Add CORS configuration support

Change-Id: I2ec2f8d2146e8a067aadc97f5997aa40ad8d4812

spec/classes/nova_cors_spec.rb

@@ -0,0 +1,49 @@
+require 'spec_helper'
+
+describe 'nova::cors' do
+
+  shared_examples_for 'nova cors' do
+    it 'configure cors default params' do
+      is_expected.to contain_nova_config('cors/allowed_origin').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_nova_config('cors/allow_credentials').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_nova_config('cors/expose_headers').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_nova_config('cors/max_age').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_nova_config('cors/allow_methods').with_value('<SERVICE DEFAULT>')
+      is_expected.to contain_nova_config('cors/allow_headers').with_value('<SERVICE DEFAULT>')
+    end
+
+    context 'with specific parameters' do
+      let :params do
+        { :allowed_origin    => '*',
+          :allow_credentials => true,
+          :expose_headers    => 'Content-Language,Expires',
+          :max_age           => 3600,
+          :allow_methods     => 'GET,POST,PUT,DELETE,OPTIONS',
+          :allow_headers     => 'Content-Type,Cache-Control',
+        }
+      end
+
+      it 'configure cors params' do
+        is_expected.to contain_nova_config('cors/allowed_origin').with_value('*')
+        is_expected.to contain_nova_config('cors/allow_credentials').with_value(true)
+        is_expected.to contain_nova_config('cors/expose_headers').with_value('Content-Language,Expires')
+        is_expected.to contain_nova_config('cors/max_age').with_value(3600)
+        is_expected.to contain_nova_config('cors/allow_methods').with_value('GET,POST,PUT,DELETE,OPTIONS')
+        is_expected.to contain_nova_config('cors/allow_headers').with_value('Content-Type,Cache-Control')
+      end
+    end
+  end
+
+  on_supported_os({
+    :supported_os   => OSDefaults.get_supported_os
+  }).each do |os,facts|
+    context "on #{os}" do
+      let (:facts) do
+        facts.merge!(OSDefaults.get_facts())
+      end
+
+      it_behaves_like 'nova cors'
+    end
+  end
+
+end