I suspect what I am trying to do here falls outside of Varnish's intended
purpose but here is what I am trying to do...
Instead of using Varnish to cache content for a single site with several
backends, I want to use it to allow me to serve existing sites on different
domains.
For example I can run varnish on test.com and serve content from
example.comusing this configuration.
backend test {
.host = "example.com";
.port = "80";
}
sub vcl_recv {
set req.http.host = "example.com";
set req.backend = test;
return(pass);
}
But what if I have 1000s of backends and I choose them based on the domain
that user's hit varnish with. Is this something Varnish handles or is it
only intended to work with a handful of backends?
Also, it would be really cool if I could do something like this..
sub vcl_recv {
set req.http.host = "example.com";
set req.backend.host = req.http.host;
return(pass);
}
I'm guessing backends are defined ahead of time for connection pooling but
maybe not.
Anyway, this is long enough, tell me if I would be nuts to try to do this
with Varnish and if so what would be better. I'm tempted to write my own
proxy but that seems like such a waste. :-)
Tony
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