feat: add database generation to grafana

- ensure a database, user and credential is created for each grafana node
- ensure all databases for a region are included in a mariadb cluster
- refine params with stdlib types

site/profiles/manifests/sql/galera_member.pp

@@ -31,6 +31,7 @@ class profiles::sql::galera_member (
   String  $package_name             = 'mariadb-server',
   Boolean $epel_needed              = false,
   Boolean $manage_repo              = true,
+  Hash    $databases                = lookup('mysql::db'),
 ) {
 
   # check that the master is named
@@ -209,6 +210,20 @@ class profiles::sql::galera_member (
       override_options        => $merged_overrides,
     }
 
+    # import databases for this region
+    Mysql::Db <<| tag == $facts['region'] |>>
+
+    # create databases from hiera
+    $databases.each |$name, $data| {
+      mysql::db {$name:
+        * => $data,
+      }
+    }
+
+    # import users/grants for this region
+    Mysql_user <<| tag == $facts['region'] |>>
+    Mysql_grant <<| tag == $facts['region'] |>>
+
   }else{
     notice("${title} requires the servers_array to have 3 or more, currently it is ${length($servers_array)}.")
   }