This lets us safely make changes to otherwise immutable fields, in
particular for adding security groups to NLBs created without them.
We detect the older versions, and create deletion tasks to remove
them. These tasks can be deferred, and we expect them to be
deferred to a "prune" phase that runs after cluster apply.
Co-authored-by: Ciprian Hacman <ciprian@hakman.dev>
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.