rabbitmq: set hostPath for rabbitmq-data

In an Edge environment without a distributed storage environment, it
should be able to store rabbitmq data in the local path as well.

This patch added an option to use it in a more diverse environment.

Change-Id: Ia3c0dfaa58c237e424197f1406bd66fb991bea18
Story: 2005753
Task: 33455

rabbitmq/templates/statefulset.yaml

@@ -247,8 +247,14 @@ spec:
             defaultMode: 0444
         {{- if not $envAll.Values.volume.enabled }}
         - name: rabbitmq-data
+        {{- if .Values.volume.use_local_path.enabled }}
+          hostPath:
+            path:  {{ .Values.volume.use_local_path.host_path }}
+            type: DirectoryOrCreate
+        {{- else }}
           emptyDir: {}
         {{- end }}
+        {{- end }}
 {{- if $envAll.Values.volume.enabled }}
   volumeClaimTemplates:
     - metadata:

rabbitmq/values.yaml

@@ -319,6 +319,9 @@ network_policy:
       - {}
 
 volume:
+  use_local_path:
+    enabled: false
+    host_path: /var/lib/rabbitmq
   chown_on_start: true
   enabled: true
   class_name: general