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Tomasz_93254's avatar
Tomasz_93254
Icon for Nimbostratus rankNimbostratus
Feb 18, 2011

Irule strange problem

I have the following Irule on my LTM F5:

 

 

when HTTP_REQUEST {

 

set subpath [HTTP::uri]

 

if {[HTTP::host] equals "aaa.co.uk"} { HTTP::respond 301 Location "http://www.aaa.co.uk$subpath" }

 

elseif {[HTTP::host] contains "www.aaa.co.uk"} {use pool pl_it_www-aaa-co-uk_p80 }

 

elseif {[HTTP::host] contains "www.aaa.com"} {use pool pl_it_www-aaa-com_p80 }

 

elseif {[HTTP::host] equals "bbb.com"} { HTTP::respond 301 Location "http://www.bbb.com$subpath" }

 

elseif {[HTTP::host] equals "www.bbb.com" and [HTTP::uri] contains "/qqq"} { HTTP::respond 301 Location "http://www.bbb.com" }

 

elseif {[HTTP::host] equals "www.bbb.com" and [HTTP::uri] contains "/default.html"} { HTTP::respond 301 Location "http://www.bbb.com" }

 

elseif {[HTTP::host] contains "www.bbb.com"} {use pool pl_it_www-bbb-com_p80 }

 

}

 

 

The rule works fine but only if there is a default pool associated in virtual server configuration. If I change this Default Pool to None from the drop down, the Irule stops working. Any obvious reasons why it happens?

 

 

BRs

 

 

application delivery
dev
devops
iRules
  • hooleylist's avatar
    hooleylist
    Icon for Cirrostratus rankCirrostratus
    Feb 18, 2011
    Can you try this? It's explicitly setting the pool or redirect for each case. 

    when CLIENT_ACCEPTED {
    Save the VS default pool name
   set default_pool [LB::server pool]
}
when HTTP_REQUEST {
   switch [string tolower [HTTP::host]] {
      "aaa.co.uk" { HTTP::respond 301 Location "http://www.aaa.co.uk[HTTP::path]" }
      "www.aaa.co.uk" { pool pl_it_www-aaa-co-uk_p80 }
      "www.aaa.com" { pool pl_it_www-aaa-com_p80 }
      "bbb.com" { HTTP::respond 301 Location "http://www.bbb.com[HTTP::path]" }
      "www.bbb.com" {
         switch -glob [HTTP::path] {
            "*/qqq*" { HTTP::respond 301 Location "http://www.bbb.com" }
            "*/default.html" { HTTP::respond 301 Location "http://www.bbb.com" }
            default { pool pl_it_www-bbb-com_p80 }
         }
      }
      default {
         pool $default_pool
      }
   }
}

    Aaron
  • Tomasz_93254's avatar
    Tomasz_93254
    Icon for Nimbostratus rankNimbostratus
    Feb 21, 2011
    I have tried this and the script is not working either. NOnetheless I think I found the root of the problem.

     

    When I did debugging:

     

    ------

     

    when HTTP_REQUEST {

     

    log local0. " URI: [HTTP::uri], Host: [HTTP::host] ,Path: [HTTP::path]"

     

    ------

     

    Sample log shows:

     

    URI: http://www.bbb.com/aaaa, Host: ,Path: http://www.bbb.com/aaaa

     

    ---

     

    HTTP::host for some reason is not set, which is most probably the reason none of the if statements were matched.Any idea why HTTP::host is empty? How can I obtain the host which should be www.bbb.com?