I have a pod with the following config:

apiVersion: v1
kind: Pod
metadata:
  labels:
    name: demo
  name: demo
spec:
  containers:
    - name: demo
      image: ubuntu:14.04
      command:
        - sleep
        - "3600"

When I try to stop it, the SIGTERM is ignored by the sleep command, and it takes 30 seconds (the full default grace period) to stop. I can also get on the pod and send the signal to the process (pid 1) manually, and it does not kill the pod. How can I get sleep to die when a signal is sent to it?