[stable/mysql] Support defining PriorityClass (#10240)

Signed-off-by: Renat Galiev <renat@galiev.net>

stable/mysql/Chart.yaml

@@ -1,5 +1,5 @@
 name: mysql
-version: 0.11.0
+version: 0.12.0
 appVersion: 5.7.14
 description: Fast, reliable, scalable, and easy to use open-source relational database
   system.

stable/mysql/README.md

@@ -100,6 +100,7 @@ The following table lists the configurable parameters of the MySQL chart and the
 | `initializationFiles`                        | List of SQL files which are run after the container started                                  | `nil`                                                |
 | `timezone`                                   | Container and mysqld timezone (TZ env)                                                       | `nil` (UTC depending on image)                       |
 | `podAnnotations`                             | Map of annotations to add to the pods                                                        | `{}`                                                 |
+| `priorityClassName`                          | Set pod priorityClassName                                                                    | `{}`                                                 |
 
 Some of the parameters above map to the env variables defined in the [MySQL DockerHub image](https://hub.docker.com/_/mysql/).
 

stable/mysql/templates/deployment.yaml

@@ -20,6 +20,9 @@ spec:
       {{- if .Values.imagePullSecrets }}
       imagePullSecrets:
 {{ toYaml .Values.imagePullSecrets | indent 8 }}
+      {{- end }}
+      {{- if .Values.priorityClassName }}
+      priorityClassName: "{{ .Values.priorityClassName }}"
       {{- end }}
       initContainers:
       - name: "remove-lost-found"

stable/mysql/values.yaml

@@ -166,3 +166,6 @@ ssl:
 
 # To be added to the database server pod(s)
 podAnnotations: {}
+
+## Set pod priorityClassName
+# priorityClassName: {}