[stable/memcached] Add ability to specify arbitrary custom labels in memcached helm chart (#11966)

* Add ability to specify arbitrary custom labels in memcached helm chart

Signed-off-by: orkhanm <orkhan.mamedov.7@gmail.com>

* Update casing to be consistant across all values file references, add readme reference to new parameter

Signed-off-by: orkhanm <orkhan.mamedov.7@gmail.com>

* Fix circleci lint error "missing starting space in comment  (comments)"

Signed-off-by: orkhanm <orkhan.mamedov.7@gmail.com>

* Bump minor version; Change the way yaml is templated into statefulset

Signed-off-by: orkhanm <orkhan.mamedov.7@gmail.com>

* change parameter name from customLabels to podLabels

Signed-off-by: orkhanm <orkhan.mamedov.7@gmail.com>

stable/memcached/Chart.yaml

@@ -1,5 +1,5 @@
 name: memcached
-version: 2.6.0
+version: 2.7.0
 appVersion: 1.5.12
 description: Free & open source, high-performance, distributed memory object caching
   system.

stable/memcached/README.md

@@ -54,6 +54,7 @@ The following table lists the configurable parameters of the Memcached chart and
 | `extraVolumes`            | Volume definitions to add as string | Un-set                                              |
 | `kind`                    | Install as StatefulSet or Deployment | StatefulSet                                        |
 | `podAnnotations`          | Map of annotations to add to the pod(s) | `{}`                                            |
+| `podLabels`               | Custom Labels to be applied to statefulset | Un-set                                   |
 | `nodeSelector`            | Simple pod scheduling control | `{}`                                            |
 | `tolerations`             | Allow or deny specific node taints | `{}`                                            |
 | `affinity`                | Advanced pod scheduling control | `{}`                                            |

stable/memcached/templates/statefulset.yaml

@@ -17,6 +17,9 @@ spec:
         chart: "{{ .Chart.Name }}-{{ .Chart.Version }}"
         release: "{{ .Release.Name }}"
         heritage: "{{ .Release.Service }}"
+{{- with .Values.podLabels }}
+{{ toYaml . | indent 8 }}
+{{- end}}
 {{- with .Values.podAnnotations }}
       annotations:
 {{ toYaml . | indent 8 }}

stable/memcached/values.yaml

@@ -77,5 +77,10 @@ extraContainers: |
 
 extraVolumes: |
 
+## Custom metadata labels to be applied to statefulset and pods
+# podLabels:
+#   foo: "bar"
+#   bar: "foo"
+
 # To be added to the server pod(s)
 podAnnotations: {}