Without this patch the timeout is 5m and the interval is 10m --
hard-coded with no mechanism to change, even though the config struct
already had a timeout option (which was completely unused)
We don't call klog.InitFlags yet, because that will cause a flag
redefinition error until we get everyone to stop using glog. That
will happen when we update to k8s 1.13.
- switching to using code rather than a template for the systemd unit creation as requested in review
- as part of the review, changing the name of the ca from tls-ca to tls-client-ca
- changing the api from DisableAddressCheck to EnableAddressCheck and defaulting to true if no set
- fixing up the test for node-authorizer and shifting the parsing of the certificates as suggested in reviews to a method