use xenial release for mon01 node
diff --git a/tcp_tests/templates/underlay/mk22-lab-advanced.yaml b/tcp_tests/templates/underlay/mk22-lab-advanced.yaml
index 350aac0..61a5ac3 100644
--- a/tcp_tests/templates/underlay/mk22-lab-advanced.yaml
+++ b/tcp_tests/templates/underlay/mk22-lab-advanced.yaml
@@ -140,7 +140,7 @@
                   device: cdrom
                   bus: ide
                   cloudinit_meta_data: !include mk22-lab-advanced--meta-data.yaml
-                  cloudinit_user_data: !include mk22-lab-advanced--user-data.yaml
+                  cloudinit_user_data: !include mk22-lab-advanced--user-data1404.yaml
 
               interfaces: &interfaces
                 - label: eth0
@@ -178,7 +178,7 @@
                   device: cdrom
                   bus: ide
                   cloudinit_meta_data: !include mk22-lab-advanced--meta-data.yaml
-                  cloudinit_user_data: !include mk22-lab-advanced--user-data.yaml
+                  cloudinit_user_data: !include mk22-lab-advanced--user-data1404.yaml
 
               interfaces: *interfaces
               network_config: *network_config
@@ -204,7 +204,7 @@
                   device: cdrom
                   bus: ide
                   cloudinit_meta_data: !include mk22-lab-advanced--meta-data.yaml
-                  cloudinit_user_data: !include mk22-lab-advanced--user-data.yaml
+                  cloudinit_user_data: !include mk22-lab-advanced--user-data1404.yaml
 
               interfaces: *interfaces
               network_config: *network_config
@@ -230,7 +230,7 @@
                   device: cdrom
                   bus: ide
                   cloudinit_meta_data: !include mk22-lab-advanced--meta-data.yaml
-                  cloudinit_user_data: !include mk22-lab-advanced--user-data.yaml
+                  cloudinit_user_data: !include mk22-lab-advanced--user-data1404.yaml
 
               interfaces: *interfaces
               network_config: *network_config
@@ -256,7 +256,7 @@
                   device: cdrom
                   bus: ide
                   cloudinit_meta_data: !include mk22-lab-advanced--meta-data.yaml
-                  cloudinit_user_data: !include mk22-lab-advanced--user-data.yaml
+                  cloudinit_user_data: !include mk22-lab-advanced--user-data1404.yaml
 
               interfaces: *interfaces
               network_config: *network_config