Currently when LoopbackHostPort() is called with 0.0.0.0 and [::] it returns the first loopback
address returned from net.InterfaceAddrs() which is typically 127.0.0.1 (golang does not
specify an order that interfaces are returned). It would be more appropriate if when calling
LoopbackHostPort() with [::] that an IPv6 loopback address is returned, this prevents some cert.
generation failures.
Kubernetes-commit: 14a03dd646e992c06a3fdfb9bd60f58ef542066e
The golang stdlib resolve localhost first via the external DNS server,
not via /etc/hosts. If your DNS resolve localhost.<search-domain>, the
API server won't start.
Kubernetes-commit: 63cd572c74a40933d8e6928e084601810b724a81
Jacob Tanenbaum
hzxuzhonghu
Aaron Crickenberger
Dr. Stefan Schimanski