[stable/neo4j] Fix dataVolume Persistence (#4046)

* make data volume persistent + make subPath optional

* fix README format

* change minor version

stable/neo4j/Chart.yaml

@@ -1,6 +1,6 @@
 name: neo4j
 home: https://www.neo4j.com
-version: 0.6.1
+version: 0.7.0
 appVersion: 3.2.3
 description: Neo4j is the world's leading graph database
 icon: http://info.neo4j.com/rs/773-GON-065/images/neo4j_logo.png

stable/neo4j/README.md

@@ -64,6 +64,7 @@ their default values.
 | `core.persistentVolume.storageClass` | Storage class of backing PVC                                                                                                            | `standard` (uses beta storage class annotation) |
 | `core.persistentVolume.size`         | Size of data volume                                                                                                                     | `10Gi`                                          |
 | `core.persistentVolume.mountPath`    | Persistent Volume mount root path                                                                                                       | `/data`                                         |
+| `core.persistentVolume.subPath`      | Subdirectory of the volume to mount                                                                                                     | `nil`                                           |
 | `core.persistentVolume.annotations`  | Persistent Volume Claim annotations                                                                                                     | `{}`                                            |
 | `readReplica.numberOfServers`        | Number of machines in READ_REPLICA mode                                                                                                 | `0`                                             |
 | `readReplica.initContainers`         | Init containers to add to the replica pod. Example use case is a script that installs the APOC library                                  | `{}`                                            |

stable/neo4j/templates/core-statefulset.yaml

@@ -76,8 +76,9 @@ spec:
         volumeMounts:
         - name: datadir
           mountPath: "{{ .Values.core.persistentVolume.mountPath }}"
-          subPath: "{{ .Values.core.persistentVolume.subPath }}"
-        volumeMounts:
+          {{- if .Values.core.persistentVolume.subPath }}
+          subPath: {{ .Values.core.persistentVolume.subPath }}
+          {{- end }}
         - name: plugins
           mountPath: /plugins
         resources:

stable/neo4j/values.yaml

@@ -46,7 +46,7 @@ core:
     ## Subdirectory of core server data Persistent Volume to mount
     ## Useful if the volume's root directory is not empty
     ##
-    subPath: ""
+    ## subPath: ""
 
   ## Pass extra environment variables to the Neo4j container.
   ##