}
+        {{- end }}

stable/prometheus-node-exporter/values.yaml

@@ -87,3 +87,4 @@ extraHostVolumeMounts: {}
 #    hostPath: <hostPath>
 #    mountPath: <mountPath>
 #    readOnly: true|false
+#    mountPropagation: None|HostToContainer|Bidirectional