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Forum Discussion

Brad_Baker's avatar
Brad_Baker
Icon for Cirrus rankCirrus
Oct 01, 2013

Directing traffic based on query parameter

We need the ability to direct traffic to a specific node on our LTM load balancers based on query parameter.   So for instance if I enter www.foo.com/some-article?s=web-server1 the request would ...
application delivery
devops
iRules
StephanManthey's avatar
StephanManthey
Icon for Nacreous rankNacreous
Oct 01, 2013

Same datagroup. Slightly different iRule ([URI::query] does not work as expected in v10): 

when CLIENT_ACCEPTED {
    set default_pool [LB::server pool]
}
when HTTP_REQUEST {
    if {[class match -value [string tolower [URI::query [HTTP::uri] s]] eq dg_name_node] ne ""} {
        node [class match -value [string tolower [URI::query [HTTP::uri] s]] eq dg_name_node] 80
    }
}
when LB_FAILED {
    log local0. "Selected server [LB::server] did not respond. Re-selecting node from $default_pool"
    pool $default_pool
    LB::reselect
}