Add RabbitMQ Plugin Support

These plugins are modeled using a defined resource type named
rabbitmq::plugin.  They notify the service and require the package.
However, this is not ideal since the defined type is establishing
relationships to the resources inside the rabbitmq class.

I plan to refactor rabbitmq into rabbitmq::service to address this
issue.  Then, I'll be able to use class level relationships.

manifests/params.pp

@@ -24,15 +24,23 @@
 
   # This is the RabbitMQ Server Version
   if $version == 'UNSET' {
-    $version_real = '2.3.1-1'
+    $version_real = '2.3.1'
     $pkg_ensure   = 'present'
   } else {
     $version_real = $version
     $pkg_ensure   = $version
   }
 
-  $packages = [ 'rabbitmq-server' ]
-  $service  = 'rabbitmq-server'
+  case $operatingsystem {
+    centos, redhat, oel: {
+      $packages = 'rabbitmq-server'
+      $service  = 'rabbitmq-server'
+      $plugin_dir = "/usr/lib/rabbitmq/lib/rabbitmq_server-${version_real}/plugins"
+    }
+    default: {
+      fail("operatingsystem $operatingsystem is not supported")
+    }
+  }
 
 }
 

manifests/plugin.pp

@@ -0,0 +1,48 @@
+# Define: rabbitmq::plugin
+#
+#   This defined resource type manages plugins for RabbitMQ
+#
+# Parameters:
+#
+# Actions:
+#
+# Requires:
+#
+# Sample Usage:
+#
+define rabbitmq::plugin(
+  $ensure='UNSET',
+  $source='UNSET'
+) {
+
+  $plugin_dir = $::rabbitmq::params::plugin_dir
+  $service    = $::rabbitmq::params::service
+  $packages   = $::rabbitmq::params::packages
+
+  if $source == 'UNSET' {
+    $source_real = "puppet:///modules/rabbitmq/plugins/${name}"
+  } else {
+    $source_real = $source
+  }
+
+  if $ensure == 'UNSET' {
+    $ensure_real = 'present'
+  } else {
+    if $ensure in [ 'present', 'absent' ] {
+      $ensure_real = $ensure
+    } else {
+      fail("ensure must be present or absent.  Received: ${ensure}")
+    }
+  }
+
+  file { "${plugin_dir}/${name}":
+    ensure  => $ensure_real,
+    source  => $source_real,
+    owner   => '0',
+    group   => '0',
+    mode    => '0644',
+    require => Package[$packages],
+    notify  => Service[$service],
+  }
+
+}

tests/site.pp

@@ -1,8 +1,15 @@
 node default {
 
+	$rabbitmq_plugins = [ 'amqp_client-2.3.1.ez', 'rabbit_stomp-2.3.1.ez' ]
+
   class { 'rabbitmq':
     config => template('rabbitmq/rabbitmq.conf'),
   }
 
+  # Required for MCollective
+  rabbitmq::plugin { $rabbitmq_plugins:
+    ensure => present,
+  }
+
 }