Most K8S deployments do not use the outputs in downstream stages. So, if it is not used

users can skip the output of the Deployment Manifest and Run Job (Manifest) stage by
specifiying the attribute noOutput set to false in the stage json.

This significantly reduces the execution context being saved in redis/databse or
sent to the browser.

Author: Nirmalyasen

orca-clouddriver/src/main/groovy/com/netflix/spinnaker/orca/clouddriver/pipeline/job/RunJobStage.java

@@ -16,9 +16,12 @@
 
 package com.netflix.spinnaker.orca.clouddriver.pipeline.job;
 
+import static java.util.Collections.emptyMap;
+
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.netflix.spinnaker.orca.api.pipeline.CancellableStage;
 import com.netflix.spinnaker.orca.api.pipeline.graph.StageDefinitionBuilder;
+import com.netflix.spinnaker.orca.api.pipeline.graph.StageGraphBuilder;
 import com.netflix.spinnaker.orca.api.pipeline.graph.TaskNode;
 import com.netflix.spinnaker.orca.api.pipeline.models.StageExecution;
 import com.netflix.spinnaker.orca.clouddriver.tasks.artifacts.ConsumeArtifactTask;
@@ -76,6 +79,12 @@ public void taskGraph(@Nonnull StageExecution stage, @Nonnull TaskNode.Builder b
     }
   }
 
+  public void afterStages(@Nonnull StageExecution stage, @Nonnull StageGraphBuilder graph) {
+    if (stage.getContext().getOrDefault("noOutput", "false").toString().equals("true")) {
+      stage.setOutputs(emptyMap());
+    }
+  }
+
   @Override
   public Result cancel(StageExecution stage) {
     log.info(

orca-clouddriver/src/main/groovy/com/netflix/spinnaker/orca/clouddriver/pipeline/manifest/DeployManifestStage.java

@@ -18,6 +18,7 @@
 package com.netflix.spinnaker.orca.clouddriver.pipeline.manifest;
 
 import static com.google.common.collect.ImmutableList.toImmutableList;
+import static java.util.Collections.emptyMap;
 
 import com.google.common.collect.ImmutableList;
 import com.netflix.spinnaker.orca.api.pipeline.graph.StageDefinitionBuilder;
@@ -80,6 +81,9 @@ public void afterStages(@Nonnull StageExecution stage, @Nonnull StageGraphBuilde
           // do nothing
       }
     }
+    if (stage.getContext().getOrDefault("noOutput", "false").toString().equals("true")) {
+      stage.setOutputs(emptyMap());
+    }
   }
 
   private void disableOldManifests(Map<String, Object> parentContext, StageGraphBuilder graph) {