fix(deploy): verify exact EB release

.github/workflows/deploy.yml

@@ -119,6 +119,38 @@ jobs:
           wait-for-deployment: "true"
           wait-for-environment-recovery: "true"
 
+      - name: Verify exact application version is active
+        run: |
+          set -euo pipefail
+          expected="${{ github.sha }}-${{ github.run_id }}-${{ github.run_attempt }}"
+          status="Unknown"
+          current="Unknown"
+          health="Unknown"
+
+          for _ in $(seq 1 80); do
+            read -r status current health < <(
+              aws elasticbeanstalk describe-environments \
+                --environment-names shoc-backend-dev \
+                --region us-east-1 \
+                --query 'Environments[0].[Status,VersionLabel,Health]' \
+                --output text
+            )
+            echo "environment status: $status; version: $current; health: $health"
+
+            if [ "$status" = "Ready" ]; then
+              if [ "$current" = "$expected" ] && { [ "$health" = "Green" ] || [ "$health" = "Yellow" ]; }; then
+                echo "Expected application version is Ready and healthy."
+                exit 0
+              fi
+              echo "Environment became Ready without activating expected version $expected." >&2
+              exit 1
+            fi
+            sleep 15
+          done
+
+          echo "Expected application version did not become Ready within the deployment window." >&2
+          exit 1
+
       - name: Post-deploy smoke
         run: bash scripts/smoke-elastic-beanstalk.sh https://api.dev.seahaven.com
 

infra/cdk/README.md

@@ -117,17 +117,19 @@ The role grants only:
   Elastic Beanstalk emitted this read during the same attempt while validating
   the uploaded application bundle. It grants no bucket-wide or cross-prefix
   object access.
-- `s3:GetObjectAcl` on only the active Elastic Beanstalk platform version
-  prefix
-  `elasticbeanstalk-platform-assets-us-east-1/stalks/eb_dotnet8_amazon_linux_2023_1.0.2939.0_20260625064821/*`.
-  The live environment stack references its platform configuration, hooks,
-  user-data script, and sample bundle under that exact AWS-owned prefix. An
+- `s3:GetObjectAcl` on only the live environment's AWS-owned launch-control
+  object:
+  `elasticbeanstalk-us-east-1/environments/28bfd388-952c-4121-8897-42d39fb48b69/launch_control`.
+  The sanitized live environment template references that exact object. An
   audited account-bucket data-event trail captured source-bundle ACL reads but
-  did not capture the remaining denied ACL read, which rules out the previous
-  account-owned runtime-prefix inference. The grant therefore covers only ACL
-  metadata for the environment's currently deployed platform version; it
-  grants no platform object content read or write, no adjacent platform
-  version, and no account-owned runtime object access.
+  did not capture the remaining denied ACL read, and a controlled deployment
+  still failed after granting the separate platform-assets prefix. Together,
+  those observations identify this cross-account launch-control object as the
+  remaining ACL target. The grant exposes ACL metadata for one object only: it
+  grants no object content read or write, no adjacent environment object, no
+  platform asset, and no account-owned runtime object access. If the EB
+  environment is replaced, this identifier must be re-derived from the new
+  sanitized environment stack before updating the policy.
 
 It grants **no** IAM mutation or `PassRole`, **no** RDS / Secrets Manager
 access, no EC2 mutation, and **no** administrator policy. The only non-EB/S3

infra/cdk/deploy-dev-stack.ts

@@ -10,9 +10,8 @@ const ENVIRONMENT_ID = 'e-hehnrqjjrt';
 const ENVIRONMENT_STACK_NAME = `awseb-${ENVIRONMENT_ID}-stack`;
 const REPO = 'Sea-Haven-Industries/shoc-backend';
 const BUCKET_NAME = `elasticbeanstalk-${REGION}-${ACCOUNT_ID}`;
-const PLATFORM_ASSET_BUCKET_NAME = `elasticbeanstalk-platform-assets-${REGION}`;
-const PLATFORM_ASSET_PREFIX =
-  'stalks/eb_dotnet8_amazon_linux_2023_1.0.2939.0_20260625064821';
+const ENVIRONMENT_LAUNCH_CONTROL_KEY =
+  'environments/28bfd388-952c-4121-8897-42d39fb48b69/launch_control';
 
 export class DeployDevStack extends cdk.Stack {
   constructor(scope: Construct, id: string, props: cdk.StackProps = {}) {
@@ -155,7 +154,7 @@ export class DeployDevStack extends cdk.Stack {
         effect: iam.Effect.ALLOW,
         actions: ['s3:GetObjectAcl'],
         resources: [
-          `arn:aws:s3:::${PLATFORM_ASSET_BUCKET_NAME}/${PLATFORM_ASSET_PREFIX}/*`,
+          `arn:aws:s3:::elasticbeanstalk-${REGION}/${ENVIRONMENT_LAUNCH_CONTROL_KEY}`,
         ],
       }),
     );