https://docs.aws.amazon.com/eks/latest/userguide/what-is-eks.html

Resource

list all objects

kubectl get "$(kubectl api-resources --verbs=list -o name | tr "\n" "," | sed -e 's/,$//')" -o wide --all-namespaces

describe a object

kubectl describe ns,no,ing,svc,endpoints,ds,deploy,rs,sts,po,sa,pdb,cj,jobs,sc,pv,pvc --all-namespaces 2>/dev/null

list events sorted by timestamp

date && kubectl get events --sort-by=.metadata.creationTimestamp --all-namespaces

When a node doesn't join a cluster

kubectl get svc
kubectl get nodes
kubectl describe configmap -n kube-system aws-auth

When a pod doesn't launch

kubectl get pods
kubectl get pod <pod name>
kubectl describe pods --all-namespaces=true
kubectl logs <pod name>