title: kubernetes pod with sleep command hangs
body: <p>I have a pod with the following config:</p>
  
  <pre><code>apiVersion: v1
  kind: Pod
  metadata:
    labels:
      name: demo
    name: demo
  spec:
    containers:
      - name: demo
        image: ubuntu:14.04
        command:
          - sleep
          - "3600"
  </code></pre>
  
  <p>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?</p>