Set os_region_name with ceilometer region

Change-Id: Ia4b73df9380d4dbc5038428adf340ecdae601c69
Closes-Bug: #1357461

CHANGELOG.md

@@ -5,6 +5,7 @@ This file is used to list changes made in each version of the openstack-metering
 ## 10.0.1
 * Support vmware hypervisor
 * Sync conf files with Juno
+* Set os_region_name properly
 
 ## 10.0.0
 * Upgrading to Juno

spec/common_spec.rb

@@ -61,6 +61,11 @@ describe 'openstack-telemetry::common' do
           /^sample_source = openstack$/)
       end
 
+      it 'has default os_region_name set' do
+        expect(chef_run).to render_file(file.name).with_content(
+          /^os_region_name = RegionOne$/)
+      end
+
       it 'has sample_source set' do
         node.set['openstack']['telemetry']['sample_source'] = 'RegionOne'
         expect(chef_run).to render_file(file.name).with_content(

templates/default/ceilometer.conf.erb

@@ -88,3 +88,6 @@ api_retry_count = <%= node['openstack']['compute']['vmware']['api_retry_count']
 wsdl_location = <%= node['openstack']['compute']['vmware']['wsdl_location'] %>
   <% end %>
 <% end %>
+
+[service_credentials]
+os_region_name = <%= node['openstack']['telemetry']['region'] %>