Upgrading from v3 to v5 - XFF and client.identity

[Andrei]

Hi Mark,

I suggest going over the following blog post for the changes you're looking
for. Good luck moving forward :D

https://info.varnish-software.com/blog/proper-sticky-session-load-balancing-varnish


On Tue, Mar 28, 2017 at 4:52 AM, Mark Hanford <mark at hanfordonline.co.uk>
wrote:

> Hi folks. I'm in the process of trying to upgrade our current v3 config to
> v4+ for upgrading to Varnish 5.
>
> In my old v3 config, I use the XFF header to change the client.identity if
> it is present.
>
>     # For session-persistence, set a client identity.
>     # We're using the client's IP for this to ensure server-persistence.
>     if (req.http.X-Forwarded-For) {
>         set client.identity = req.http.X-Forwarded-For;
>     } else {
>         set client.identity = client.ip;
>     }
>
> It is important that a request from one remote client goes to the same
> backend every time, when possible. Do I still need to deal with this, or
> will this be handled transparently in some way?
>
> I suspect I'll have more questions as I go along, so I apologise in
> advance for the spam :)
>
> thanks,
>
> Mark
>
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