diff --git a/z_infra_provisioning/cloud_infra_center/ocp_upi/README.md b/z_infra_provisioning/cloud_infra_center/ocp_upi/README.md
index a41dd8e0..48a69010 100644
--- a/z_infra_provisioning/cloud_infra_center/ocp_upi/README.md
+++ b/z_infra_provisioning/cloud_infra_center/ocp_upi/README.md
@@ -310,9 +310,12 @@ Update your settings based on the samples. The following propeties are **require
 | `pullsecret`              | \<pull-secret\>                                 | Get from [cloud.redhat.com](https://console.redhat.com/openshift/install/ibmz/user-provisioned)                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
 | `sshkey`                  | \<ssh-key\>                                     | The SSH public key for the core user in RHEL CoreOS                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
 | `os_dns_domain`           | \<external DNS ip addr\> or \<bastion ip addr\> | If you want to use your external or existing DNS server set `os_dns_domain` to use it, others set bastion machine ip address                                                                                                                                                                                                                                                                                                                                                                                                                          |
-| `cluster_name`            | \<cluster-name\>                                | The name of the cluster, such as `openshift`.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         | 
+| `cluster_name`            | \<cluster-name\>                                | The name of the cluster, such as `openshift`.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
 | `base_domain`             | \<cluster-base-domain\>                         | The base domain of the cluster, the base domain is used to create routes to your OpenShift Container Platform cluster components, such as `example.com`      <br/>                                                                                                                                                                                                                                                                                                                                                                                    | 
- | `use_internal_bastion`    | true                                            | (Boolean) true or false, if true then nodes information under /var/named/\<clustername>\.zone and /etc/haproxy/haproxy.cfg will update and remove automatically                                                                                                                                                                                                                                                                                                                                                                                       | 
+| `bootstrap_name_prefix`            | \<bootsrap-node-name\>                                | The name and hostname of the bootstrap node, such as `ocp4zkboot`. If specific name is not required, leave the default value `` here.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
+| `master_name_prefix`            | \<master-node-name\>                                | The name and hostname of the master nodes, such as `ocp4zkm`. If specific name is not required, leave the default value `` here.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
+| `worker_name_prefix`            | \<worker-node-name\>                                | The name and hostname of the worker nodes, such as `ocp4zkw`. If specific name is not required, leave the default value `` here.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
+| `use_internal_bastion`    | true                                            | (Boolean) true or false, if true then nodes information under /var/named/\<clustername>\.zone and /etc/haproxy/haproxy.cfg will update and remove automatically                                                                                                                                                                                                                                                                                                                                                                                       | 
 
 If you need the Ansible playbook to help configure DNS server or HAProxy server on bastion server, you need to configure correct bastion properties: