Forum Discussion

viziony's avatar
viziony
Icon for Cirrus rankCirrus
Nov 21, 2022

Simple iRule to route to particular pools based upton a specific header value.

I am hoping this is a simple ask (nobbie in iRule scripting) , I am trying to create an irule that will route to specific pools based up on cookie header value.  For e.g.  Cookie header "Toggle" V...
devops
  • Mohamed_Ahmed_Kansoh's avatar
    Mohamed_Ahmed_Kansoh
    Nov 21, 2022

    Hi viziony , 

    Could you please try this : 

     

    when HTTP_REQUEST {
if { [HTTP::header "Toggle"] equals "YES" }{
    pool pool_A
} else {
    pool pool_B
   }
}
#you can replace "equals" operator by "contains"

     

    Try it and give me your feedback 
    hope this helps you. 

  • Leslie_Hubertus's avatar
    Leslie_Hubertus
    Nov 29, 2022

    Hi viziony  - it looks like you gave a kudo to Mohamed_Ahmed_Kansoh 's reply, so I'm going to mark that as the Accepted Solution to make it easier for someone else to see the answer. If that answer didn't help you, please let me know so I can change that status. 🙂

viziony's avatar
viziony
Icon for Cirrus rankCirrus

Would it be something like this 

when HTTP_REQUEST {

if { [HTTP::header "Toggle"] is "YES"  }

{ pool pool_A }

else

{ pool Pool_B } }

F5_Design_Engineer's avatar
F5_Design_Engineer
Icon for MVP rankMVP
Nov 23, 2022

Hi Viziony,

You can also try,

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

when HTTP_REQUEST{
if { [string tolower [HTTP::header values "Toggle"]] contains "YES"} {
pool pool_A
} else {
pool pool_B
}
}

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

 

Here are few links for further ready:


K27803480: iRule for selecting a Pool or Pool-member based on HTTP Request URI contents.
https://support.f5.com/csp/article/K27803480

See more articles here

DevCentral Technical Articles iRules 101 - #05 - Selecting Pools, Pool Members, ...
https://community.f5.com/t5/technical-articles/irules-101-05-selecting-pools-pool-members-and-nodes/ta-p/277059

Clouddocs > > HTTP::header
https://clouddocs.f5.com/api/irules/HTTP__header.html


iRules Recipe 3: Pool and SNAT Selection by Host Header Value
https://community.f5.com/t5/technical-articles/irules-recipe-3-pool-and-snat-selection-by-host-header-value/ta-p/290571

https://community.f5.com/t5/codeshare/select-pool-based-on-http-host-header/ta-p/278199

Cooking with iRules - HTTP
https://readthedocs.org/projects/f5-agility-lab-template/downloads/pdf/latest/

 

HTH