Enable Manila in Packstack

Enables the configuration of the Manila File Share
Service in Packstack. Uses the puppet-manila module
for installation and configuration.

Change-Id: I4509c9fbdc9317e03b32964b7b02672439e306fc

packstack/puppet/templates/mariadb_manila_install.pp

@@ -0,0 +1,5 @@
+class { 'manila::db::mysql':
+  password      => hiera('CONFIG_MANILA_DB_PW'),
+  allowed_hosts => '%%',
+  charset       => 'utf8',
+}