firstly, split into two tests: TestLoopbackHostPortIPv4 and TestLoopbackHostPortIPv6.
then improve error handling, going to fail with explicit error message when run host
that does not support ipv6 or ipv4
Kubernetes-commit: 6b73b5031c463437064b1593d00a60107d09dd99
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
Antonio Ojea
Manjunath Kumatagi
chendotjs
hui luo
Jacob Tanenbaum
hzxuzhonghu
Aaron Crickenberger
Dr. Stefan Schimanski