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Mohammad_1363's avatar
Mohammad_1363
Icon for Altocumulus rankAltocumulus
Aug 27, 2021

iRule that can forward traffic based on endpoint and http-method

Hello iRule Guru

currently i have an iRule that is doing two things, 1: if the http uri has /path1/example/ or /path2/example/ the traffic should go to pool-example

2: then if host equals api.example.com replace the header with host api.newexample.com.

the above conditions are working fine but we discovered that application needs one more condition, the additional condition would be if the uri has version2/sport1 and http method is POST, forward traffic to sport pool, can you please help me to write that condition.

 

when HTTP_REQUEST {

 if { [string tolower [HTTP::uri]] starts_with "/path1/example/" or [string tolower [HTTP::uri]] starts_with "/path2/example/"} {

      pool pool-example

 } elseif { [string tolower [HTTP::host]] equals "api.example.com" } {

HTTP::header replace "Host" "api.newexample.com"

pool api-newexample-com

 }

}

 

Thanks

 

 

 

 

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  • spalande's avatar
    spalande
    Icon for Nacreous rankNacreous
    Aug 27, 2021

    You can try below code

     

    when HTTP_REQUEST {
if { [string tolower [HTTP::host]] equals "api.example.com" } {
HTTP::header replace "Host" "api.newexample.com"
pool api-newexample-com
return
}
switch -glob [string tolower [HTTP::uri]] {
 "/path1/example*" -
 "/path2/example*"
 { 
 pool pool-example
 } 
 "/version2/sport1*"
 {
  if { [HTTP::method] eq "POST"} {
  pool sport_pool
    } else {
   reject
  }
 } default  { 
  return 
    }
   }
 }

     

  • xuwen's avatar
    xuwen
    Icon for Cumulonimbus rankCumulonimbus
    Aug 27, 2021

    when HTTP_REQUEST {

     if { [string tolower [HTTP::uri]] starts_with "/path1/example/" or [string tolower [HTTP::uri]] starts_with "/path2/example/"} {

          pool pool-example

     } elseif { [string tolower [HTTP::host]] equals "api.example.com" } {

    HTTP::header replace "Host" "api.newexample.com"

    pool api-newexample-com

     } elseif { ([HTTP::method] eq "POST") and ([HTTP::uri] contains "version2/sport1") } {

    pool sport_pool

    }

    }