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Volodymyr_32240's avatar
Volodymyr_32240
Icon for Nimbostratus rankNimbostratus
Nov 15, 2018

iRule which check uri or path contains

I need to do iRule which check uri or path and send traffic to different pools, and when client try connect to "testweb.com/api/app/1/workstation-params/100" it wiil go to "testweb.com/api/app/workstation-params/100" and pool "pool1"

When client try "/api_aaa" - go to pool "pool2"

When try only "testweb.com/" - go to pool "pool2"

I have irule, but it doesn't work correctly.

when HTTP_REQUEST {
  if { [HTTP::uri] contains "/api/app/1/" } {
  HTTP::path "/api/app/"
  }
  elseif { [HTTP::uri] contains "/api/app/" } { 
        pool pool1
} 
elseif { [HTTP::path] equals "/api_aaa"} {
    pool pool2
} else {
    pool pool2
}
}
application delivery
iRules
LTM

5 Replies

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  • Joel_Breton's avatar
    Joel_Breton
    Icon for Nimbostratus rankNimbostratus
    Nov 15, 2018

    Hi,

    You can try a switch case 

    when HTTP_REQUEST {
    set myuri [HTTP:uri]
    switch -glob [string tolower $myuri]{

    "/api/app/1/" {
        HTTP:path "/api/app/"
        pool pool1
    }
    "/api/app/" { 
        pool pool1
    } 
    "/api_aaa" {
        pool pool2
    } 
    else {
        pool pool2
    }
}
  • crodriguez's avatar
    crodriguez
    Ret. Employee
    Nov 15, 2018

    The HTTP::path "/api/app/" statement in your code is replacing the entire path with the value specified, not just the /api/app/1/ part. As a result, your path is changing from /api/app/1/workstation-params/100, for example, to just /api/app/, and dropping the workstation-params/100 part. To replace just the portion of the path string that needs to change and, more importantly, also select pool1, you could try something like this:

     

    when HTTP_REQUEST {
    if { [string tolower [HTTP::uri]] contains "/api/app/1/" } {
        HTTP::uri [string map { "/api/app/1/" "api/app/" } [string tolower [HTTP::uri]]
        pool pool1
    } elseif { [string tolower [HTTP::uri]] contains "/api/app/" } {
        pool pool1
    } else {
        pool2
    }
}

    I don't see the need to check for "/api_aaa" separately as the last elseif and else conditions in your original code both do the same thing which is to select pool2 - but I could be missing something.

     

  • Danny_Cabrera_3's avatar
    Danny_Cabrera_3
    Icon for Nimbostratus rankNimbostratus
    Mar 14, 2019

    Hello all

     

    I have the following case: If an URL contains: /wps/XMLServlet or /wps/pages/redirect.aspx, not do anything, else redirect to: https://www.mysite.com

     

    My irule is the following

     

    when HTTP_REQUEST { if { ([HTTP::uri] contains "/wps/XMLServlet") or [HTTP::uri] contains "/wps/pages/redirect.aspx")}{ } else { HTTP::redirect ";} }

     

    When I try the irule with: https://www.abc.com/wps/XMLServlet or https://www.abc.com/wps/pages/redirect.aspx, it works well, but when I try: http://www.abc.com/wps/XMLServlet or http://www.abc.com/wps/pages show me the error: The connection was reset

     

    ¿Could you help me with this problem?

     

    • Michael_Saleem1's avatar
      Michael_Saleem1
      Icon for Cirrus rankCirrus
      Mar 14, 2019

      Hi Danny,

      I noticed that from what you have stated, only the 

      HTTPS
      URLs are working; when you try to test with the 
      HTTP
      URLS you get a TCP reset. Correct?

      Could you confirm that you have a virtual server configured listening on port 80 which also has this iRule applied? (NOTE: this virtual server should NOT have any client or server SSL profiles applied)

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