net/http: Please offer function "ServeTLS"

[HouzuoGuo]

In package net/http, there's a pair of Listen* functions: ListenAndServe, ListenAndServeTLS.

It would be incredibly helpful to offer both Serve and ServeTLS as well.

[bradfitz]

Serve already exists:
https://golang.org/pkg/net/http/#Server.Serve

We may do something more in Go 1.7, especially in light of LetsEncrypt, making that a bit easier. We'll see.

[Gurpartap]

I had to serve (with TLS) on systemd provided fds listener (socket activation).

Here's a Server.ServeTLS I put together from existing code in Server.ListenAndServeTLS:
Gurpartap/go@31135bf

Tested to work with systemd socket listening on 443 and using ServeTLS with listener provided by https://github.com/coreos/go-systemd/tree/master/activation

(If it matters, I'm using this with LetsEncrypt provided cert/key in my project, not that the function's exclusively for this purpose)

[odeke-em]

@Gurpartap are you interested in making that a patch that's code reviewable on Gerrit since we
can't review patches here?

[gopherbot]

CL https://golang.org/cl/38114 mentions this issue.

[niklas88]

@bradfitz I haven't seen any changes or comments to address your comments from March, is there some way I can help and take over this CL? This would be very helpful for my home automation project which uses systemd socket activation. If this doesn't make it into 1.9 I'll have to resort to a much uglier custom copy of this code.