Examine OpenShift cluster status

One quick way to get a cluster overview status is to use:

oc status

To get the information about the nodes use:

oc get nodes
oc describe node crc

If you want to inspect the health of your cluster, control-plane components such as scheduler, etcd and controller manager use:

oc get componentstatuses

The oc adm - allows administrative tasks to be performed on the cluster. For example - to monitor cluster resource utilization:

oc adm top nodes
oc adm top nodes --sort-by=cpu 
oc adm top nodes –sort-by=memory 
oc adm top pods
oc adm top pods –namespace=openshift-apiserver
oc adm top pods -l=app=app-name
oc adm top pods -A
oc adm top pods -A --sort-by=cpu 
oc adm top pods -A --sort-by=memory

You can also monitor via GUI by navigating to Administrator -> Home -> Overview