Dear all,
thanks for your input. I tried baptiste's configuration and it did not
solve my problem. I have a feeling we are getting there (we already kill a
bug). Any further ideas would be more than welcome :)


On Thu, Dec 12, 2013 at 2:29 PM, Baptiste <[email protected]> wrote:

> On Thu, Dec 12, 2013 at 12:35 PM, Athanasios | ZenGuard
> <[email protected]> wrote:
> > Dear HAProxy list,
> > I have a question regarding ACL logic.
> > First of all some background to my predicament:
> > recently we switched to different API and WWW slices. Usually, updated
> > clients will call api.somewhere for API and www.somewhere for WWW. This
> > holds true for 90% of the cases. A number (let's say 10%) have not
> updated
> > their clients yet and they use the old scheme somewhere/api/etc to access
> > the API. I am trying to provide a hotfix for that using HAProxy. Here is
> my
> > relevant configuration which does NOT work:
> >
> >     acl is_api hdr_beg(host) -i api or path_beg -i api
> >     acl is_www hdr_dom(host) -i www.somewhere
> >     use_backend api if is_api
> >     use_backend www if is_www
> >     use_backend www if !is_api
> >
> > the problem is that when I curl www.somewhere/api/etc, HAProxy will use
> the
> > is_www ACL, resulting in a 404 (and a non-working client for the
> minority of
> > the users).
> >
> > Any input on how can I fix that would be more than welcome :)
>
>
> Hi,
>
> The OR function in acls doesn't work as you expected it to do.
> Here, you're looking for either api, or, path_beg, -i, api => all of
> them in the beginning of the host header.
>
> You can give a try to the configuration below:
> acl is_api hdr_beg(host) -i api
> acl is_api path_beg       -i api
> acl is_www hdr_sub(host) -i .somewhere.
> use_backend api if is_api
> use_backend www if is_www OR !is_api
>
> Baptiste
>

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