Realizing vhosts with varnish
Stefan Pommerening
pom at dmsp.de
Thu Dec 16 18:41:52 CET 2010
Ok, very good statement - normally I know the override mechanism used by
the custom VCL.
Nevertheless my last email was incorrect - sorry for that.
But: What happens when you include a vcl_recv INSIDE another vcl_recv
subroutine?
This is what Frank did.
Stefan
--
http://dmsp.de
Am 16.12.2010 17:59, schrieb Per Buer:
> On Thu, Dec 16, 2010 at 2:30 PM, Stefan Pommerening <pom at dmsp.de
> <mailto:pom at dmsp.de>> wrote:
>
>
> of couse you only need one single vcl_recv subroutine. This
> applies to all vcl subroutines.
> I usually start with grabbing the default vcl and then add
> everything I need to the existing (default) subroutines.
>
> If you use the include statement you have to keep in mind that
> inclusion is a textual
> substitution - therefore no repeated definition of vcl_recv (or
> even other subroutines)
> is allowed.
>
>
> Actually, multiple definitions of the same subroutine is allowed. They
> are then concatenated, the flow being terminated only by the return
> statements. This is how the default VCL get overridden by your custom
> VCL.
>
> There is a good example in the man vcl. Of course, this might get very
> confusing when you have multiple vcl_recv subroutines spread over
> several included files. Caution advised. :-)
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