OKD - useful debugging commands

I've been running openshift (okd) in my homelab for about a month now for all my container needs and so far, I really like what I see. Along the way, I had to debug some issues so here are a few commands that should help you getting started in finding the root cause of a problem.

Gathering information:

 $ oc get nodes -o wide  
 $ oc get pods -A -o wide  
 $ oc adm top node  
 $ oc -n ${namespace} get events [-o wide]  
 $ oc -n ${namespace} describe ${resourceype}/${resourcename}  

Check why pods are failing:

 $ oc -n ${namespace} logs [-f | --tail=${linecount}) deployments/${deployment}  
 $ oc -n ${namespace} logs [-f | --tail=${linecount}] pods/${pod}  
 $ oc -n ${namespace} get pods/${podname} -o jsonpath='{.status.containerStatuses}' | jq
 $ oc -n ${namespace} get pods/${podname} -o yaml | oc adm policy scc-subject-review -f -  

Checking what pods are behind a given service:

 $ oc -n ${namespace} get endpoints ${service}  

Some useful commands for debugging pods / nodes:

 $ oc -n ${namespace} debug pods/${pod}  
 $ oc -n ${namespace} debug node/${nodename}  

Getting info about a certain container image using skopeo (+example):

 $ skopeo inspect --config docker://${registry}/${repository}:${tag} | jq | less  
 $ skopeo inspect --config docker://docker.io/library/debian:11 | jq -r .config.Env  

I will probalby add more commands over time

Feel free to comment and / or suggest a topic.