When listing resources such as POD running on a cluster, how to know which physical node are they on?
kubectl get {resource-type} command returns the following columns.
NAMESPACE NAME READY STATUS RESTARTS AGE
Could not find a way to list the actual nodes (could be more than one for a resource) side by side.
The -o flag seems to work
[root@kubernetes1 temp]# kubectl get pod --namespace=kube-system -o wide
NAME READY STATUS RESTARTS AGE IP NODE
k8s-master-127.0.0.1 4/4 Running 0 33m 127.0.0.1 127.0.0.1
k8s-proxy-127.0.0.1 1/1 Running 0 32m 127.0.0.1 127.0.0.1
kube-addon-manager-127.0.0.1 2/2 Running 0 33m 127.0.0.1 127.0.0.1
kube-dns-v18-z9igq 3/3 Running 0 33m 10.1.49.2 127.0.0.1You can use kubectl describe po to get the specific pod details.
kubectl describe po nginx-abcde
The output would look as below
Name: nginx-abcde Namespace: default ...
You could use a json parser like "jq" to parse kubectl get po -o json output to get specific fields as node ,hostIP etc.
Refer to http://kubernetes.io/docs/user-guide/kubectl-cheatsheet/ for examples.