I8C/installing-openshift-on-single-vmware-esxi-host ? reverse-engineered prompt

Build me a clear, usable setup for installing a complete Red Hat OpenShift 4.2 cluster on a single VMware ESXi host, the kind of lab environment described in the README.

I want the repo to include the documentation and the shell scripts needed to stand up the bastion VM and the supporting network services, like DNS, DHCP, load balancing, TFTP, and the router setup for the OpenShift subnet. Please make it easy to follow for someone doing this on a free ESXi host without vCenter, and keep the steps practical with the right VM names, IPs, and cluster layout for the bastion, bootstrap, masters, and compute nodes.

If anything is missing, fill in the gaps based on the existing files and make the instructions consistent across the README and scripts. Also make the bastion install script actually useful, with sensible defaults and clear places to edit hostnames and network values for another lab machine. If you need to check current Red Hat or VMware docs online to confirm details, go ahead and do that.