hostname resolution

[gquintard]

@sudazzle opened varnish/docker-hitch#5 and while there's a work around to fix it at the docker-compose level, it could be interesting to have hitch be a bit more tolerant about this and notably do an on-the-fly resolution before opening a socket.

I know varnish function the same way, but hitch doesn't have vmod_goto and vmod_dynamic to sidestep the issue.

[daghf]

We do already have a feature that enables Hitch to periodically refresh the backend IP number. Is this workable as a solution here?

via hitch.conf(5)

backend-refresh = <number>
--------------------------

Number of seconds between periodic backend IP lookups, 0 to disable.
Default is 0.

[gquintard]

that's one of those cases where I think doing it in the critical path would make more sense, but the current solution will work. Sorry I missed it