Modify the definition of Neutron cluster when Contrail is installed

This change removes the Neutron agents AFD when Contrail plugin is used
to avoid reporting a DOWN status for Neutron. It also removes the
collect of the metrics of the Neutron agents.

Change-Id: I02ecb67489d244aca85bc4b1e3d4a5cd79df1b5b
Closes-Bug: #1546017
(cherry picked from commit 7d86ec48e6)

deployment_scripts/puppet/manifests/controller.pp

@@ -24,6 +24,7 @@ $rabbit          = hiera_hash('rabbit')
 $management_vip  = hiera('management_vip')
 $storage_options = hiera_hash('storage', {})
 $murano          = hiera_hash('murano')
+$contrail        = hiera('contrail', false)
 
 if $ceilometer['enabled'] {
   $notification_topics = ['notifications', 'lma_notifications']
@@ -342,12 +343,14 @@ if $lma_collector['influxdb_mode'] != 'disabled' {
     downtime_factor => 2,
   }
 
-  lma_collector::collectd::dbi_services { 'neutron':
-    username        => 'neutron',
-    dbname          => 'neutron',
-    password        => $neutron['database']['passwd'],
-    report_interval => 15,
-    downtime_factor => 4,
+  unless $contrail {
+    lma_collector::collectd::dbi_services { 'neutron':
+      username        => 'neutron',
+      dbname          => 'neutron',
+      password        => $neutron['database']['passwd'],
+      report_interval => 15,
+      downtime_factor => 4,
+    }
   }
 
   class { 'lma_collector::collectd::haproxy':

deployment_scripts/puppet/manifests/hiera_override.pp

@@ -19,6 +19,7 @@ if ($plugin_data) {
   $tls_enabled = hiera('public_ssl', false)
   $ceilometer = hiera_hash('ceilometer', {})
   $ceilometer_enabled = pick($ceilometer['enabled'], false)
+  $contrail_plugin = hiera('contrail', false)
 
   $elasticsearch_mode = $plugin_data['elasticsearch_mode']
   $monitor_elasticsearch = $elasticsearch_mode ? {

deployment_scripts/puppet/modules/fuel_lma_collector/templates/gse_filters.yaml.erb

@@ -522,10 +522,12 @@ lma_collector:
         members:
           - neutron-logs
           - neutron-api
+<% if not @contrail_plugin then -%>
           - neutron-l3
           - neutron-dhcp
           - neutron-metadata
           - neutron-openvswitch
+<% end -%>
           - controller
         hints:
           - keystone

doc/user/source/metrics/openstack.rst

@@ -149,6 +149,8 @@ These metrics are retrieved from the Neutron database.
 
 .. _network-agent-state-metrics:
 
+.. note:: These metrics are not collected when the Contrail plugin is deployed.
+
 * ``openstack_neutron_agents``, the total number of Neutron agents by service
   and state. The metric contains ``service`` (one of 'dhcp', 'l3', 'metadata'
   or 'openvswitch') and ``state`` (one of 'up', 'down' or 'disabled') fields.