Support to configure rsync max_connections and not use xinetd for rsync

Change-Id: I40f4e7f2c81cebf8213057a341ef81f7f3d09d1e

manifests/storage.pp

@@ -7,6 +7,10 @@
 # == Parameters
 #  [*storage_local_net_ip*] ip address that the swift servers should
 #    bind to. Required.
+#
+#  [*rsync_use_xinetd*] indicate if xinetd should be used to manage
+#  rsync service, Default to True.
+#
 # == Dependencies
 #
 # == Examples
@@ -20,14 +24,15 @@
 # Copyright 2011 Puppetlabs Inc, unless otherwise noted.
 #
 class swift::storage(
-  $storage_local_net_ip
+  $storage_local_net_ip,
+  $rsync_use_xinetd = true,
 ) {
 
   include swift::deps
 
   if !defined(Class['rsync::server']){
     class{ '::rsync::server':
-      use_xinetd => true,
+      use_xinetd => $rsync_use_xinetd,
       address    => $storage_local_net_ip,
       use_chroot => 'no',
     }

manifests/storage/all.pp

@@ -118,6 +118,10 @@
 #   version 3.0 or greater.
 #   Defaults to false.
 #
+# [*max_connections*]
+#   (optional) maximum number of simultaneous connections allowed for rsync.
+#   Defaults to 25.
+#
 class swift::storage::all(
   $storage_local_net_ip,
   $devices                        = '/srv/node',
@@ -147,6 +151,7 @@ class swift::storage::all(
   $object_server_workers          = $::os_workers,
   $object_server_mb_per_sync      = 512,
   $splice                         = false,
+  $max_connections                = 25,
 ) {
 
   include swift::deps
@@ -183,6 +188,7 @@ from 6002 to 6202 and will be changed in a later release')
     log_statsd_default_sample_rate => $log_statsd_default_sample_rate,
     log_statsd_sample_rate_factor  => $log_statsd_sample_rate_factor,
     log_statsd_metric_prefix       => $log_statsd_metric_prefix,
+    max_connections                => $max_connections,
   }
 
   swift::storage::server { "${account_port}":

releasenotes/notes/add_rsync_use_xinetd_and_max_connections-48c6b86b1bfed6f8.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Add rsync max_connections config and add rsync_use_xinetd
+    parameter to support to not use xinetd for rsync

spec/classes/swift_storage_all_spec.rb

@@ -17,7 +17,8 @@ describe 'swift::storage::all' do
       :log_facility    => 'LOG_LOCAL2',
       :incoming_chmod  => 'Du=rwx,g=rx,o=rx,Fu=rw,g=r,o=r',
       :outgoing_chmod  => 'Du=rwx,g=rx,o=rx,Fu=rw,g=r,o=r',
-      :log_requests => true
+      :log_requests    => true,
+      :max_connections => 25
     }
   end
 
@@ -45,7 +46,8 @@ describe 'swift::storage::all' do
        :log_facility         => ['LOG_LOCAL2', 'LOG_LOCAL3'],
        :incoming_chmod       => '0644',
        :outgoing_chmod       => '0644',
-       :log_requests => false
+       :log_requests         => false,
+       :max_connections      => 20
      }
     ].each do |param_set|
 
@@ -83,7 +85,8 @@ describe 'swift::storage::all' do
            :storage_local_net_ip => param_hash[:storage_local_net_ip],
            :incoming_chmod       => param_hash[:incoming_chmod],
            :outgoing_chmod       => param_hash[:outgoing_chmod],
-           :log_facility         => param_hash[:log_facility]
+           :log_facility         => param_hash[:log_facility],
+           :max_connections      => param_hash[:max_connections]
           }
         end
 

spec/classes/swift_storage_spec.rb

@@ -22,6 +22,22 @@ describe 'swift::storage' do
         )}
       end
 
+      describe 'when the rsync_use_xinetd is specified' do
+        let :params do
+          {
+            :storage_local_net_ip => '127.0.0.1',
+            :rsync_use_xinetd     => false,
+          }
+        end
+
+        it { is_expected.to contain_class('rsync::server').with(
+          {:use_xinetd => false,
+           :address    => params[:storage_local_net_ip],
+           :use_chroot => 'no'
+          }
+        )}
+      end
+
       describe 'when local net ip is not specified' do
         if Puppet::Util::Package.versioncmp(Puppet.version, '4.3.0') >= 0
           it_raises 'a Puppet::Error', /expects a value for parameter 'storage_local_net_ip'/