0

I serve multiple services from my domain using the same HAProxy instance, at domain.com/s1/ and domain.com/s2/ . I would like to do some operations (including ACL matching) only when certain conditions are met within s2. Using acl's like

acl service_1         path_beg   /s1/
acl service_2         path_beg   /s2/
acl service_1_path_1  path_beg   /s2/path1/
acl service_1_path_2  path_beg   /s2/path2/

will lead to all requests being matches for the s2/path1/ and /s2/path2/ patterns, which is wasteful if I know that the vast majority of requests are for s1.

Is there a way that I can say "evaluate for the path_1 or path_2 patterns only if the acl service_2 matches"?

Note that this is not a case of wanting to AND two conditions; I want the second acl to not even be computed unless the first one matches. Is that even possible in HAProxy?

1

HAProxy Multiple Condition Example

Here is one example I use:

acl bot_ok path_end txt
acl bot_ok url_reg ^/$
acl derpy3 hdr_sub(user-agent) -i bash curl wget slack
acl derpy3 req.ver !1.1
http-request silent-drop if derpy3 !bot_ok

Let the bots in and/or use http protocols other than 1.1 IF they hit / or .txt files.

We define multiple acl's, then set the condition and/or negating condition on the action.

  • Thanks; I have something similar to that as well, but I do not even want bot_ok to be computed unless derpy3 evaluates to true. – Animesh Jun 26 '17 at 22:56

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.