Add subpath to mysqldump persistence (#9654)

Signed-off-by: Kevin ONeal <oneal.kevin@gmail.com>

stable/mysqldump/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: 2.0.0
 description: A Helm chart to help backup MySQL databases using mysqldump
 name: mysqldump
-version: 2.0.0
+version: 2.0.1
 keywords:
 - mysql
 - mysqldump

stable/mysqldump/README.md

@@ -64,6 +64,7 @@ persistence.enabled             | create new PVC (unless `persistentVolumeClaim`
 persistence.size                | size of PVC to create                     | 8Gi
 persistence.accessMode          | accessMode to use for PVC                 | ReadWriteOnce
 persistence.storageClass        | storage class to use for PVC              |
+persistence.subPath             | subPath for PVC                           |
 allDatabases.enabled            | backup all databases                      | true   
 allDatabases.SingleSqlFile      | backup all databases to singel file       | false
 housekeeping.enabled            | delete olf backups in pvc                 | true     

stable/mysqldump/files/job.tpl

@@ -12,6 +12,9 @@ spec:
     volumeMounts:
     - name: backups
       mountPath: /backup
+{{- if .Values.persistence.subPath }}
+      subPath: {{ .Values.persistence.subPath }}
+{{- end }}
     - name: mysql-backup-script
       mountPath: /scripts
 {{- if .Values.upload.ssh.enabled }}

stable/mysqldump/values.yaml

@@ -38,14 +38,15 @@ successfulJobsHistoryLimit: 5
 failedJobsHistoryLimit: 5
 
 ## set persistentVolumeClaim to use a PVC that already exists.
-## if set will override any settings under `resistence` otherwise
-## if not set and `persistence` set to true, will create a PVC.
+## if set will override any settings under `persistence` otherwise
+## if not set and `persistence.enabled` set to true, will create a PVC.
 # persistentVolumeClaim: <existing-PVC>
 
 persistence:
   enabled: true
   size: 8Gi
   accessMode: ReadWriteOnce
+  subPath:
   ## If defined, storageClassName: <storageClass>
   ## If set to "-", storageClassName: "", which disables dynamic provisioning
   ## If undefined (the default) or set to null, no storageClassName spec is