Add statsd configuration to zuul.

And allow zuul to send to statsd.

Change-Id: Ie9f78268a673523c4ea4025bdbbe40d8d3819398
Reviewed-on: https://review.openstack.org/18658
Reviewed-by: Jeremy Stanley <fungi@yuggoth.org>
Approved: James E. Blair <corvus@inaugust.com>
Tested-by: Jenkins

manifests/site.pp

@@ -103,7 +103,8 @@ node 'graphite.openstack.org' {
     graphite_admin_user     => hiera('graphite_admin_user'),
     graphite_admin_email    => hiera('graphite_admin_email'),
     graphite_admin_password => hiera('graphite_admin_password'),
-    statsd_hosts            => ['jenkins.openstack.org'],
+    statsd_hosts            => ['jenkins.openstack.org',
+                                'zuul.openstack.org'],
   }
 }
 
@@ -197,6 +198,7 @@ node 'zuul.openstack.org' {
     zuul_ssh_private_key => hiera('jenkins_ssh_private_key_contents'),
     url_pattern          => 'http://logs.openstack.org/{change.number}/{change.patchset}/{pipeline.name}/{job.name}/{build.number}',
     sysadmins            => hiera('sysadmins'),
+    statsd_host          => 'graphite.openstack.org',
   }
 }
 

modules/openstack_project/manifests/zuul.pp

@@ -10,7 +10,8 @@ class openstack_project::zuul(
   $gerrit_user = '',
   $zuul_ssh_private_key = '',
   $url_pattern = '',
-  $sysadmins = []
+  $sysadmins = [],
+  $statsd_host = ''
 ) {
 
   $rules = [ "-m state --state NEW -m tcp -p tcp --dport 8001 -s ${jenkins_host} -j ACCEPT" ]

modules/zuul/manifests/init.pp

@@ -12,7 +12,8 @@ class zuul (
   $url_pattern = '',
   $status_url = "https://${::fqdn}/",
   $git_source_repo = 'https://github.com/openstack-infra/zuul.git',
-  $push_change_refs = false
+  $push_change_refs = false,
+  $statsd_host = ''
 ) {
   include apache
 
@@ -46,6 +47,12 @@ class zuul (
     }
   }
 
+  package { 'statsd':
+    ensure   => latest,  # okay to use latest for pip
+    provider => pip,
+    require  => Class[pip],
+  }
+
   user { 'zuul':
     ensure     => present,
     home       => '/home/zuul',
@@ -103,6 +110,12 @@ class zuul (
     ],
   }
 
+  file { '/etc/default/zuul':
+    ensure  => present,
+    mode    => '0444',
+    content => template('zuul/zuul.default.erb'),
+  }
+
   file { '/var/log/zuul':
     ensure  => directory,
     owner   => 'zuul',

modules/zuul/templates/zuul.default.erb

@@ -0,0 +1,4 @@
+<% if scope.lookupvar("zuul::statsd_host") != "" %>
+export STATSD_HOST=<%= scope.lookupvar("zuul::statsd_host") %>
+export STATSD_PORT=8125
+<% end %>