I need to add server name in response HTTP headers X-Servedby. Is there any way to replace [server] with name of server that has served request?
frontend front x.x.x.x:80
default_backend balancing
rspadd X-Servedby:\ [server] #I need to replace [server]
backend balancing
server srv1 x.x.x.x:80 check
server srv2 x.x.x.x:80 check