OpenShift Cheatsheet

Here some helpful OpenShift commands which work (at least) since version >= 4.11

Useful terms:

IPI Installer-provisioned infrastructure cluster
Cluster installed by install command; user must only provide some information (which platform, cluster name, network, storage, ...)

UPI User provisioned infrastructure cluster

• DNS and Loadbalancing must already be there
• Installation manually, download ova file (in case of vSphere)
• master created manually
• workers recommended
• *no* keepalived

Advantages:
IPI: installation more simple, using preconfigured features
UPI: no loadbalancer outage during update

Change from IPI -> UPI not possible