[loadgen] Wait before workspace termination

Author: Furisto

dev/loadgen/README.md

@@ -13,7 +13,7 @@ You can find a short explanation of this tool in this [loom video](https://www.l
 `gpctl clusters get-tls-config`
 - Port-forward ws-manager
 `kubectl port-forward deployment/ws-manager 12001:8080`
-- Now you can start the benchmark with loadgen. If you want to keep the workspaces around after testing, add --interactive. Loadgen will then ask you before taking any destructive action.
+- Now you can start the benchmark with loadgen. If you want to keep the workspaces around after testing, add --interactive. Loadgen will then ask you before taking any destructive action. If you do not specify `--interative` loadgen will wait 2 minutes before workspaces are deleted.
 `loadgen benchmark [config-file] --host localhost:12001 --tls ./wsman-tls --interactive`
 
 In order to configure the benchmark, you can use the configuration file

dev/loadgen/cmd/benchmark.go

@@ -152,7 +152,7 @@ var benchmarkCommand = &cobra.Command{
 				}
 			},
 			Termination: func(executor loadgen.Executor) error {
-				return handleWorkspaceDeletion(scenario.StoppingTimeout, executor)
+				return handleWorkspaceDeletion(scenario.StoppingTimeout, executor, false)
 			},
 		}
 
@@ -165,7 +165,7 @@ var benchmarkCommand = &cobra.Command{
 			// cancel workspace creation so that no new workspaces are created while we are deleting them
 			scancel()
 
-			if err := handleWorkspaceDeletion(scenario.StoppingTimeout, session.Executor); err != nil {
+			if err := handleWorkspaceDeletion(scenario.StoppingTimeout, session.Executor, true); err != nil {
 				log.Warnf("could not delete workspaces: %v", err)
 				os.Exit(1)
 			}
@@ -198,21 +198,21 @@ type BenchmarkScenario struct {
 	WorkspaceClass  string                     `json:"workspaceClass"`
 }
 
-func handleWorkspaceDeletion(timeout string, executor loadgen.Executor) error {
+func handleWorkspaceDeletion(timeout string, executor loadgen.Executor, canceled bool) error {
 	if runOpts.Interactive {
 		if !confirmDeletion() {
 			return nil
 		}
 
-		if err := stopWorkspaces(timeout, executor); err != nil {
-			return err
-		}
+		return stopWorkspaces(timeout, executor)
 	} else {
-		if err := stopWorkspaces(timeout, executor); err != nil {
-			return err
+		if !canceled {
+			fmt.Println("Waiting for 2 minutes before deleting workspaces")
+			time.Sleep(2 * time.Minute)
 		}
+
+		return stopWorkspaces(timeout, executor)
 	}
-	return nil
 }
 
 func confirmDeletion() bool {