Pending Status for pods doesnt change

Hi All,

Im running Rancher with 3 CoreOS Hosts orchestrated with kubernetes.
All three Hosts are registered at Rancher proberly and a few kubernetes containers.

When I try to run the example below, I will receive the messages:
service “my-nginx” created
deployment “my-nginx” created

Example:
kubectl run my-nginx --image=nginx --replicas=2 --port=80 --expose --service-overrides='{ "spec": { "type": "LoadBalancer" } }'

kubectl get pods shows the following output:

NAME READY STATUS RESTARTS AGE
my-nginx-3800858182-6ww5y 0/1 Pending 0 5m
my-nginx-3800858182-l779c 0/1 Pending 0 5m

The pods are created but they are in pending state and this will never change.
How can I find out where the creation is hanging ?

Best regards, Thomas