Varnish 4.1 to HTTP/S backend

Per Buer perbu at
Fri Jan 8 10:06:10 CET 2016

Hi Phil.

On Fri, Jan 8, 2016 at 9:46 AM, Phil Daws <uxbod at> wrote:

I read that Varnish 4.1 is now able to pull from a HTTP/S backend but could
> not find any examples of how to do that; is that correct ?

Unfortunately not. It should be possible to write a https VMOD now, it
might be quite cumbersome to write (the internal APIs are not all in place)
but nobody has picked up the glove (yet). If I recall correctly you might
not be able to reuse the internal HTTP client inside varnishd when writing
the VMOD which means you'll have to use an external https capable library
and redo a lot of the backend semantics. But I haven't looked into this in
a while so take all this with a grain of salt. If somebody know more I'm
sure I'll be corrected or confirmed.



*Per Buer*
CTO | Varnish Software AS
Cell: +47 95839117
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