Adds host to physical server relationship

app/controllers/api/physical_servers_controller.rb

@@ -0,0 +1,22 @@
+module Api
+  class PhysicalServersController < BaseController
+    def show
+      if params[:c_id]
+        physical_server = PhysicalServer.find(params[:c_id])
+        response_payload = physical_server.as_json
+        response_payload['host_id'] = case physical_server.host
+                                      when nil then nil
+                                      else physical_server.host.id
+                                      end
+
+        render :json=> response_payload
+      else
+        super
+      end
+    end
+
+    def server_ident(server)
+      "Server instance: #{server.id} name:'#{server.name}'"
+    end
+  end
+end

app/models/host.rb

@@ -91,6 +91,9 @@ class Host < ApplicationRecord
   has_many                  :host_aggregate_hosts, :dependent => :destroy
   has_many                  :host_aggregates, :through => :host_aggregate_hosts
 
+  # Physical server reference
+  belongs_to :physical_server, :inverse_of => :host
+
   serialize :settings, Hash
 
   deprecate_attribute :address, :hostname

app/models/physical_server.rb

@@ -5,6 +5,8 @@ class PhysicalServer < ApplicationRecord
 
   belongs_to :ext_management_system, :foreign_key => :ems_id, :class_name => "ManageIQ::Providers::PhysicalInfraManager"
 
+  has_one :host, inverse_of => :physical_server
+
   def name_with_details
     details % {
       :name => name,