Update create db user queries

Using GRANT to create users was deprecated in 5.7. The current
query to create user fails with new versions of mysql.

Change-Id: If991778763dc0961508e8466244955fd71b47591

helm-toolkit/Chart.yaml

@@ -15,7 +15,7 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm Helm-Toolkit
 name: helm-toolkit
-version: 0.2.52
+version: 0.2.53
 home: https://docs.openstack.org/openstack-helm
 icon: https://www.openstack.org/themes/openstack/images/project-mascots/OpenStack-Helm/OpenStack_Project_OpenStackHelm_vertical.png
 sources:

helm-toolkit/templates/scripts/_db-init.py.tpl

@@ -133,8 +133,10 @@ except:
 # Create DB User
 try:
     root_engine.execute(
-        "GRANT ALL ON `{0}`.* TO \'{1}\'@\'%%\' IDENTIFIED BY \'{2}\' {3}".format(
-            database, user, password, mysql_x509))
+        "CREATE USER IF NOT EXISTS \'{0}\'@\'%%\' IDENTIFIED BY \'{1}\' {2}".format(
+            user, password, mysql_x509))
+    root_engine.execute(
+        "GRANT ALL ON `{0}`.* TO \'{1}\'@\'%%\'".format(database, user))
     logger.info("Created user {0} for {1}".format(user, database))
 except:
     logger.critical("Could not create user {0} for {1}".format(user, database))

releasenotes/notes/helm-toolkit.yaml

@@ -59,4 +59,5 @@ helm-toolkit:
   - 0.2.50 Allow tls for external ingress without specifying key and crt
   - 0.2.51 Added a random delay up to 300 seconds to remote backup upload/download for load spreading purpose
   - 0.2.52 Decreased random delay to up to 30 seconds and switched remote backup verification protocol to md5
+  - 0.2.53 Update create db user queries
 ...