Use DaemonSet MaxSurge for stability and availability

[mflendrich]

Issue originally authored by tnozicka as #25

We should use maxSurge in our deploy files to make sure we

a) spin up a new Pod on the node while the old one keeps working
This is important to reduce downtime as say pull time can take long, hit an error, backoff or it may not start

b) to make sure the new pod start far enough (and isn't broken) before we tear down the old Pod