On Wed, Sep 3, 2014 at 3:03 AM, Brian Torres <[email protected]> wrote: > is there a way to rig thousands of haproxy backends without enumerating each > one? I've been attempting to route using use-server and server based on a > header value but have so far failed. I've been trying things like this: > > # where X-Request-Proxy = http://example.internal:4180 > backend default > use-server l2_backend if { hdr(X-Request-Proxy) -i 4180 } > server l2_backend %[hdr(X-Request-Proxy)] weight 0 > > I've asked a similar question in IRC to no avail!
Hi Brian, You could do this with a few lines of configuration. Define a frontend, where you duplicate your X-Request-Proxy into an other header. >From here, clean up everything but the port (or the relevant information) in the new header. In your backend, do something like this: use-server %[hdr(X-New-Header)] server 4180 1.2.3.4 the server name must be the information copied into the new header. Cheers
