:wave: I’m trying to make servers “dynamic” by using a “templated” backend with servers pulled from a map backend be_template server-template websrv 1-100 localhost:6666 check disabled use-server %[req.hdr(host),lower,map_dom(/usr/local/etc/haproxy/domain2server.map,websrv0)] if { req.hdr(host…

Seems like it is not possible, haproxy just does a strcmp without expanding what’s inside %[] … The only option I have left now is to regenerate the whole config and reload haproxy or look for some other reverse proxy (traefik might be a good fit) for this particular use case. But there’s a workar…

My use case is similar to gitlab review apps – on some PRs I want to be able to start web apps each with its own subdomain which would register themselves with haproxy via a socket like this: set server be_template/websrv<i> addr <app_host> port <app_port> set server be_template/websrv<i> state rea…

I’ve also asked this question on the mailing list: https://www.mail-archive.com/haproxy@formilux.org/msg32843.html

%[] in use-server

Help!

idiot February 18, 2019, 4:26pm 2

I think Dynamic server selection might be related. I thought about using a lua script to pick the server but it seems it’s not supported either.

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%[] in use-server

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