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Re: Gear link from container localhost to host localhost address





> > >> Jun 30 16:35:54 localhost.localdomain gear[10239]: Using 10.0.2.15/24
> > >> for 127.0.0.1
> > >
> > > This means we correctly translated localhost to 10.0.2.15 for the mapping
> > 
> > Oh! I I'd hadn't read the output thoroughly. It's forwarding the
> > traffic to the non-loopback IP on the host; not 127.0.0.1
> > 
> > And my receiving test socket was listening explicitly on 127.0.0.1.
> > 
> > So I just need to change that to listen on all interfaces and my test
> > now passes.
> > 
> > Would it be possible to route the connection to the host's loopback
> > address? I guess it would involve tunnels or something.
> 
> It would probably be a new type of link - host loopback as the ToHost vs.
> host public.  We'd have to change the iptables rules, and I actually don't
> know for sure whether you can route to 127.0.0.1 from inside the namespace.
> cc'ing Mrunal.
> 

IP tables forwarding could be used on the host to forward traffic from a particular external port to the 127.0.0.1:<app_port>
and then gear link to access the external port from within a container. 



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