Add enhanced error reporting using DescribeEventsCommand with change set ID and failed events filter

Author: kddejong

dist/index.js

@@ -50144,8 +50144,8 @@ const core = __importStar(__nccwpck_require__(7484));
 const client_cloudformation_1 = __nccwpck_require__(3805);
 function waitUntilStackOperationComplete(params, input) {
     return __awaiter(this, void 0, void 0, function* () {
-        var _a;
-        const { client, maxWaitTime, minDelay } = params;
+        var _a, _b;
+        const { client, maxWaitTime, minDelay, changeSetId } = params;
         const startTime = Date.now();
         while (Date.now() - startTime < maxWaitTime * 1000) {
             try {
@@ -50173,7 +50173,25 @@ function waitUntilStackOperationComplete(params, input) {
                     status === 'UPDATE_ROLLBACK_FAILED' ||
                     status === 'IMPORT_ROLLBACK_COMPLETE' ||
                     status === 'IMPORT_ROLLBACK_FAILED') {
-                    throw new Error(`Stack operation failed with status: ${status}`);
+                    // Get failed events using change set ID if available
+                    let failureReason = `Stack operation failed with status: ${status}`;
+                    if (changeSetId) {
+                        try {
+                            const events = yield client.send(new client_cloudformation_1.DescribeEventsCommand({
+                                ChangeSetName: changeSetId,
+                                Filters: { FailedEvents: true }
+                            }));
+                            const failedEvents = (_b = events.OperationEvents) === null || _b === void 0 ? void 0 : _b.filter(event => event.ResourceStatusReason);
+                            if (failedEvents && failedEvents.length > 0) {
+                                const reasons = failedEvents.map(event => `${event.LogicalResourceId}: ${event.ResourceStatusReason}`).join('; ');
+                                failureReason += `. Failed resources: ${reasons}`;
+                            }
+                        }
+                        catch (_c) {
+                            // Ignore errors getting events
+                        }
+                    }
+                    throw new Error(failureReason);
                 }
                 // In-progress states - keep waiting
                 core.info(`Stack still in progress, waiting ${minDelay} seconds...`);
@@ -50313,7 +50331,7 @@ function updateStack(cfn, stack, params, failOnEmptyChangeSet, noExecuteChangeSe
             StackName: params.StackName
         }));
         core.debug('Updating CloudFormation stack');
-        yield waitUntilStackOperationComplete({ client: cfn, maxWaitTime: 43200, minDelay: 10 }, {
+        yield waitUntilStackOperationComplete({ client: cfn, maxWaitTime: 43200, minDelay: 10, changeSetId: params.ChangeSetName }, {
             StackName: params.StackName
         });
         return { stackId: stack.StackId };

src/deploy.ts

@@ -8,6 +8,7 @@ import {
   CreateChangeSetCommand,
   ExecuteChangeSetCommand,
   DescribeStacksCommand,
+  DescribeEventsCommand,
   CloudFormationServiceException
 } from '@aws-sdk/client-cloudformation'
 import { CreateChangeSetInput, CreateStackInputWithName } from './main'
@@ -25,10 +26,11 @@ async function waitUntilStackOperationComplete(
     client: CloudFormationClient
     maxWaitTime: number
     minDelay: number
+    changeSetId?: string
   },
   input: { StackName: string }
 ): Promise<void> {
-  const { client, maxWaitTime, minDelay } = params
+  const { client, maxWaitTime, minDelay, changeSetId } = params
   const startTime = Date.now()
 
   while (Date.now() - startTime < maxWaitTime * 1000) {
@@ -65,7 +67,26 @@ async function waitUntilStackOperationComplete(
         status === 'IMPORT_ROLLBACK_COMPLETE' ||
         status === 'IMPORT_ROLLBACK_FAILED'
       ) {
-        throw new Error(`Stack operation failed with status: ${status}`)
+        // Get failed events using change set ID if available
+        let failureReason = `Stack operation failed with status: ${status}`
+        if (changeSetId) {
+          try {
+            const events = await client.send(new DescribeEventsCommand({ 
+              ChangeSetName: changeSetId,
+              Filters: { FailedEvents: true }
+            }))
+            const failedEvents = events.OperationEvents?.filter(event => event.ResourceStatusReason)
+            if (failedEvents && failedEvents.length > 0) {
+              const reasons = failedEvents.map(event => 
+                `${event.LogicalResourceId}: ${event.ResourceStatusReason}`
+              ).join('; ')
+              failureReason += `. Failed resources: ${reasons}`
+            }
+          } catch {
+            // Ignore errors getting events
+          }
+        }
+        throw new Error(failureReason)
       }
 
       // In-progress states - keep waiting
@@ -283,7 +304,7 @@ export async function updateStack(
 
   core.debug('Updating CloudFormation stack')
   await waitUntilStackOperationComplete(
-    { client: cfn, maxWaitTime: 43200, minDelay: 10 },
+    { client: cfn, maxWaitTime: 43200, minDelay: 10, changeSetId: params.ChangeSetName },
     {
       StackName: params.StackName!
     }