Disable mariadb mysql history client logging

Environment variable MYSQL_HISTFILE is added to mariadb container
to disable storing client mysql history to ~/.mysql_history file.

Change-Id: Ie95bc1f830fbf34d30c73de07513299115d8e8c5

mariadb/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v10.2.31
 description: OpenStack-Helm MariaDB
 name: mariadb
-version: 0.1.10
+version: 0.1.11
 home: https://mariadb.com/kb/en/
 icon: http://badges.mariadb.org/mariadb-badge-180x60.png
 sources:

mariadb/templates/statefulset.yaml

@@ -175,6 +175,8 @@ spec:
                   name: mariadb-dbaudit-password
                   key: MYSQL_DBAUDIT_PASSWORD
             {{- end }}
+            - name: MYSQL_HISTFILE
+              value: {{ .Values.conf.database.mysql_histfile }}
           ports:
             - name: mysql
               protocol: TCP

mariadb/values.yaml

@@ -320,6 +320,7 @@ conf:
       days_to_keep: 14
       storage_policy: default-placement
   database:
+    mysql_histfile: "/dev/null"
     my: |
       [mysqld]
       datadir=/var/lib/mysql

releasenotes/notes/mariadb.yaml

@@ -11,4 +11,5 @@ mariadb:
   - 0.1.8 Change Issuer to ClusterIssuer with logic in place to support cert-manager versioning
   - 0.1.9 Uplift Mariadb-ingress to 0.42.0
   - 0.1.10 Rename mariadb backup identities
+  - 0.1.11 Disable mariadb mysql history client logging
 ...