[DATABASE] MariaDB de-clustering

Adjust chart behavior in case only one mariadb instance is present and replication is disabled.

Change-Id: Ifa540580cf9d5755b83dbb949555ec814dda2744

mariadb/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v10.2.31
 description: OpenStack-Helm MariaDB
 name: mariadb
-version: 0.2.12
+version: 0.2.13
 home: https://mariadb.com/kb/en/
 icon: http://badges.mariadb.org/mariadb-badge-180x60.png
 sources:

mariadb/templates/bin/_readiness.sh.tpl

@@ -36,7 +36,7 @@ mysql_status_query () {
 if ! $MYSQL -e 'select 1' > /dev/null 2>&1 ; then
   exit 1
 fi
-
+{{- if gt .Values.pod.replicas.server 1.0  }}
 if [ "x$(mysql_status_query wsrep_ready)" != "xON" ]; then
   # WSREP says the node can receive queries
   exit 1
@@ -56,3 +56,4 @@ if [ "x$(mysql_status_query wsrep_local_state_comment)" != "xSynced" ]; then
   # WSREP not synced
   exit 1
 fi
+{{- end }}

releasenotes/notes/mariadb.yaml

@@ -28,4 +28,5 @@ mariadb:
   - 0.2.10 Fix Python exceptions
   - 0.2.11 Enhance mariadb backup
   - 0.2.12 Remove set -x
+  - 0.2.13 Adjust readiness.sh in single node and no replication case
 ...