Le 22/09/2017 à 03:13, rt3p95qs a écrit :
Is it possible to assign TCP (no HTTP) connections to a backend based
on an alias haproxy has?
For example:
HAProxy has 3 alias names, server01.example.com
<http://server01.example.com>, server02.example.com
<http://server02.example.com> and server03.example.com
<http://server03.example.com>.
The haproxy.conf file defines a front end and 3 back ends:
frontend static-svc
bind *:80
mode tcp
option tcplog
default_backend svc-svc-default
backend stactic-svc01
balance source
option tcplog
server server01 127.0.0.1 check
backend static-svc02
balance source
option tcplog
server server02 127.0.0.2 check
backend static-svc03
balance source
option tcplog
server server03 127.0.0.3 check
The idea being that each static-service should only service in coming
requests thru a specific alias; therefore, requests coming from the
internet looking for server01.example.com
<http://server01.example.com> would be sent to the static-svc01 back
end. I have seen tons of examples on how to do this with HTTP, but I
can't find any that focus on pure TCP. My application does not use
HTTP at all.
Thanks.
Hello,
sorry if i'm wrong but server name is not part of TCP , TCP only knows
about IP and port, so you must have another protocol above TCP to adress
server name. Natively Haproxy only knows about TCP and HTTP, if you know
how works your protocol you can use :
tcp-request inspect-delay XX
tcp-request content capture <sample> len <length>
you can find what you can capture here :
Layer 4 :
https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#7.3.3
Layer 5 :
https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#7.3.4
Layer 6 :
https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#7.3.5
At layer 6 you have the payload :
https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#7.3.5-req.payload
you can maybe use this to establish conditions.
Have a look at this thread also :
https://www.mail-archive.com/[email protected]/msg25879.html
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