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Forum Discussion

Thiyagu's avatar
Thiyagu
Icon for Cirrus rankCirrus
Jan 20, 2020

Irule for an URI redirection

Hello All, I have created an irule for an URI redirection and the expected flow as below:   1- Client to LB : https://www.domain1.com/resource1 2- LB to Client: Permanent URI redirection to an ...
application delivery
iRules
Leonardo_Souza's avatar
Leonardo_Souza
Icon for Cirrocumulus rankCirrocumulus
Jan 20, 2020

Try this:

when HTTP_REQUEST {
 
   set NEW_URI "/resource2"
 
   switch -glob [string tolower [HTTP::uri]]
 
   "/resource1"
 
    {
 
     HTTP::respond 301 Location "https://[HTTP::host]$NEW_URI"
 
    }
 
   }
  • Thiyagu's avatar
    Thiyagu
    Icon for Cirrus rankCirrus
    Jan 21, 2020

    Thanks Leonorodo for helping me. For some reason these irule are not working as expected while executing the traffic flow:

     

    ==============================irule 2========To replace the URI to the server

    when HTTP_REQUEST {

        if {[string tolower [HTTP::uri]] starts_with "/resource1"}{

            set newuri [string map -nocase {"/provision" "resource2"}[HTTP::uri]]

            HTTP::uri $newuri

            pool POOL1

            }

        }

    ====================================

     

    ===============irule 3================To redirect back to the client with an new URI value for further communications

    ===================================

          when HTTP_REQUEST {

             set NEW_URI "/resource2"

               switch -glob [string tolower [HTTP::uri]] {

                 "/resource1" {

                       HTTP::redirect 301 "https://[HTTP::host]$NEW_URI"

                 }

                }

           }

    =========================================

     

    Could you please help me to fix the issue?

     

    Regards,

    Thiyagu

     

    • jaikumar_f5's avatar
      jaikumar_f5
      Icon for Noctilucent rankNoctilucent
      Jan 21, 2020

      Can you define what is not working. Hows the flow going to and fro and what is being seen and what are you expecting. The above shared should do the trick unless something is rewriting it and goes unexpected.

    • Thiyagu's avatar
      Thiyagu
      Icon for Cirrus rankCirrus
      Jan 21, 2020

      Hi Jaikumar,

      The expected goal is as below:

      Option 1:

      From client to LB:

      https://www.domain1.com/resource1

       

      From LB to the server:

      https://www.domain1.com/resource2

       

      If the above option is difficult to achieve it then we can try for the below option:

      Option2:

      From client to LB:

      https://www.domain1.com/resource1

       

      From LB to the client with redirection 301:

      https://www.domain1.com/resource2

       

      I have tried irule for both the option and the results are as below:

      Option 1: all the URI values are replaced with the value of /resource2

       

      Option2: I'm getting blank page

       

      Could you please help me to identify if i'm missing something to meet my objective?

       

      Regards,

      Thiyagu