[stable/mysql] Add ability to modify timezone (#7121) (#7123)

* [stable/mysql] Add ability to modify timezone (#7121)

* Add a 'timezone' to allow timezone to be configured via TZ env

* Bump version number

* Slightly more descriptive README.md

stable/mysql/Chart.yaml

@@ -1,5 +1,5 @@
 name: mysql
-version: 0.8.2
+version: 0.8.3
 appVersion: 5.7.14
 description: Fast, reliable, scalable, and easy to use open-source relational database
   system.

stable/mysql/README.md

@@ -86,6 +86,7 @@ The following table lists the configurable parameters of the MySQL chart and the
 | `ssl.certificates[0].key`            | Server key (private key)                  | `nil`                                                |
 | `imagePullSecrets`                   | Name of Secret resource containing private registry credentials | `nil`                          |
 | `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)                       |
 
 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

@@ -58,6 +58,10 @@ spec:
           value: {{ default "" .Values.mysqlUser | quote }}
         - name: MYSQL_DATABASE
           value: {{ default "" .Values.mysqlDatabase | quote }}
+        {{- if .Values.timezone }}
+        - name: TZ
+          value: {{ .Values.timezone }}
+        {{- end }}
         ports:
         - name: mysql
           containerPort: 3306

stable/mysql/values.yaml

@@ -127,3 +127,10 @@ ssl:
 #      -----BEGIN RSA PRIVATE KEY-----
 #      ...
 #      -----END RSA PRIVATE KEY-----
+
+## Populates the 'TZ' system timezone environment variable
+## ref: https://dev.mysql.com/doc/refman/5.7/en/time-zone-support.html
+##
+## Default: nil (mysql will use image's default timezone, normally UTC)
+## Example: 'Australia/Sydney'
+# timezone: