Forum Discussion

hkatzler_36651's avatar
hkatzler_36651
Icon for Nimbostratus rankNimbostratus
Jul 23, 2009

http redirect with using different pools

Hello,

i need an iRule to redirect http requests. I have to use different pools for diffrent redirects.

Sample:

http://keyaccount.company.com should redirect to http://keyaccount.othercompany.net/path/path/index.html and use pool 1 for the redirect.

http://marketing.company.com should redirect to http://marketing.anothercompany.org/path/path/index.html and use pool 2 for the redirect. 

 
 when HTTP_REQUEST {  
     if { [HTTP::host] contains "keyaccount.company.com" } {  
         HTTP::redirect "http://keyaccount.othercompany.net/path/path/index.html"  
         This redirect should use pool 1. But how can i do this?     
  
     }   elseif { [HTTP::host] contains "marketing.company.com" } { 
         HTTP::redirect "http://marketing.anothercompany.org/path/path/index.html" 
         This redirect should use pool 2. And so on..... 
   } 
 }

I hope, someone can help me. Thank you for response!

Heiko
application delivery
dev
devops
iRules

5 Replies

Sort By
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jul 23, 2009
    Hi Heiko,

    I think you want to rewrite the host and/or URI not redirect the client to a new location. Here is an example to get you started: 

     
 when HTTP_REQUEST { 
    switch [string tolower [HTTP::host]] { 
  "keyaccount.company.com" { 
           Rewrite / to /path/path/index.html 
          if {[HTTP::path] eq "/"}{ 
             HTTP::uri "/path/path/index.html" 
          } 
  
           Rewrite host header to keyaccount.othercompany.com 
          HTTP::header replace Host "keyaccount.othercompany.com" 
  
           Use pool1 
          pool pool1 
      } 
  "keyaccount.company.com" { 
           Rewrite / to /path/path/index.html 
          if {[HTTP::path] eq "/"}{ 
             HTTP::uri "/path/path/index.html" 
          } 
  
           Rewrite host header to keyaccount.othercompany.com 
          HTTP::header replace Host "keyaccount.othercompany.com" 
  
           Use pool1 
          pool pool1 
       } 
       default { 
           Take some default action for other host header values? 
       } 
    } 
 }

    Aaron
  • hkatzler_36651's avatar
    hkatzler_36651
    Icon for Nimbostratus rankNimbostratus
    Jul 23, 2009
    Hi Aaron,

     

     

    yes, i want redirect the client to another location. The client comes with 'http://keyaccount.company.com' an should redirect to location http://keyaccount.othercompany.net/path/path/index.html. In this case i want to use a special pool for the redirection to the other location.

     

     

    I want to use the same for http://marketing.company.com > http://marketing.anothercompany.org/path/path/index.html with special pool for the redirection to the other location.

     

     

    Similar to URL rewriting with apache reverse proxy function.

     

     

    Heiko
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Jul 23, 2009
    Rewriting a URI would mean that LTM changes the requested host and/or URI before sending the request to the pool. The client would not see the change to the request as long as the application doesn't include the rewritten host and/or URI in response headers/content. For HTTP, the term redirecting the client denotes sending a 30x response with the Location header set to the new location. The client would see the change in host and/or URI. If the host was changed in a redirect, the client would resolve the new host value to an IP address and make a new HTTP request to that host.

     

     

    Do you want the client to see the change in host and/or URI? Do the new host values resolve to the same virtual server as the original? The iRule example I posted rewrites the host and URI without redirecting the client. For a more expansive Apache ProxyPass iRule, you can check the Codeshare for two examples (Click here).

     

     

    Aaron
  • WUM_113639's avatar
    WUM_113639
    Icon for Nimbostratus rankNimbostratus
    Nov 29, 2009
    Hi Aaron,

     

     

    On top of your discussion, my question is that Is there any catch involved if we redirect from HTTPs to HTTP in the same situation, or the same configuration will do!!!
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Nov 30, 2009
    Hi Wum,

     

     

    That example could be used on an HTTP VIP or an HTTPS VIP with a client SSL profile enabled to decrypt the SSL.

     

     

    Aaron