ml2: Deprecate support for Nuage mechanism driver

It seems the Nuage plugin is no longer maintained[1].

[1] https://github.com/nuagenetworks/nuage-openstack-neutron/tree/master

Change-Id: I01133127859f16289aa3f1830ca8a1feff669404

lib/puppet/type/neutron_plugin_nuage.rb

@@ -3,7 +3,7 @@ Puppet::Type.newtype(:neutron_plugin_nuage) do
   ensurable
 
   newparam(:name, :namevar => true) do
-    desc 'Section/setting name to manage for nuage/plugin.ini'
+    desc 'Section/setting name to manage for nuage/plugin.ini (DEPRECATED)'
     newvalues(/\S+\/\S+/)
   end
 

manifests/plugins/ml2/nuage.pp

@@ -1,4 +1,5 @@
 #
+# DEPRECATED !!
 # Configure the Nuage plugin for neutron.
 #
 # === Parameters
@@ -60,6 +61,8 @@ class neutron::plugins::ml2::nuage (
   include neutron::deps
   include neutron::params
 
+  warning('Support for ml2 Nuage plugin has been deprecated.')
+
   file { '/etc/neutron/plugins/nuage':
     ensure => directory,
     tag    => 'neutron-config-file',

releasenotes/notes/deprecate-ml2-nuage-4e8e03b4f481acf1.yaml

@@ -0,0 +1,5 @@
+---
+deprecations:
+  - |
+    Support for ML2 Nuage plugin has been deprecated and will be removed in
+    a future release.