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StephanManthey's avatar
StephanManthey
Icon for Nacreous rankNacreous
Sep 30, 2013

First part sound similar to a task on a forward proxy.

So after you figured out the cloud server´s name by parsing the HTTP payload in the context of HTTP_REQUEST you need to resolve the name: 

NAME::lookup $cloud_server

After the name resolution the NAME_RESOLVED will be triggered and after some sanity check you can pick the node, i.e.:

when NAME_RESOLVED {
    set host_ip [NAME::response]
    if { $host_ip ne "" } {
          use only the first A-record from a list of multiple returned IP-addresses
        set host_ip [getfield $host_ip " " 1]
        node $host_ip $port
    }
}