Make local backup of pg_hba.conf file before modification

postgres/defaults.yaml

@@ -20,7 +20,6 @@ postgres:
 
   conf_dir: /var/lib/pgsql/data
   postgresconf: ""
-  postgresconf_backup: '.bak'
 
   pg_hba.conf: salt://postgres/templates/pg_hba.conf.j2
   acls:
@@ -31,6 +30,8 @@ postgres:
     # IPv6 local connections:
     - ['host', 'all', 'all', '::1/128', 'md5']
 
+  config_backup: '.bak'
+
   service: postgresql
 
   bake_image: False