mysql dir fix

Change-Id: Ib63114f9c9e829796f0fc739b363328baf9cc689
diff --git a/xtrabackup/server.sls b/xtrabackup/server.sls
index 8eb1c6e..c910389 100644
--- a/xtrabackup/server.sls
+++ b/xtrabackup/server.sls
@@ -5,6 +5,17 @@
   pkg.installed:
   - names: {{ server.pkgs }}
 
+{%- set parent_backup_dir = salt['file.dirname'](server.backup_dir) %}
+
+{{  parent_backup_dir  }}:
+  file.directory:
+  - mode: 755
+  - user: root
+  - group: root
+  - makedirs: true
+  - require:
+    - pkg: xtrabackup_server_packages
+
 xtrabackup_user:
   user.present:
   - name: xtrabackup