Forum Discussion

JemW_329006's avatar
JemW_329006
Icon for Nimbostratus rankNimbostratus
Apr 03, 2019

irule - basic insertion of text to url

An irule is used to capture requests to our https domains and redirect appropriately. All entries in this irule have been simple redirects from external address to the internal server on the same in...
application delivery
BIG-IP
iRules
Super-NetOps
Kai_Wilke's avatar
Kai_Wilke
Icon for MVP rankMVP
Apr 03, 2019

Hi JemW,

a very minimalistic iRule will look like below...

when HTTP_REQUEST {
    set low_uri [string tolower [HTTP::uri]]
    if { $low_uri starts_with "/xyz"} then {
        pool Pool_xyz
    } elseif { $low_uri starts_with "/x"} then {
        pool Pool_x
    } elseif { $low_uri starts_with "/abc"} then {
        HTTP::path "/scripts[HTTP::path]"
        pool Pool_abc
    }
}

Note: Depending on how the web application is made, you may need to modify the HTTP responses too. If the application references 

/scripts/abc
in its HTML/CSS/etc., you will need to adjust those references to 
/abc
before sending the response to your clients. Be warned, it will be time consuming to adjust complex applications...

Cheers, Kai