diff --git a/.github/workflows/canary-integration-test.yml b/.github/workflows/canary-integration-test.yml
index 3f5d1b945980..c0ba6f631a2a 100644
--- a/.github/workflows/canary-integration-test.yml
+++ b/.github/workflows/canary-integration-test.yml
@@ -161,6 +161,11 @@ jobs:
           toolbox=$(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[*].metadata.name}')
           kubectl -n rook-ceph exec $toolbox -- python3 /etc/ceph/create-external-cluster-resources.py --rbd-data-pool-name replicapool --k8s-cluster-name rookstorage --restricted-auth-permission true
 
+      - name: test external script with restricted_auth_permission flag and with --cluster-name legacy flag
+        run: |
+          toolbox=$(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[*].metadata.name}')
+          kubectl -n rook-ceph exec $toolbox -- python3 /etc/ceph/create-external-cluster-resources.py --rbd-data-pool-name replicapool --cluster-name rookstorage --restricted-auth-permission true
+
       - name: test external script with restricted_auth_permission flag
         run: |
           toolbox=$(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[*].metadata.name}')
diff --git a/deploy/examples/create-external-cluster-resources.py b/deploy/examples/create-external-cluster-resources.py
index 940c80ad2520..e6a846662828 100644
--- a/deploy/examples/create-external-cluster-resources.py
+++ b/deploy/examples/create-external-cluster-resources.py
@@ -323,6 +323,11 @@ def gen_arg_parser(cls, args_to_parse=None):
             type=str,
             help="Provides a user name to check the cluster's health status, must be prefixed by 'client.'",
         )
+        common_group.add_argument(
+            "--cluster-name",
+            default="",
+            help="Kubernetes cluster name(legacy flag), Note: Either use this or --k8s-cluster-name",
+        )
         common_group.add_argument(
             "--k8s-cluster-name", default="", help="Kubernetes cluster name"
         )
@@ -1463,6 +1468,9 @@ def validate_rgw_multisite(self, rgw_multisite_config_name, rgw_multisite_config
     def _gen_output_map(self):
         if self.out_map:
             return
+        # support legacy flag with upgrades
+        if self._arg_parser.cluster_name:
+            self._arg_parser.k8s_cluster_name = self._arg_parser.cluster_name
         self._arg_parser.k8s_cluster_name = (
             self._arg_parser.k8s_cluster_name.lower()
         )  # always convert cluster name to lowercase characters