[DMAAP] Don't hardcode mariadb-galera password

Let's use common secret template to generate user credentials for
DMAAP data router DB DB and depend on mariadb-galera to generate
secure enough root password.

Issue-ID: OOM-2287
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Change-Id: I82d22a2db2dc9fba655f99f837be689f4a32a871
diff --git a/kubernetes/dmaap/components/dmaap-dr-prov/templates/secret.yaml b/kubernetes/dmaap/components/dmaap-dr-prov/templates/secret.yaml
new file mode 100644
index 0000000..dee311c
--- /dev/null
+++ b/kubernetes/dmaap/components/dmaap-dr-prov/templates/secret.yaml
@@ -0,0 +1,15 @@
+# Copyright © 2020 Samsung Electronics
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#       http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+{{ include "common.secret" . }}