title: Kubernetes rolling-update scheduled job
body: <p>We now have <a href="http://kubernetes.io/docs/user-guide/scheduled-jobs/" rel="nofollow">scheduled jobs</a> in <a href="http://blog.kubernetes.io/2016/09/kubernetes-1.4-making-it-easy-to-run-on-kuberentes-anywhere.html" rel="nofollow">Kubernetes 1.4</a>- is it possible to do a <a href="http://kubernetes.io/docs/user-guide/rolling-updates/" rel="nofollow">rolling container update</a> (new image) against the cluster using this? The basic idea is I want a simple way to automatically roll out updates every set interval.</p>
  
  <p>The 'traditional' way to do updates is for the CI to hit a webhook on the Kube master, but I want to avoid exposing services to the public and would rather just check for updates periodically.</p>