fix: fix missing artifacts for stopped workflows. Fixes #12401

cmd/argoexec/commands/wait.go

@@ -35,6 +35,9 @@ func waitContainer(ctx context.Context) error {
 	defer stats.LogStats()
 	stats.StartStatsTicker(5 * time.Minute)
 
+	// Create a new empty (placeholder) task result with LabelKeyReportOutputsCompleted set to false.
+	wfExecutor.InitializeOutput(bgCtx)
+
 	// Wait for main container to complete
 	err := wfExecutor.Wait(ctx)
 	if err != nil {

docs/fields.md

@@ -861,7 +861,7 @@ WorkflowStatus contains overall status information about a workflow
 |`storedTemplates`|[`Template`](#template)|StoredTemplates is a mapping between a template ref and the node's status.|
 |`storedWorkflowTemplateSpec`|[`WorkflowSpec`](#workflowspec)|StoredWorkflowSpec stores the WorkflowTemplate spec for future execution.|
 |`synchronization`|[`SynchronizationStatus`](#synchronizationstatus)|Synchronization stores the status of synchronization locks|
-|`taskResultsCompleted`|`Map< boolean , string >`|Have task results been completed? (mapped by Pod name) used to prevent premature garbage collection of artifacts.|
+|`taskResultsCompletionStatus`|`Map< boolean , string >`|TaskResultsCompletionStatus tracks task result completion status (mapped by pod name). Used to prevent premature archiving and garbage collection.|
 
 ## CronWorkflowSpec
 

pkg/apis/workflow/v1alpha1/workflow_types.go

@@ -1944,29 +1944,31 @@ type WorkflowStatus struct {
 	// ArtifactGCStatus maintains the status of Artifact Garbage Collection
 	ArtifactGCStatus *ArtGCStatus `json:"artifactGCStatus,omitempty" protobuf:"bytes,19,opt,name=artifactGCStatus"`
 
-	// Have task results been completed? (mapped by Pod name) used to prevent premature garbage collection of artifacts.
-	TaskResultsCompleted map[string]bool `json:"taskResultsCompleted,omitempty" protobuf:"bytes,20,opt,name=taskResultsCompleted"`
+	// TaskResultsCompletionStatus tracks task result completion status (mapped by pod name). Used to prevent premature archiving and garbage collection.
+	TaskResultsCompletionStatus map[string]bool `json:"taskResultsCompletionStatus,omitempty" protobuf:"bytes,20,opt,name=taskResultsCompletionStatus"`
 }
 
-func (ws *WorkflowStatus) InitializeTaskResultIncomplete(resultName string) {
-	if ws.TaskResultsCompleted == nil {
-		ws.TaskResultsCompleted = make(map[string]bool)
-	}
-	if _, ok := ws.TaskResultsCompleted[resultName]; !ok {
-		ws.MarkTaskResultIncomplete(resultName)
+func (ws *WorkflowStatus) MarkTaskResultIncomplete(name string) {
+	if ws.TaskResultsCompletionStatus == nil {
+		ws.TaskResultsCompletionStatus = make(map[string]bool)
 	}
+	ws.TaskResultsCompletionStatus[name] = false
 }
+
 func (ws *WorkflowStatus) MarkTaskResultComplete(name string) {
-	ws.TaskResultsCompleted[name] = true
-}
-func (ws *WorkflowStatus) MarkTaskResultIncomplete(name string) {
-	ws.TaskResultsCompleted[name] = false
-}
-func (ws *WorkflowStatus) GetTaskResultCompleted(name string) bool {
-	return ws.TaskResultsCompleted[name]
+	if ws.TaskResultsCompletionStatus == nil {
+		ws.TaskResultsCompletionStatus = make(map[string]bool)
+	}
+	ws.TaskResultsCompletionStatus[name] = true
 }
-func (ws *WorkflowStatus) GetTaskResultsCompleted() map[string]bool {
-	return ws.TaskResultsCompleted
+
+func (ws *WorkflowStatus) TaskResultsInProgress() bool {
+	for _, value := range ws.TaskResultsCompletionStatus {
+		if !value {
+			return true
+		}
+	}
+	return false
 }
 
 func (ws *WorkflowStatus) IsOffloadNodeStatus() bool {

test/e2e/argo_server_test.go

@@ -1037,6 +1037,29 @@ spec:
 	})
 }
 
+func (s *ArgoServerSuite) TestArtifactServerArchivedStoppedWorkflow() {
+	var uid types.UID
+	var nodeID string
+	s.Given().
+		Workflow(`@testdata/artifact-workflow-stopped.yaml`).
+		When().
+		SubmitWorkflow().
+		WaitForWorkflow(fixtures.ToBeArchived).
+		Then().
+		ExpectWorkflow(func(t *testing.T, metadata *metav1.ObjectMeta, status *wfv1.WorkflowStatus) {
+			uid = metadata.UID
+			nodeID = status.Nodes.FindByDisplayName("create-artifact").ID
+		})
+
+	s.Run("GetArtifactByNodeID", func() {
+		s.e().GET("/artifact-files/argo/archived-workflows/{uid}/{nodeID}/outputs/artifact-creator", uid, nodeID).
+			Expect().
+			Status(200).
+			Body().
+			Contains("testing")
+	})
+}
+
 // make sure we can download an artifact
 func (s *ArgoServerSuite) TestArtifactServer() {
 	var uid types.UID

test/e2e/daemon_pod_test.go

@@ -45,7 +45,7 @@ spec:
 `).
 		When().
 		SubmitWorkflow().
-		WaitForWorkflow(fixtures.ToBeSucceeded).
+		WaitForWorkflow(fixtures.ToBeCompleted).
 		Then().
 		ExpectWorkflow(func(t *testing.T, metadata *v1.ObjectMeta, status *v1alpha1.WorkflowStatus) {
 			assert.False(t, status.FinishedAt.IsZero())

test/e2e/functional_test.go

@@ -898,7 +898,7 @@ func (s *FunctionalSuite) TestDataTransformation() {
 		Workflow("@testdata/data-transformation.yaml").
 		When().
 		SubmitWorkflow().
-		WaitForWorkflow(90 * time.Second).
+		WaitForWorkflow(fixtures.ToBeSucceeded).
 		Then().
 		ExpectWorkflow(func(t *testing.T, metadata *metav1.ObjectMeta, status *wfv1.WorkflowStatus) {
 			assert.Equal(t, wfv1.WorkflowSucceeded, status.Phase)

test/e2e/testdata/artifact-workflow-stopped.yaml

@@ -0,0 +1,99 @@
+apiVersion: argoproj.io/v1alpha1
+kind: Workflow
+metadata:
+  generateName: wf-stopped-
+spec:
+  workflowMetadata:
+    labels:
+      workflows.argoproj.io/test: "true"
+      workflows.argoproj.io/workflow: "wf-stopped"
+  entrypoint: wf-stopped-main
+  serviceAccountName: argo
+  executor:
+    serviceAccountName: default
+  volumeClaimTemplates:
+    - metadata:
+        name: artifacts
+      spec:
+        accessModes: [ "ReadWriteOnce" ]
+        resources:
+          requests:
+            storage: 1Gi
+  templates:
+    - name: wf-stopped-main
+      dag:
+        tasks:
+          - name: create-artifact
+            template: artifact-creator
+          - name: delay-stop-workflow
+            template: delay-stop
+          - name: stop-workflow
+            template: workflow-stopper
+            dependencies: [delay-stop-workflow]
+    - name: delay-stop
+      container:
+        image: alpine:latest
+        volumeMounts:
+          - name: artifacts
+            mountPath: /mnt/vol
+        command: [sh, -c]
+        args:
+          - |
+            echo "Delaying workflow stop"
+            ls /mnt
+            x=0
+            while [ $x -le 60 ]
+            do
+              sleep 1
+              if [ -f "/mnt/vol/test.txt" ]; then
+                echo "Artifact found in shared volume"
+                break
+              fi
+              x=$(( $x + 1 ))
+            done
+    - name: workflow-stopper
+      container:
+        image: argoproj/argocli:latest
+        args: 
+          - stop
+          - -l
+          - workflows.argoproj.io/workflow=wf-stopped
+          - --namespace=argo
+          - --loglevel=debug
+    - name: artifact-creator
+      metadata:
+        labels:
+          template: "artifact-creator"
+      container:
+        image: alpine:latest
+        volumeMounts:
+          - name: artifacts
+            mountPath: /mnt/vol
+        command: [sh, -c]
+        args:
+          - |
+            echo 'testing' > /mnt/vol/test.txt
+            echo "Artifact saved to /mnt/vol/test.txt"
+            echo "Pretending to continue to do work."
+            ls /mnt
+            while :
+            do
+              sleep 1
+            done
+      outputs:
+        artifacts:
+          - name: artifact-creator
+            path: /mnt/vol/test.txt
+            s3:
+              key: artifact-creator
+              bucket: my-bucket-3
+              endpoint: minio:9000
+              insecure: true
+              accessKeySecret:
+                name: my-minio-cred
+                key: accesskey
+              secretKeySecret:
+                name: my-minio-cred
+                key: secretkey
+            archive:
+              none: {}