def get_vapp_edge_public_ip(vAppId)
      # Check the network configuration section
      params = {
        'method' => :get,
        'command' => "/vApp/vapp-#{vAppId}/networkConfigSection"
      }

      response, headers = send_request(params)

      # FIXME: this will return nil if the vApp uses multiple vApp Networks
      # with Edge devices in natRouted/portForwarding mode.
      config = response.css('NetworkConfigSection/NetworkConfig/Configuration')

      fenceMode = config.css('/FenceMode').text
      natType = config.css('/Features/NatService/NatType').text

      raise InvalidStateError, "Invalid request because FenceMode must be set to natRouted." unless fenceMode == "natRouted"
      raise InvalidStateError, "Invalid request because NatType must be set to portForwarding." unless natType == "portForwarding"

      # Check the routerInfo configuration where the global external IP is defined
      edgeIp = config.css('/RouterInfo/ExternalIp')
      edgeIp = edgeIp.text unless edgeIp.nil?
    end
def get_vapp_edge_public_ip(vAppId)
      # Check the network configuration section
      params = {
        'method' => :get,
        'command' => "/vApp/vapp-#{vAppId}/networkConfigSection"
      }

      response, headers = send_request(params)

      # FIXME: this will return nil if the vApp uses multiple vApp Networks
      # with Edge devices in natRouted/portForwarding mode.
      config = response.css('NetworkConfigSection/NetworkConfig/Configuration')

      fenceMode = config.css('/FenceMode').text
      natType = config.css('/Features/NatService/NatType').text

      raise InvalidStateError, "Invalid request because FenceMode must be set to natRouted." unless fenceMode == "natRouted"
      raise InvalidStateError, "Invalid request because NatType must be set to portForwarding." unless natType == "portForwarding"

      # Check the routerInfo configuration where the global external IP is defined
      edgeIp = config.css('/RouterInfo/ExternalIp')
      edgeIp = edgeIp.text unless edgeIp.nil?
    end
get vApp edge public IP from the vApp ID
 Only works when:
 - vApp needs to be poweredOn
 - FenceMode is set to "natRouted"
 - NatType" is set to "portForwarding
 This will be required to know how to connect to VMs behind the Edge device.