fix(framework): Added missing deploy_environment to null framework

Even if framework is set to null, at least `RACK_ENV` needs to be set. This gives application the
hint, which environment is currently used - which the app can interpret or not.

Signed-off-by: Igor Rzegocki <igor@rzegocki.pl>

libraries/drivers_framework_null.rb

@@ -4,7 +4,11 @@ module Framework
     class Null < Drivers::Framework::Base
       adapter :null
       allowed_engines :null
-      output filter: []
+      output filter: [:deploy_environment]
+
+      def raw_out
+        super.merge(deploy_environment: { 'RACK_ENV' => globals[:environment] })
+      end
     end
   end
 end

spec/unit/libraries/drivers_framework_null_spec.rb

@@ -11,6 +11,7 @@
   end
 
   it 'returns proper out data' do
-    expect(described_class.new(dummy_context(node), aws_opsworks_app).out).to eq({})
+    expect(described_class.new(dummy_context(node), aws_opsworks_app).out)
+      .to eq(deploy_environment: { 'RACK_ENV' => 'staging' })
   end
 end