[COMMON] Provide convenience templates for mariadb secrets

Usage of plain strings is very fragile especially when you try
to change them. That's why instead of depending on strings let's
just define a few convenience templates to be used in projects
that use mariadb-galera chart.

Issue-ID: OOM-2249
Change-Id: Ib867d34090b06a15ea3898a9524f5e3d04a656c0
Signed-off-by: Krzysztof Opasiak <k.opasiak@samsung.com>
diff --git a/kubernetes/common/mariadb-init/templates/_mariadb.tpl b/kubernetes/common/mariadb-init/templates/_mariadb.tpl
index 64c15ed..af9a4f5 100644
--- a/kubernetes/common/mariadb-init/templates/_mariadb.tpl
+++ b/kubernetes/common/mariadb-init/templates/_mariadb.tpl
@@ -18,5 +18,5 @@
   Choose the name of the mariadb secret to use.
 */}}
 {{- define "mariadbInit.mariadbClusterSecret" -}}
-  {{- printf "%s-%s-db-root-password" (include "common.release" .) (default "mariadb-galera" .Values.global.mariadbGalera.nameOverride) -}}
+  {{- include "common.mariadb.secret.rootPassSecretName" (dict "dot" . "chartName" (default "mariadb-galera" .Values.global.mariadbGalera.nameOverride)) -}}
 {{- end -}}