Forum Discussion

EBL_27513's avatar
EBL_27513
Icon for Nimbostratus rankNimbostratus
Apr 13, 2015

iRule - Is it possible to select a different pool and do an http redirect without infinite loop?

Hi all,   I'm a relative amateur when it comes to crafting iRules, so thought I'd come to the experts and plead for any suggestions you'd be kind enough to offer!   I've been asked to create an i...
application delivery
devops
iRules
LTM
maintenance page
cjunior's avatar
cjunior
Icon for Nacreous rankNacreous
Apr 13, 2015

Hi, you might be using an improper event for this purpose.

I made some changes and it might work.

Hope it helps you. [] 
  when HTTP_REQUEST {
    if { [active_members [LB::server pool]] < 1 } {
        if { [string tolower [URI::decode [HTTP::uri]]] starts_with "/ohrcc/pages/client" } {
            log local0. "iRule:client-maintenance - routing to maintenance pool"
            Use this
            use pool client-maint
            Or
            HTTP::respond 302 Location "https://client.accenture.com/test/maintenance-page.htm"
        }
        elseif { [string tolower [URI::decode [HTTP::uri]]] starts_with "/placeholder-check-for-future-maintenance-pages" } {
            log local0. "iRule:future-maintenance - routing to maintenance pool"
            use pool future-maint
        } else {
            log local0. "iRule:Lantmannen-maintenance - routing to normal pool"
            use pool normal-pool
        }
    }
}

when LB_FAILED {
    persist none
    LB::reselect
}