Hello again, I was migrating a setup from the older style acl-based host to backend mapping, to the newer map-based approach, e.g.
use_backend %[req.hdr(host),lower,map_beg(mapping.conf,default)] and that works fine. But now I'm tempted to simply name the backends after each servername, (eg. 'mail' from mail.google.com, or 'maps' from maps.google.com). Which in my imagination would look something like: use_backend %[req.hdr_beg(host),lower] But is there a way to substring or regex off the front of the host string, and pass that to the use_backend call? In other words, continuing the google.com example, if people are hitting the server with "host: mail.google.com", and maps.google.com, and just for completeness, notes.books.google.com, I'd like to have backends: backend mail mode http foo .... backend maps mode http bar ... backend notes.books mode http baz .. Is there a way to accomplish this without building them into a mapped file in 1.5.x? (1.6 solutions are okay too, but won't be able to move to that until it's in stable.) Phillip
