Added check that the metadata proxy successfully deployed

Without this check neutron server on controller nodes tries to start
before metadata infrastructure gets initialized from task on
primary-controller and terminates with exception.

Change-Id: Ifaa559bb849a9b03e6bd4ecd379091302fc27385
Closes-bug: #1587074

deployment_scripts/puppet/manifests/gem-install.pp

@@ -1,6 +1,6 @@
 notice('fuel-plugin-nsxv: gem-install.pp')
 
 # ruby gem package must be pre installed before puppet module used
-package { 'ruby-rbvmomi':
+package { ['ruby-rbvmomi', 'ruby-rest-client', 'ruby-nokogiri']:
   ensure => latest,
 }

deployment_scripts/puppet/manifests/neutron-server-start.pp

@@ -68,4 +68,18 @@ if 'primary-controller' in hiera('roles') {
     subscribe   => Service['neutron-server'],
     refreshonly => true,
   }
+
+  $settings      = hiera($::nsxv::params::plugin_name)
+  $nsxv_ip       = $settings['nsxv_manager_host']
+  $nsxv_user     = $settings['nsxv_user']
+  $nsxv_password = $settings['nsxv_password']
+  $datacenter_id = $settings['nsxv_datacenter_moid']
+
+  class {'nsxv::neutron_server_check_md_proxy':
+    nsxv_ip       => $nsxv_ip,
+    nsxv_user     => $nsxv_user,
+    nsxv_password => $nsxv_password,
+    datacenter_id => $datacenter_id,
+    require       => [Service['neutron-server'],Exec['waiting-for-neutron-api']],
+  }
 }

deployment_scripts/puppet/modules/nsxv/files/check_md_proxy.rb

@@ -0,0 +1,65 @@
+#!/usr/bin/env ruby
+=begin
+Copyright 2016 Mirantis, Inc.
+
+Licensed under the Apache License, Version 2.0 (the "License"); you may
+not use this file except in compliance with the License. You may obtain
+copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+License for the specific language governing permissions and limitations
+under the License.
+
+The script looks for edge with "metadata_proxy_router" in the name and checks
+its state and edgeStatus. If "state=deployed" and "edgeStatus=green" then
+return code 0, otherwise 1.
+=end
+
+require 'rest-client'
+require 'nokogiri'
+
+ip = ARGV[0]
+user = ARGV[1]
+pass = ARGV[2]
+datacenter_id = ARGV[3]
+
+api_url = 'https://' + ip + '/api/4.0/edges/'
+list_edges_url = api_url + '?datacenter=' + datacenter_id
+
+# in worst case this scripts overall timeout is 15 seconds (3 tries * 5 second each try
+def get_nsxv_api(url, user, pass)
+  retry_count = 3
+  begin
+    response = RestClient::Request.execute(method: :get, url: url, timeout: 15, user: user, password: pass)
+    if response.code == 200
+      xml_response = Nokogiri::XML(response.body)
+    else
+      fail
+    end
+  rescue
+    retry_count -= 1
+    if retry_count > 0
+      sleep 5
+      retry
+    else
+      puts 'Can not get response for request ' + url
+      raise
+    end
+  end
+  return xml_response
+end
+
+# list all edges
+response = get_nsxv_api(list_edges_url, user, pass )
+response.xpath("//edgeSummary").each do |edge|
+  if /metadata_proxy_router*/i.match(edge.xpath("name").text)
+    if /deployed/i.match(edge.at_xpath("state").text) and /green/i.match(edge.at_xpath("edgeStatus").text)
+      exit 0
+    end
+  end
+end
+exit 1

deployment_scripts/puppet/modules/nsxv/manifests/neutron_server_check_md_proxy.pp

@@ -0,0 +1,21 @@
+class nsxv::neutron_server_check_md_proxy (
+  $nsxv_ip,
+  $nsxv_user,
+  $nsxv_password,
+  $datacenter_id,
+) {
+  file { '/tmp/check_md_proxy.rb':
+    ensure  => file,
+    mode    => '0755',
+    source  => "puppet:///modules/${module_name}/check_md_proxy.rb",
+    replace => true,
+  }
+  exec { 'check_md_proxy':
+    tries     => '30',
+    try_sleep => '30',
+    command   => "/usr/bin/env ruby /tmp/check_md_proxy.rb '${nsxv_ip}' '${nsxv_user}' '${nsxv_password}' '${datacenter_id}'",
+    provider  => 'shell',
+    logoutput => on_failure,
+    require   => File['/tmp/check_md_proxy.rb'],
+  }
+}