adds a 1-4ms delay for udp port 53 packets going through DNAT, such that the kernel race condition happens less likely. Background see https://blog.quentin-machu.fr/2018/06/24/5-15s-dns-lookups-on-kubernetes/ https://github.com/kubernetes/kubernetes/issues/62628 https://github.com/coreos/flannel/pull/1001\#issuecomment-403802099
adds a 1-4ms delay for udp port 53 packets going through DNAT, such that the kernel race condition happens less likely.
Background see https://blog.quentin-machu.fr/2018/06/24/5-15s-dns-lookups-on-kubernetes/
https://github.com/kubernetes/kubernetes/issues/62628
https://github.com/coreos/flannel/pull/1001\#issuecomment-403802099

zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws,zalando-incubator/kubernetes-on-aws