[stable/prometheus-pushgateway] Fix persistence support (#20048)

* Add persistence support

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* fix linting issue

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* Update Chart version

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* Avoid breaking existing behaviour

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* [stable/prometheus-pushgateway] Bump version (#16040)

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* [stable/prometheus-pushgateway] Fix persistence support

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

* Change back default persistence path

Signed-off-by: Patrick Kolze <patrick.kolze@doublecheck-it.de>

stable/prometheus-pushgateway/Chart.yaml

@@ -2,7 +2,7 @@ apiVersion: v1
 appVersion: "1.0.1"
 description: A Helm chart for prometheus pushgateway
 name: prometheus-pushgateway
-version: 1.2.12
+version: 1.2.13
 home: https://github.com/prometheus/pushgateway
 sources:
 - https://github.com/prometheus/pushgateway

stable/prometheus-pushgateway/templates/deployment.yaml

@@ -49,6 +49,12 @@ spec:
             timeoutSeconds: 10
           resources:
 {{ toYaml .Values.resources | indent 12 }}
+          {{- if .Values.persistentVolume.enabled }}
+          volumeMounts:
+            - name: storage-volume
+              mountPath: "{{ .Values.persistentVolume.mountPath }}"
+              subPath: "{{ .Values.persistentVolume.subPath }}"
+          {{- end }}
     {{- if .Values.nodeSelector }}
       nodeSelector:
 {{ toYaml .Values.nodeSelector | indent 8 }}