fix: discard update action on notify only

src/main/java/com/aws/greengrass/deployment/DeploymentConfigMerger.java

@@ -126,7 +126,7 @@ private void updateActionForDeployment(Map<String, Object> newConfig, Deployment
         // if the update is cancelled, don't perform merge
         if (totallyCompleteFuture.isCancelled()) {
             logger.atInfo(MERGE_CONFIG_EVENT_KEY).kv("deployment", deploymentId)
-                    .log("Future was cancelled so no need to go through with the update");
+                    .log("Deployment was cancelled, so no need to perform config merge update");
             return;
         }
         Map<String, Object> serviceConfig;

src/main/java/com/aws/greengrass/deployment/DeploymentService.java

@@ -50,6 +50,7 @@
 import lombok.Setter;
 import org.apache.commons.io.FileUtils;
 import software.amazon.awssdk.iot.iotjobs.model.JobStatus;
+import software.amazon.awssdk.services.greengrassv2.model.DeploymentComponentUpdatePolicyAction;
 
 import java.io.IOException;
 import java.nio.file.Files;
@@ -504,10 +505,12 @@ private void cancelCurrentDeployment() {
                     .isCancellable()) {
                 logger.atInfo().log("Deployment already finished processing or cannot be cancelled");
             } else {
-                boolean canCancelDeployment = context.get(UpdateSystemPolicyService.class).discardPendingUpdateAction(
-                        ((DefaultDeploymentTask) currentDeploymentTaskMetadata.getDeploymentTask()).getDeployment()
-                                .getGreengrassDeploymentId());
-                if (canCancelDeployment) {
+                DeploymentComponentUpdatePolicyAction currentDeploymentUpdatePolicyAction =
+                        currentDeploymentTaskMetadata.getDeploymentDocument().getComponentUpdatePolicy()
+                                .getComponentUpdatePolicyAction();
+                if (DeploymentComponentUpdatePolicyAction.NOTIFY_COMPONENTS.equals(currentDeploymentUpdatePolicyAction)
+                        && context.get(UpdateSystemPolicyService.class)
+                        .discardPendingUpdateAction(currentDeploymentTaskMetadata.getGreengrassDeploymentId())) {
                     currentDeploymentTaskMetadata.getDeploymentResultFuture().cancel(true);
                     DeploymentType deploymentType = currentDeploymentTaskMetadata.getDeploymentType();
                     if (DeploymentType.SHADOW.equals(deploymentType) || DeploymentType.LOCAL.equals(deploymentType)) {
@@ -522,13 +525,11 @@ private void cancelCurrentDeployment() {
                             .kv(GG_DEPLOYMENT_ID_LOG_KEY_NAME,
                                     currentDeploymentTaskMetadata.getGreengrassDeploymentId())
                             .log("Deployment was cancelled");
-                } else {
-                    logger.atInfo().kv(DEPLOYMENT_ID_LOG_KEY_NAME, currentDeploymentTaskMetadata.getDeploymentId())
-                            .kv(GG_DEPLOYMENT_ID_LOG_KEY_NAME,
-                                    currentDeploymentTaskMetadata.getGreengrassDeploymentId())
-                            .log("Deployment is in a stage where it cannot be cancelled,"
-                                    + " need to wait for it to finish");
+                    return;
                 }
+                logger.atInfo().kv(DEPLOYMENT_ID_LOG_KEY_NAME, currentDeploymentTaskMetadata.getDeploymentId())
+                        .kv(GG_DEPLOYMENT_ID_LOG_KEY_NAME, currentDeploymentTaskMetadata.getGreengrassDeploymentId())
+                        .log("Deployment is in a stage where it cannot be cancelled, need to wait for it to finish");
             }
         }
     }

src/main/java/com/aws/greengrass/lifecyclemanager/UpdateSystemPolicyService.java

@@ -52,7 +52,6 @@ public class UpdateSystemPolicyService extends GreengrassService {
     // represents the value in seconds the kernel will wait for components to respond to
     // an precomponent update event
     private final Map<String, UpdateAction> pendingActions = Collections.synchronizedMap(new LinkedHashMap<>());
-    private final AtomicReference<String> actionInProgress = new AtomicReference<>();
 
     @Inject
     private LifecycleIPCEventStreamAgent lifecycleIPCAgent;
@@ -96,20 +95,21 @@ public Set<String> getPendingActions() {
     @SuppressWarnings("PMD.AvoidCatchingThrowable")
     protected void runUpdateActions(String deploymentId) {
         try (LockScope ls = LockScope.lock(lock)) {
-            for (Map.Entry<String, UpdateAction> todo : pendingActions.entrySet()) {
-                try {
-                    actionInProgress.set(todo.getKey());
-                    todo.getValue().getAction().run();
-                    logger.atDebug().setEventType("service-update-action").addKeyValue("action", todo.getKey()).log();
-                } catch (Throwable t) {
-                    logger.atError().setEventType("service-update-action-error").addKeyValue("action", todo.getKey())
-                            .setCause(t).log();
-                }
+            final UpdateAction pendingUpdateAction = pendingActions.remove(deploymentId);
+            if (pendingUpdateAction == null) {
+                // Update action is never added or discarded by this time. So, do nothing.
+                return;
+            }
+            try {
+                pendingUpdateAction.getAction().run();
+                logger.atDebug().setEventType("service-update-action").addKeyValue("action", deploymentId).log();
+            } catch (Throwable t) {
+                logger.atError().setEventType("service-update-action-error").addKeyValue("action", deploymentId)
+                        .setCause(t).log();
             }
-            pendingActions.clear();
             lifecycleIPCAgent.sendPostComponentUpdateEvent(
                     new PostComponentUpdateEvent().withDeploymentId(deploymentId));
-            actionInProgress.set(null);
+
         }
     }
 
@@ -121,16 +121,13 @@ protected void runUpdateActions(String deploymentId) {
      *         false if update actions were already in progress
      */
     public boolean discardPendingUpdateAction(String tag) {
-        if (tag.equals(actionInProgress.get())) {
+        final UpdateAction pendingUpdateAction = pendingActions.remove(tag);
+        if (pendingUpdateAction == null) {
+            // Update action is never added or already in progress.
             return false;
         }
-        final UpdateAction pendingUpdateAction = pendingActions.get(tag);
-        if (pendingUpdateAction != null) {
-            // Signal components that they can resume their work since the update is not going to happen
-            lifecycleIPCAgent.sendPostComponentUpdateEvent(
-                    new PostComponentUpdateEvent().withDeploymentId(pendingUpdateAction.getDeploymentId()));
-            pendingActions.remove(tag);
-        }
+        // Signal components that they can resume their work since the update is not going to happen
+        lifecycleIPCAgent.sendPostComponentUpdateEvent(new PostComponentUpdateEvent().withDeploymentId(tag));
         return true;
     }
 
@@ -150,18 +147,17 @@ protected void startup() throws InterruptedException {
             logger.atDebug().setEventType("service-update-pending").addKeyValue("numOfUpdates", pendingActions.size())
                     .log();
 
-            boolean ggcRestarting = false;
-            for (UpdateAction action : pendingActions.values()) {
-                if (action.isGgcRestart()) {
-                    ggcRestarting = true;
-                    break;
-                }
+            final AtomicReference<UpdateAction> action = new AtomicReference<>();
+            pendingActions.values().stream().findFirst().ifPresent(action::set);
+            if (action.get() == null) {
+                // no pending actions
+                continue;
             }
+            String deploymentId = action.get().getDeploymentId();
+            PreComponentUpdateEvent preComponentUpdateEvent = new PreComponentUpdateEvent()
+                    .withDeploymentId(deploymentId)
+                    .withIsGgcRestarting(action.get().isGgcRestart());
 
-            PreComponentUpdateEvent preComponentUpdateEvent = new PreComponentUpdateEvent();
-            preComponentUpdateEvent.setIsGgcRestarting(ggcRestarting);
-            String deploymentId = pendingActions.values().stream().map(UpdateAction::getDeploymentId).findFirst().get();
-            preComponentUpdateEvent.setDeploymentId(deploymentId);
             List<Future<DeferComponentUpdateRequest>> deferRequestFutures =
                     lifecycleIPCAgent.sendPreComponentUpdateEvent(preComponentUpdateEvent);
 
@@ -179,8 +175,7 @@ protected void startup() throws InterruptedException {
                         logger.atInfo().setEventType("service-update-finish").log();
                     }).get();
                 } catch (ExecutionException e) {
-                    logger.atError().setEventType("service-update-error")
-                            .log("Run update actions errored", e);
+                    logger.atError().setEventType("service-update-error").log("Run update actions errored", e);
                 }
             }
         }

src/test/java/com/aws/greengrass/deployment/DeploymentServiceTest.java

@@ -616,6 +616,34 @@ void GIVEN_deployment_job_cancelled_WHEN_waiting_for_safe_time_THEN_then_cancel_
 
         String deploymentDocument = getTestDeploymentDocument();
 
+        deploymentQueue.offer(new Deployment(deploymentDocument,
+                Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1));
+
+        when(mockExecutorService.submit(any(DefaultDeploymentTask.class))).thenReturn(mockFuture);
+        startDeploymentServiceInAnotherThread();
+
+        // Simulate a cancellation deployment
+        Thread.sleep(TEST_DEPLOYMENT_POLLING_FREQUENCY.toMillis()); // wait for previous deployment to be polled
+        deploymentQueue.offer(new Deployment(Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1, true));
+
+        // Expecting three invocations, once for each retry attempt
+        verify(mockExecutorService, WAIT_FOUR_SECONDS).submit(any(DefaultDeploymentTask.class));
+        verify(deploymentStatusKeeper, WAIT_FOUR_SECONDS).persistAndPublishDeploymentStatus(eq(TEST_JOB_ID_1),
+                eq(TEST_UUID), eq(TEST_CONFIGURATION_ARN), eq(Deployment.DeploymentType.IOT_JOBS),
+                eq(JobStatus.IN_PROGRESS.toString()), any(), eq(EXPECTED_ROOT_PACKAGE_LIST));
+        verify(updateSystemPolicyService, times(0)).discardPendingUpdateAction(TEST_DEPLOYMENT_ID);
+        verify(mockFuture, times(0)).cancel(true);
+    }
+
+    @Test
+    void GIVEN_deployment_job_with_notify_cancelled_WHEN_waiting_for_safe_time_THEN_then_cancel_deployment()
+            throws Exception {
+        Topics groupToLastDeploymentTopics = Topics.of(context, GROUP_TO_LAST_DEPLOYMENT_TOPICS, null);
+        when(config.lookupTopics(eq(GROUP_TO_LAST_DEPLOYMENT_TOPICS), anyString())).thenReturn(
+                groupToLastDeploymentTopics);
+
+        String deploymentDocument = getTestDeploymentDocumentNotify();
+
         deploymentQueue.offer(new Deployment(deploymentDocument,
                 Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1));
 
@@ -645,6 +673,36 @@ void GIVEN_deployment_job_cancelled_WHEN_already_executing_update_THEN_then_fini
 
         String deploymentDocument = getTestDeploymentDocument();
 
+        deploymentQueue.offer(new Deployment(deploymentDocument,
+                Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1));
+
+        when(mockExecutorService.submit(any(DefaultDeploymentTask.class))).thenReturn(mockFuture);
+        startDeploymentServiceInAnotherThread();
+
+        // Simulate a cancellation deployment
+        Thread.sleep(TEST_DEPLOYMENT_POLLING_FREQUENCY.toMillis()); // wait for previous deployment to be polled
+        deploymentQueue.offer(new Deployment(Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1, true));
+
+        // Expecting three invocations, once for each retry attempt
+        verify(mockExecutorService, WAIT_FOUR_SECONDS).submit(any(DefaultDeploymentTask.class));
+        // ComponentUpdatePolicy is set to SKIP_NOTIFY_COMPONENTS
+        verify(updateSystemPolicyService, times(0)).discardPendingUpdateAction(TEST_DEPLOYMENT_ID);
+        verify(mockFuture, times(0)).cancel(true);
+        verify(deploymentStatusKeeper, WAIT_FOUR_SECONDS).persistAndPublishDeploymentStatus(eq(TEST_JOB_ID_1),
+                eq(TEST_UUID), eq(TEST_CONFIGURATION_ARN), eq(Deployment.DeploymentType.IOT_JOBS),
+                eq(JobStatus.IN_PROGRESS.toString()), any(), eq(EXPECTED_ROOT_PACKAGE_LIST));
+    }
+
+
+    @Test
+    void GIVEN_deployment_job_with_notify_cancelled_WHEN_already_executing_update_THEN_then_finish_deployment()
+            throws Exception {
+        Topics groupToLastDeploymentTopics = Topics.of(context, GROUP_TO_LAST_DEPLOYMENT_TOPICS, null);
+        when(config.lookupTopics(eq(GROUP_TO_LAST_DEPLOYMENT_TOPICS), anyString())).thenReturn(
+                groupToLastDeploymentTopics);
+
+        String deploymentDocument = getTestDeploymentDocumentNotify();
+
         deploymentQueue.offer(new Deployment(deploymentDocument,
                 Deployment.DeploymentType.IOT_JOBS, TEST_JOB_ID_1));
 
@@ -713,6 +771,13 @@ String getTestDeploymentDocument() {
                 .collect(Collectors.joining("\n")).replace(CONFIG_ARN_PLACEHOLDER, TEST_CONFIGURATION_ARN);
     }
 
+    String getTestDeploymentDocumentNotify() {
+        return new BufferedReader(new InputStreamReader(
+                getClass().getResourceAsStream("TestDeploymentDocNotify.json"), StandardCharsets.UTF_8))
+                .lines()
+                .collect(Collectors.joining("\n")).replace(CONFIG_ARN_PLACEHOLDER, TEST_CONFIGURATION_ARN);
+    }
+
     private void assertListEquals(List<String> first, List<String> second) {
         assertEquals(first.size(), second.size());
         for (int i = 0; i < first.size(); i++) {

src/test/resources/com/aws/greengrass/deployment/TestDeploymentDocNotify.json

@@ -0,0 +1,17 @@
+{
+  "deploymentId": "testDeploymentId",
+  "configurationArn": "arn:aws:greengrass:us-east-1:12345678910:configuration:thinggroup/group1:1",
+  "components": {
+    "component1": {
+      "rootComponent": true,
+      "version": "1.0.0"
+    }
+  },
+  "componentUpdatePolicy": {
+    "timeout": 60,
+    "action": "NOTIFY_COMPONENTS"
+  },
+  "configurationValidationPolicy": {
+    "timeout": 20
+  }
+}