Dear HAProxy Developers,
We are implementing HAProxy for reverse proxy load balancing for the
first time in our LAN. We are seeking your guidance below to optimize
our HAProxy configuration. Currently, we are unable to access our fully
working products via HAProxy on two different servers. We would
appreciate any pointers to learn from so that we could solve this
HAPRoxy conditional backend issue.
Issue: "Cannot get /Product1"
We have working products (Product-1, 2, 3, …) instances residing on 2
servers hosted in internal LAN. HAProxy is in DMZ. We are using the
following haproxy.cfg template to configure access to our products
behind HAProxy:
·Live Product-1 can be accessed directly:
http://Server_IP:Port#_of_Product1
<http://server_ip:Port/#_of_Product1> orhttp://Coscend.com:Port#_of_Product1
<http://coscend.com:Port/#_of_Product1>
·HAProxy stats on Web browser show all working products are UP.
·But we cannot access them via HAProxy by their names, Product1,
Product2, ...
Access URL of Product 1 via HAProxy reverse proxy:
http://HAProxy_Server_IP:Port#_of_HAProxy/Product1
<http://haproxy_server_ip:Port/#_of_HAProxy/Product1> orhttp://Coscend.com/Product1
<http://coscend.com/Product1>
Test scenario created
·Global and Default sections producing proper logs.
·Product-1 is accessible via default backend of HAProxy.
·Bypassing Local DNS issues by using server IP Address and product Port
#s in haproxy.cfg.
·Frontend is working and directing us to Product-1, as seen in the logs.
·Product-1 is not accessible via conditional back end.
-- --
frontend webapps-frontend
bind *:80
acl host_coscend req.hdr(Host) coscend.com:80
acl path_subdomain_p1 path_beg -i /Product1
use_backend subdomain_p1-backend if host_coscend path_subdomain_p1
default_backend webapps-backend
backend webapps-backend
[…]
option http-server-close
backend subdomain_p1-backend
http-request set-header Host 12.12.12.112:6012
acl hdr_location res.hdr(Location) -m found
rspirep ^Location:\ (http?://12.12.12.112(:[0-9]+)?)?(/.*) Location:\
/Product1 if hdr_location
server Product1.VM0 12.12.12.112:6012 cookie pad-p check
Thank you.
Sincerely,
--
Regards,
Susheel Jalali
Coscend Communications Solutions
__
Web site:www.Coscend.com <http://www.coscend.com/>
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