Capture built image id from packer

.gitlab-ci.yml

@@ -88,7 +88,11 @@ build_image:
       PKR_VAR_build_instance_name="ood-${CRI_XCBC_HEAD}"
       PKR_VAR_image_date_suffix=false
       PKR_VAR_image_name="ood-${BUILD_DATE}"
-      $CI_PROJECT_DIR/bin/packer build openstack-ood
+      $CI_PROJECT_DIR/bin/packer build -machine-readable openstack-ood | tee ood_build.log
+    - echo BUILT_OOD_IMAGE_ID=$(grep 'Image:' ood_build.log | awk '{print $4}') | tee image.env
+  artifacts:
+    reports:
+      dotenv: image.env
 
 deploy_knightly:
   stage: deploy