On Thu, Sep 17, 2009 at 2:31 PM, David Birdsong
<david.birdsong#gmail.com> wrote:
> On Thu, Sep 17, 2009 at 2:19 PM, Hank A. Paulson
> <hap#spamproof.nospammail.net> wrote:
>>
>>
>> On 9/17/09 1:17 PM, David Birdsong wrote:
>>>
>>> I'm having trouble with the syntax of the hdr* matching for creating
>>> ACL's.
>>>
>>> I know that my control flow is correct. by changing the acl
>>> defiinition to a simple src ip, i get the desired change of backends.
>>>
>>> ie. this will send traffic to img backends (desired)
>>> # acl from_vnsh hdr_sub -i nginx
>>> acl from_vnsh src 208.94.1.44
>>> use_backend varnish if METH_GET ! from_vnsh
>>> default_backend img
>>>
>>> this will send it to varnish:
>>> acl from_vnsh hdr_sub -i nginx
>>> # acl from_vnsh src 208.94.1.44
>>> use_backend varnish if METH_GET ! from_vnsh
>>> default_backend img
>>
>> I think the problem is you shouldn't have the METH_GET in there
>> use_backend varnish if ! from_vnsh
>> works for me
> oh, i thought there was an implicit AND when two expressions were put
> together...which i know is true for the src based acl. i only want
> GETs to go to this backend.
>
>>
>>>
>>>
>>> furthermore, is there a way to match on a header field and not the
>>> field's value?
>>> i have a field:
>>> X-Varnish: 751121622
>>>
>>> i want to create the acl simply based on X-Varnish being present
>>> irrespective of the value of this field.
>>>
>>
>> acl varn_present hdr_cnt(X-Varnish) gt 0
> thanks i'll try this.
thanks much, this solved it for me.
>
>>
> to be more clear, haproxy is to direct the first GET to varnish which
> in turn will send the request back through haproxy, this is where i
> want to direct the request to another backend.
>
Received on 2009/09/17 23:56