[undertow-dev] Proxy Protocol/Layer-4 load balancing/AWS ELB

[Stuart Douglas]

I have created a JIRA to track this: https://issues.jboss.org/browse/UNDERTOW-573

Stuart

----- Original Message -----
> From: "Christopher Smith" <cbsmith at gmail.com>
> To: "Jason T. Greene" <jason.greene at redhat.com>
> Cc: undertow-dev at lists.jboss.org
> Sent: Wednesday, 4 November, 2015 3:36:12 AM
> Subject: Re: [undertow-dev] Proxy Protocol/Layer-4 load balancing/AWS ELB
> 
> I think ELB constitutes pretty wide usage. ;-)
> 
> People do tend to use the layer-7 load balancing, but given undertow's
> extensive support for http/2 & spdy, the advantages of using layer-4 load
> balancing are significant. I agree it is a very straightforward
> implementation. You mostly just parse one line before handing off the logic
> to some other handler. I'm not familiar with undertow's code base, but I'd
> be happy to work with someone on it.
> 
> --Chris
> 
> On Tue, Nov 3, 2015 at 3:59 AM, Jason T. Greene < jason.greene at redhat.com >
> wrote:
> 
> 
> 
> 
> 
> Sent from my iPhone
> 
> On Nov 2, 2015, at 10:24 PM, Christopher Smith < cbsmith at gmail.com > wrote:
> 
> 
> 
> 
> ELB supports layer-4 load balancing, which would just multiplex inbound TCP
> connections (with an added bonus of offloading TLS), but I'm concerned about
> losing client IP addresses. ELB actually has a way to address this with
> HAProxy's PROXY protocol:
> http://www.haproxy.org/download/1.6/doc/proxy-protocol.txt
> 
> However, I haven't found a place for setting up the PROXY protocol support in
> undertow. Has anyone done this? Is there a way I should be going about it?
> 
> We should probably add support for haproxy's protocol if it has wide usage
> like this. It looks fairly straightforward.
> 
> -Jason
> 
> 
> 
> --
> Chris
> 
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