feat(mariadb): do not hardcode image version

Use the operator's default instead but allow the user to specify one.

Author: skrobul

components/openstack/templates/mariadb-instance.yaml.tpl

@@ -10,8 +10,9 @@ spec:
   rootPasswordSecretKeyRef:
 {{ toYaml .Values.mariadb.rootPasswordSecretKeyRef | indent 4 }}
 
-  # renovate: datasource=docker
-  image: docker-registry1.mariadb.com/library/mariadb:11.4.4
+{{- if .Values.mariadb.image }}
+  image: {{ .Values.mariadb.image }}
+{{- end }}
   imagePullPolicy: IfNotPresent
 
   port: 3306

components/openstack/values.schema.json

@@ -106,6 +106,10 @@
           },
           "additionalProperties": false
         },
+        "image": {
+          "type": "string",
+          "description": "container image to be used for MariaDB server pods"
+        },
         "galera": {
           "type": "object",
           "properties": {

components/openstack/values.yaml

@@ -27,6 +27,8 @@ mariadb:
       resources:
         requests:
           storage: 10Gi
+  # optional, defaults to operator's image
+  # image: docker-registry1.mariadb.com/library/mariadb:11.4.4
 
   # -- galera settings
   galera: