Expose nodepool-builder worker settings

This allows a user to tweak nodepool-builder image workers over using
static settings.

Change-Id: I54c879e1607d960629a2ed64efddff99491b6440
Depends-On: I5268e0ca34ab91ffae7a203ca710eecf571585e5
Signed-off-by: Paul Belanger <pabelanger@redhat.com>

manifests/builder.pp

@@ -19,6 +19,8 @@ class nodepool::builder(
   $image_log_document_root = '/var/log/nodepool/image',
   $builder_logging_conf_template = 'nodepool/nodepool-builder.logging.conf.erb',
   $environment = {},
+  $build_workers = '1',
+  $upload_workers = '4',
 ) {
 
   file { '/etc/init.d/nodepool-builder':

manifests/init.pp

@@ -36,6 +36,8 @@ class nodepool (
   $logging_conf_template = 'nodepool/nodepool.logging.conf.erb',
   $builder_logging_conf_template = 'nodepool/nodepool-builder.logging.conf.erb',
   $jenkins_masters = [],
+  $build_workers = '1',
+  $upload_workers = '4',
 ) {
 
 
@@ -334,6 +336,7 @@ class nodepool (
     statsd_host                   => $statsd_host,
     environment                   => $environment,
     builder_logging_conf_template => $builder_logging_conf_template,
+    build_workers                 => $build_workers,
+    upload_workers                => $upload_workers,
   }
-
 }

templates/nodepool-builder.default.erb

@@ -5,4 +5,4 @@ export STATSD_PORT=8125
 <% @environment.keys.sort.each do |key| -%>
 export <%= key %>='<%= @environment[key] %>'
 <% end -%>
-DAEMON_ARGS="-c /etc/nodepool/nodepool.yaml -l /etc/nodepool/builder-logging.conf"
+DAEMON_ARGS="-c /etc/nodepool/nodepool.yaml -l /etc/nodepool/builder-logging.conf --build-workers <%= @build_workers %> --upload-workers <%= @upload_workers %>"