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Kiran_Kumar's avatar
Kiran_Kumar
Icon for Nimbostratus rankNimbostratus
Aug 14, 2013

irule to switch uri based of a class file

Hi there, I am beginner in terms of coding irules. I seek your help in coding an irule. My scenario is I need to switch multiple uris. I kind of know how to do it usinga switch statement. But as part of standards followd at my work place. I need to code something generic which can be used across different platforms. So I need help how to use a class file to trigger uri swictc. Thanks for the help.

 

--KG

 

application delivery
devops
iRules

7 Replies

  • uni_87886's avatar
    uni_87886
    Icon for Cirrostratus rankCirrostratus
    Aug 14, 2013

    From a data-group, you don't need to use a switch statement. Below is something I use:

    ltm data-group internal url-redirect-class {
    records {
        /from1 {
            data /to1
        }
        /from2 {
            data /to2
        }
    } 
}

ltm rule redirect-rule {
    when HTTP_REQUEST {
      set path [string tolower [HTTP::path]]
      set redirect_url [class match -value -- $path equals url-redirect-class]
      if { $redirect_url ne "" } {
         HTTP::redirect $redirect_url
         return
      }
   }
}
  • uni's avatar
    uni
    Icon for Altocumulus rankAltocumulus
    Aug 14, 2013

    From a data-group, you don't need to use a switch statement. Below is something I use:

    ltm data-group internal url-redirect-class {
    records {
        /from1 {
            data /to1
        }
        /from2 {
            data /to2
        }
    } 
}

ltm rule redirect-rule {
    when HTTP_REQUEST {
      set path [string tolower [HTTP::path]]
      set redirect_url [class match -value -- $path equals url-redirect-class]
      if { $redirect_url ne "" } {
         HTTP::redirect $redirect_url
         return
      }
   }
}
  • Moe_Jartin's avatar
    Moe_Jartin
    Icon for Cirrus rankCirrus
    Aug 14, 2013
    If you are looking to switch (or route) traffic to different pools based on the URI you can use and irule simliar to this: when HTTP_REQUEST { set uri [string tolower [HTTP::uri]] switch -glob $uri { /uri1* { pool http_pool1 } /uri2* { pool http_pool2 } /uri3* - /uri4* - /uri5* { pool http_pool3 } default { pool http_pool4 } } }
  • Moe_Jartin's avatar
    Moe_Jartin
    Icon for Cirrus rankCirrus
    Aug 14, 2013

    If you are looking to switch (or route) traffic to different pools based on the URI you can use an irule simliar to this: 

    when HTTP_REQUEST {
  set uri [string tolower [HTTP::uri]]
  switch -glob $uri {
    /uri1* { 
      pool http_pool1
    }
    /uri2* {
      pool http_pool2
    }
    /uri3* -
    /uri4* -
    /uri5* {
      pool http_pool3
    } default {
      pool http_pool4
    }
  }
}