The objective of this document is to provide instructions (automated ish) to install OCP4 on baremetal:
- without PXE (pretty common scenario in big companies)
- avoid installing stuff and use containers instead (instead yum/dnf install httpd, haproxy,... use containers)
- use rootless containers if possible
- use Fedora29/RHEL8 stuff (nmcli, firewalld, etc.)
DISCLAIMER: This is unofficial and unsupported procedure. Use the official OpenShift documentation for the supported scenarios.
OCP4.1 GA installed
In order to have a frictionless environment, a helper node will be used to achieve the OpenShift prerrequisites, including DNS entries, a load balancer and a httpd server to host some files required for the installation. If your enviorment has already a DNS server, load balancer and/or httpd server, you can use those instead.
| Usage | Hostname | IP | NOTES |
|---|---|---|---|
| Helper | ocp4-helper.minwi.lan | 192.168.32.2 | DNS, httpd & load balancer |
| Bootstrap | ocp4-bootstrap.minwi.lan | 192.168.32.99 | To be removed from the cluster once installed |
| Master-0 | ocp4-master-0.minwi.lan | 192.168.32.100 | |
| Master-1 | ocp4-master-1.minwi.lan | 192.168.32.101 | |
| Master-2 | ocp4-master-2.minwi.lan | 192.168.32.102 | |
| Worker-0 | ocp4-worker-0.minwi.lan | 192.168.32.200 |
NOTE: Those baremetal servers are Dell based, so racadm will be used in order to manage the iDRAC to map a virtual cd, power off/on, etc.