Dear HAProxy Developers community:
After incorporating inputs from some of you, we tested with an updated
haproxy.cfg (see below). Product-1 is still not accessible via HAProxy
(see logs below). We would appreciate any insights to solve this issue.
___Haproxy.cfg file_
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
server Product1.VM0 12.12.12.112:6012 cookie pad-p check
backend subdomain_p1-backend
http-request set-header Host 12.12.12.112:6012
reqirep ^([^\ :]*)\ /Product1/(.*) \1\ /\2
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
Info.log
Conditional backend
Sep 30 09:12:44 localhost haproxy[1691]: 192.168.100.153 - - "GET
/CoscendPad HTTP/1.1" 404 262 "" "" 53639 804 "webapps-frontend"
"subdomain_p1-backend" "Product1" 5 0 0 3 8 ---- 4 4 0 0 0 0 0 "" ""
Default backend:
Sep 30 09:12:44 localhost haproxy[1691]: 192.168.100.153 - - "GET
/favicon.ico HTTP/1.1" 200 4603 "" "" 53639 813 "webapps-frontend"
"webapps-backend" "Product1" 30 0 0 3 34 ---- 1 1 0 0 0 0 0 "" ""
Thank you.
-- --
Sincerely,
Susheel Jalali
Coscend Communications Solutions
[email protected]
Web site: www.Coscend.com
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On 09/30/15 00:59, Susheel Jalali wrote:
>
> 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 or 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
orhttp://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,
> --
>
> Susheel Jalali
>
>
> Coscend Communications Solutions
> Web site: www.Coscend.com
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