text: When configuring multiple masters, the cluster installation process supports the native HA 
  method. This method uses the native HA master capabilities that are built into OpenShift 
  Container Platform and can be combined with any Load Balancing solution. 
  
  If a host is defined in the [lb] section of the inventory file, Ansible installs and configures 
  HAProxy automatically as the load balancing solution. If no host is defined, it is assumed that 
  you pre-configured an external load balancing solution of your choice to balance the master 
  API (port 8443) on all master hosts. 
  
  **Note:**The HAProxy Load Balancer is intended to demonstrate the API server’s HA mode 
  and is not recommended for production environments. If you are deploying to a cloud 
  provider, Red Hat recommends deploying a cloud-native TCP-based Load Balancer or 
  take other steps to provide a highly available load balancer. 
  
  **DNS**
  DNS service is an important component in the Red Hat OpenShift Container Platform 
  environment. Regardless of the provider of DNS, an organization is required to have certain 
  records in place to serve the various Red Hat OpenShift Container Platform components. 
  
  Considering the Load Balancer values for the Red Hat OpenShift Container Platform master 
  service and infrastructure nodes running router Pods are known beforehand, entries must be 
  configured into the DNS before starting the deployment procedure. 