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Forum Discussion

Jonathan_Mansfi's avatar
Jonathan_Mansfi
Icon for Nimbostratus rankNimbostratus
Jun 06, 2016

iRule to allow developers to test specific pool members

I'm new to iRule development, so I apologize if I'm asking a silly question. My department manages the F5 infrastructure, but the resource nodes are managed by multiple internal customers. I have cus...
application delivery
iRules
Stanislas_Piro2's avatar
Stanislas_Piro2
Icon for Cumulonimbus rankCumulonimbus
Jun 07, 2016

Hi,

you can use the following irule:

when CLIENT_ACCEPTED { 
    set default_pool [LB::server pool]
}

when HTTP_REQUEST {
    set target_member [URI::query [HTTP::uri] server]
    if {!($target_member eq "")} {
        pool $default_pool member $target_member
        HTTP::uri [string map -nocase [list "&server=$target_member" "" "?server=$target_member" "" ] [HTTP::uri]]
    }
}

Then, the developer may append parameter server=1.2.3.4 for the first request, then the default persistence profile will be used to persist for next requests.