Access class HS from docker image

[Falci]

It seems like the class HS added in #102 can't be access when running on docker:

Docker log:

ns: ignoring non-local HS class request

Which comes from

hnsd/src/ns.c

Lines 339 to 342 in 42aa53d

	if (!hsk_addr_is_local(&address)) {
	hsk_ns_log(ns, "ignoring non-local HS class request\n");
	goto done;
	}

It would be great to have this feature on docker as well, so it could be used for readiness and liveness when using Kubernetes.

[pinheadmz]

you can execute the dig command locally inside the container with docker exec if that helps ?

[Falci]

I belive that would help, yes. But the image doesn't include dig.