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Andrew_Watson_1's avatar
Andrew_Watson_1
Icon for Nimbostratus rankNimbostratus
Feb 24, 2014

Pool selection with uri rewrite for Ellucian Banner

Hello!   I am fairly new to the f5 and LBs in general. We have several back end servers that are currently serving multiple websites on different TCP ports. We are looking to load balance these ...
application delivery
BIG-IP Access Policy Manager (APM)
deployment
design
devops
iRules
LTM
security
  • IheartF5_45022's avatar
    IheartF5_45022
    Feb 25, 2014

    Sorry forgot the sample datagroup;

    ltm data-group internal dg_path_list { 
records { 
    "/forms" { 
         data "pool pl_foo.com_8888" 
     } 
    "/reports" { 
        data "pool pl_foo.com_9002" 
    } 
    "/SSB" { 
        data "rewrite /test" 
    } 
} 
type string 
}
IheartF5_45022's avatar
IheartF5_45022
Icon for Nacreous rankNacreous
Feb 24, 2014

Add a datagroup;-

and an iRule (untested but you should get the idea);

when HTTP_REQUEST {
     Match request path against datagroup and extract both key and value
    set ele [class match -element [string tolower [HTTP::path]] starts_with $dg_path_list]
     Switch on element value
    switch -glob [lindex $ele 1] {
        "pool *" {
            if {[catch {pool [getfield [lindex $ele 1] " " 2]}]} {
                 Error in datagroup - pool does not exist
                HTTP::respond 500 noserver
            }
            return
        }
        "rewrite *" {
             Check rewrite path valid
            if {[getfield [lindex $ele 1] " " 2] starts_with "/"} {
                 Substitute match path (key) with rewrite value from element value
                HTTP::uri "[getfield [lindex $ele 1] " " 2][substr [HTTP::uri] [string length [lindex $ele 0]]]"
            } else {
                 Error in datagroup - path not valid
                HTTP::respond 500 noserver
            }
        }
        default {
             Do nothing
        }
    }
}