Hi, I’ve been looking into the powerful set-dst feature to enable cross-cluster forwarding. I’d like to have a fallback in case a region has gone down for some reason or another. However, I’m struggling to get it to work with retry-on or redispatch.
I’ve been trying something like: backend b mode http option redispatch http-request set-var(txn.target_host) req.hdr(Host),lower,field(1,:) http-request do-resolve(txn.target_ip,dns) var(txn.target_host) http-request set-dst var(txn.target_ip) http-request set-dst-port int(443) server forward 0.0.0.0:0 ssl verify required ca-file @system-ca sni req.hdr(host) server fallback 127.0.0.1:80 However, I end up with an SH-- on failure. I also tried with retry-on, setting a session variable on http-request and then set-dst 127.0.0.1 if the session variable is set. I feel like there must be a way to do this, but after a few hours of pouring over the docs and trying things out I think I’ve come to the conclusion that it’s not possible. Hopefully someone can give me an insight in to whether this is actually impossible or if I’m missing something obvious. Thanks, Chris.
