diff --git a/.github/workflows/canary-integration-test.yml b/.github/workflows/canary-integration-test.yml
index 6fee634c8..ceb2a1f57 100644
--- a/.github/workflows/canary-integration-test.yml
+++ b/.github/workflows/canary-integration-test.yml
@@ -83,6 +83,7 @@ jobs:
 
     - name: test external script create-external-cluster-resources.py
       run: |
+        kubectl -n rook-ceph exec $(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[0].metadata.name}') -- /bin/bash -c "echo \"$(kubectl get pods -o wide -n rook-ceph -l app=rook-ceph-mgr --no-headers=true|head -n1|awk '{print $6"\t"$1}')\" >>/etc/hosts"
         kubectl -n rook-ceph exec $(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[0].metadata.name}') -- mkdir -p /etc/ceph/test-data
         kubectl -n rook-ceph cp cluster/examples/kubernetes/ceph/test-data/ceph-status-out $(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[0].metadata.name}'):/etc/ceph/test-data/
         kubectl -n rook-ceph cp cluster/examples/kubernetes/ceph/create-external-cluster-resources.py $(kubectl get pod -l app=rook-ceph-tools -n rook-ceph -o jsonpath='{.items[0].metadata.name}'):/etc/ceph
diff --git a/cluster/examples/kubernetes/ceph/create-external-cluster-resources.py b/cluster/examples/kubernetes/ceph/create-external-cluster-resources.py
index b84aa37cd..f1b17e8c6 100644
--- a/cluster/examples/kubernetes/ceph/create-external-cluster-resources.py
+++ b/cluster/examples/kubernetes/ceph/create-external-cluster-resources.py
@@ -125,7 +125,7 @@ class DummyRados(object):
         host_ip = self.dummy_host_ip_map.get(host_name, "")
         if not host_ip:
             host_ip = "172.9.{}.{}".format(
-                random.randint(0, 255), random.randint(0, 255))
+                random.randint(0, 254), random.randint(0, 254))
             self.dummy_host_ip_map[host_name] = host_ip
         del random
         return host_ip
@@ -797,6 +797,7 @@ if __name__ == '__main__':
         rjObj.main()
     except ExecutionFailureException as err:
         print("Execution Failed: {}".format(err))
+        raise err
     except KeyError as kErr:
         print("KeyError: %s", kErr)
     except OSError as osErr: