# File lib/openstack/compute/connection.rb, line 544
    def attach_floating_ip(opts={:server_id=>"", :ip_id => ""})
      check_extension("os-floating-ips")
      #first get the address:
      addr = get_floating_ip(opts[:ip_id]).ip
      data = JSON.generate({:addFloatingIp=>{:address=>addr}})
      @connection.req("POST", "/servers/#{opts[:server_id]}/action", {:data=>data})
      true
    end