text: # Copyright 2016, A10 Networks
  #
  #    Licensed under the Apache License, Version 2.0 (the "License"); you may
  #    not use this file except in compliance with the License. You may obtain
  #    a copy of the License at
  #
  #         http://www.apache.org/licenses/LICENSE-2.0
  #
  #    Unless required by applicable law or agreed to in writing, software
  #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  #    License for the specific language governing permissions and limitations
  #    under the License.
  
  import logging
  
  from acos_client import errors as acos_errors
  
  LOG = logging.getLogger(__name__)
  
  
  def initialize_licensing(vth_cfg, device_cfg, client):
  
      licensing = vth_cfg.get('license_manager')
      if licensing is not None:
          client.license_manager.paygo(
              llp_hosts=map(lambda host: host['ip'], licensing["hosts"]),
              sn=licensing["serial"],
              instance_name=device_cfg.get('name'),
              use_mgmt_port=licensing["use-mgmt-port"],
              bandwidth_base=licensing["bandwidth-base"],
              interval=licensing["interval"]
          )
  
  
  def initialize_interfaces(vth_cfg, device_cfg, client):
  
      networks = vth_cfg.get("vthunder_data_networks", [])
      for x in range(1, len(networks) + 1):
          # Statically coded until we have devices that correctly configure
          # data-plane interfaces from dhcp
          client.interface.ethernet.update(x, dhcp=True, enable=True)
  
  
  def initialize_dns(vth_cfg, device_cfg, client):
      dns = vth_cfg.get('dns_resolver')
  
      if dns is not None:
          client.dns.set(**dns)
  
  
  def initialize_sflow(vth_cfg, device_cfg, client):
  
      collector = vth_cfg.get('sflow_collector')
      if collector is None:
          return
  
      try:
          client.sflow.collector.ip.create(collector['host'], collector['port'])
      except acos_errors.Exists:
          pass
  
      try:
          client.sflow.polling.create(http_counter=1)
      except acos_errors.Exists:
          pass
  
      try:
          client.sflow.setting.create(None, None, None, 1)
      except acos_errors.Exists:
          pass
  
  
  def initialize_vthunder(a10_cfg, device_cfg, client):
      """Perform initialization of system-wide settings"""
  
      vth = a10_cfg.get_vthunder_config()
      initialize_interfaces(vth, device_cfg, client)
      initialize_dns(vth, device_cfg, client)
      initialize_licensing(vth, device_cfg, client)
      initialize_sflow(vth, device_cfg, client)
  