ignore empty stream templates

lib/kubetruth/etl.rb

@@ -221,8 +221,14 @@ def apply
                     parsed_ymls = YAML.safe_load_stream(resource_yml, template_id)
                     logger.debug {"Skipping empty template"} if parsed_ymls.empty?
                     parsed_ymls.each do |parsed_yml|
-                      async(annotation: "Apply Template: #{template_id}") do
+                      if parsed_yml.present?
+                        async(annotation: "Apply Template: #{template_id}") do
+                          kube_apply(parsed_yml) 
                         kube_apply(parsed_yml)
+                          kube_apply(parsed_yml) 
+                        end
+                      else
+                        logger.debug {"Skipping empty stream template"}
                       end
                     end
 

spec/kubetruth/etl_spec.rb

@@ -491,6 +491,19 @@ class ForceExit < Exception; end
         expect(Logging.contents).to match(/Skipping empty template/)
       end
 
+      it "skips empty streams in template" do
+        config.root_spec.resource_templates = {"name1" => Template.new("---\n\n---\n\n")}
+        allow(etl).to receive(:load_config).and_yield(@ns, config)
+
+        expect(collection).to receive(:names).and_return(["proj1"])
+
+        expect(etl).to_not receive(:kube_apply)
+
+        etl.apply()
+        expect(Logging.contents).to_not match(/Skipping empty template/)
+        expect(Logging.contents).to match(/Skipping empty stream template/)
+      end
+
       it "allows dryrun" do
         etl = described_class.new(dry_run: true)
         allow(etl).to receive(:load_config).and_yield(@ns, config)