Allow nova::rabbitmq to be disabled.

This commit adds the parameter enabled to the class nova::rabbitmq.
This parameter was added to allow this service to be deployed as
passive in an active-passive HA cluster.

This commit also adds test coverage to the nova::rabbitmq class.

It also adds the rabbitmq module as a dependency.y

.fixtures.yml

@@ -5,5 +5,6 @@ fixtures:
     "mysql": "git://github.com/puppetlabs/puppetlabs-mysql.git"
     "stdlib": "git://github.com/puppetlabs/puppetlabs-stdlib.git"
     "sysctl": "git://github.com/duritong/puppet-sysctl.git"
+    "rabbitmq": "git://github.com/puppetlabs/puppetlabs-rabbitmq.git"
   symlinks:
     "nova": "#{source_dir}"

manifests/rabbitmq.pp

@@ -6,36 +6,47 @@ class nova::rabbitmq(
   $userid='guest',
   $password='guest',
   $port='5672',
-  $virtual_host='/'
+  $virtual_host='/',
+  $enabled = true
 ) {
 
   # only configure nova after the queue is up
   Class['rabbitmq::service'] -> Anchor<| title == 'nova-start' |>
 
-  if $userid == 'guest' {
-    $delete_guest_user = false
-  } else {
-    $delete_guest_user = true
-    rabbitmq_user { $userid:
-      admin     => true,
-      password  => $password,
-      provider => 'rabbitmqctl',
-      require   => Class['rabbitmq::server'],
+  if ($enabled) {
+    if $userid == 'guest' {
+      $delete_guest_user = false
+    } else {
+      $delete_guest_user = true
+      rabbitmq_user { $userid:
+        admin     => true,
+        password  => $password,
+        provider => 'rabbitmqctl',
+        require   => Class['rabbitmq::server'],
+      }
+      # I need to figure out the appropriate permissions
+      rabbitmq_user_permissions { "${userid}@${virtual_host}":
+        configure_permission => '.*',
+        write_permission     => '.*',
+        read_permission      => '.*',
+        provider             => 'rabbitmqctl',
+      }->Anchor<| title == 'nova-start' |>
     }
-    # I need to figure out the appropriate permissions
-    rabbitmq_user_permissions { "${userid}@${virtual_host}":
-      configure_permission => '.*',
-      write_permission     => '.*',
-      read_permission      => '.*',
-      provider             => 'rabbitmqctl',
-    }->Anchor<| title == 'nova-start' |>
+    $service_ensure = 'running'
+  } else {
+    $service_ensure = 'stopped'
   }
+
   class { 'rabbitmq::server':
+    service_ensure    => $service_ensure,
     port              => $port,
     delete_guest_user => $delete_guest_user,
   }
-  rabbitmq_vhost { $virtual_host:
-    provider => 'rabbitmqctl',
-    require => Class['rabbitmq::server'],
+
+  if ($enabled) {
+    rabbitmq_vhost { $virtual_host:
+      provider => 'rabbitmqctl',
+      require => Class['rabbitmq::server'],
+    }
   }
 }

spec/classes/nova_rabbitmq_spec.rb

@@ -0,0 +1,79 @@
+require 'spec_helper'
+
+describe 'nova::rabbitmq' do
+
+  let :facts do
+    {:puppetversion => '2.7'}
+  end
+
+  describe 'with defaults' do
+  
+    it 'should contain all of the default resources' do
+  
+      should contain_class('rabbitmq::server').with(
+        :service_ensure    => 'running',
+        :port              => '5672',
+        :delete_guest_user => false
+      )
+    
+      should contain_rabbitmq_vhost('/').with(
+        :provider => 'rabbitmqctl'
+      )
+    end
+
+  end
+
+  describe 'when a rabbitmq user is specified' do
+
+    let :params do
+      {
+        :userid   => 'dan',
+        :password => 'pass'
+      }
+    end
+
+    it 'should contain user and permissions' do
+
+      should contain_rabbitmq_user('dan').with(
+        :admin    => true,
+        :password => 'pass',
+        :provider => 'rabbitmqctl'
+      )
+  
+      should contain_rabbitmq_user_permissions('dan@/').with(
+        :configure_permission => '.*',
+        :write_permission     => '.*',
+        :read_permission      => '.*',
+        :provider             => 'rabbitmqctl'
+      )
+
+    end
+
+  end
+
+  describe 'when disabled' do
+    let :params do
+      {
+        :userid   => 'dan',
+        :password => 'pass',
+        :enabled  => false
+      }
+    end
+
+    it 'should be disabled' do
+
+      should_not contain_rabbitmq_user('dan')
+      should_not contain_rabbitmq_user_permissions('dan@/')
+      should contain_class('rabbitmq::server').with(
+        :service_ensure    => 'stopped',
+        :port              => '5672',
+        :delete_guest_user => false
+      )
+    
+      should_not contain_rabbitmq_vhost('/')
+
+    end
+  end
+
+
+end