Avoid hard-coding OS user/group in each manifest

and replace hard-codes by definition in params.pp .

Change-Id: I9c96dc528b86ab8243fffcf408e09876960f882f

manifests/db/sync.pp

@@ -6,21 +6,21 @@
 #
 # [*system_user*]
 #   (Optional) Run db_sync from this system user account.
-#   Default to ec2api
+#   Default to $::ec2api::params::user
 #
 # [*system_group*]
 #   (Optional) Run db_sync by this system group.
-#   Default to ec2api
+#   Default to $::ec2api::params::group
 #
 # [*db_sync_timeout*]
 #   (Optional) Timeout for the execution of the db_sync
 #   Defaults to 300
 #
 class ec2api::db::sync (
-  $system_user     = 'ec2api',
-  $system_group    = 'ec2api',
+  $system_user     = $::ec2api::params::user,
+  $system_group    = $::ec2api::params::group,
   $db_sync_timeout = 300,
-) {
+) inherits ec2api::params {
 
   include ec2api::deps
 

manifests/params.pp

@@ -5,7 +5,10 @@
 #
 class ec2api::params {
   include openstacklib::defaults
+
+  $user  = 'ec2api'
   $group = 'ec2api'
+
   case $::osfamily {
     'RedHat': {
       $package_name          = 'openstack-ec2-api'