Add support for container sharder

This patch ensure that the swift-container-sharder service is started,
and provides all the facility (ie: parameters) to configure the sharder.

Change-Id: I0db7479e8634038871ce65990fd0104841d2010c

manifests/params.pp

@@ -27,6 +27,7 @@ class swift::params {
       $container_auditor_service_name    = 'swift-container-auditor'
       $container_replicator_service_name = 'swift-container-replicator'
       $container_updater_service_name    = 'swift-container-updater'
+      $container_sharder_service_name    = 'swift-container-sharder'
       $container_sync_service_name       = 'swift-container-sync'
       $container_reconciler_service_name = 'swift-container-reconciler'
       $account_package_name              = 'swift-account'
@@ -54,6 +55,7 @@ class swift::params {
       $container_auditor_service_name    = 'openstack-swift-container-auditor'
       $container_replicator_service_name = 'openstack-swift-container-replicator'
       $container_updater_service_name    = 'openstack-swift-container-updater'
+      $container_sharder_service_name    = 'openstack-swift-container-sharder'
       $container_sync_service_name       = 'openstack-swift-container-sync'
       $container_reconciler_service_name = 'openstack-swift-container-reconciler'
       $account_package_name              = 'openstack-swift-account'
@@ -88,6 +90,7 @@ module ${module_name} only support osfamily RedHat and Debian")
     'swift-container-auditor',
     'swift-container-replicator',
     'swift-container-server',
+    'swift-container-sharder',
     'swift-container-sync',
     'swift-container-updater',
     'swift-container-reconciler',

manifests/storage/container.pp

@@ -80,4 +80,14 @@ class swift::storage::container(
     service_require        => Package['swift-container'],
     service_subscribe      => Concat["/etc/swift/${config_file_name}"],
   }
+
+  swift::service { 'swift-container-sharder':
+    os_family_service_name => $::swift::params::container_sharder_service_name,
+    service_ensure         => $service_ensure,
+    enabled                => $enabled,
+    config_file_name       => $config_file_name,
+    service_provider       => $service_provider,
+    service_require        => Package['swift-container'],
+    service_subscribe      => Concat["/etc/swift/${config_file_name}"],
+  }
 }

manifests/storage/server.pp

@@ -177,6 +177,20 @@
 #   (optional) Number of MB allocated for the cache.
 #   Defaults to 512, which is the swift default value.
 #
+# [*container_sharder_auto_shard*]
+#   (optional) If the auto_shard option is true then the sharder will
+#   automatically select containers to shard, scan for shard ranges,
+#   and select shards to shrink.
+#   Default to false.
+#
+# [*container_sharder_concurrency*]
+#   (optional) Number of replication workers to spawn.
+#   Default to 8.
+#
+# [*container_sharder_interval*]
+#   (optional) Time in seconds to wait between sharder cycles.
+#   Default to 30.
+#
 # DEPRECATED PARAMETERS
 #
 # [*allow_versions*]
@@ -224,6 +238,11 @@ define swift::storage::server(
   $rsync_bwlimit                  = 0,
   $splice                         = false,
   $object_server_mb_per_sync      = 512,
+  # These parameters only apply to container-server.conf,
+  # and define options for the container-sharder service.
+  $container_sharder_auto_shard   = false,
+  $container_sharder_concurrency  = 8,
+  $container_sharder_interval     = 30,
   # DEPRECATED PARAMETERS
   $allow_versions                 = undef,
 ) {

releasenotes/notes/container-sharder-7b000d34210dbe08.yaml

@@ -0,0 +1,5 @@
+---
+features:
+  - |
+    Now puppet-swift supports configurations required by the container-sharder
+    service.

templates/container-server.conf.erb

@@ -51,3 +51,6 @@ concurrency = <%= @updater_concurrency %>
 [container-sync]
 
 [container-sharder]
+auto_shard = <%= @container_sharder_auto_shard %>
+concurrency = <%= @container_sharder_concurrency %>
+interval = <%= @container_sharder_interval %>