How do I serve a single static file from HAProxy?

Help!
10

@sam, I’m sure you found an acceptable solution a long time ago, but I found this thread today and am not using this solution to disallow robots indexing on all of my backends at once with this frontend LUA config.

My specific robots.txt response uses this as the ACL to match to call the function.
Name Expression Value Actions
robots Path ends with: robots.txt

frontend config:

	acl			robots	path_end -i robots.txt
	http-request use-service lua.robots  if  robots aclcrt_SharedFront

LUA file:

robots = function(applet) 
local response = "User-agent: *\nDisallow: /"
applet:add_header("Content-Length", string.len(response)) 
applet:add_header("Content-Type", "text/plain") 
applet:set_status(200) 
applet:start_response() 
applet:send(response) 
end 

core.register_service("robots", "http", robots)
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