623e76997d
Refactor all the services in such way that they support the new `get_network_details` method instead of the old `get_network_config` method for statically configuring network interfaces through the networkconfig plugin. Change-Id: Idb519935da0d3aee316ad9bc9451f74bc80b12ba
136 lines
5.0 KiB
Python
136 lines
5.0 KiB
Python
# Copyright 2012 Cloudbase Solutions Srl
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from cloudbaseinit import exception
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from cloudbaseinit.metadata.services import base as service_base
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from cloudbaseinit.openstack.common import log as logging
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from cloudbaseinit.osutils import factory as osutils_factory
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from cloudbaseinit.plugins import base as plugin_base
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LOG = logging.getLogger(__name__)
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# Mandatory network details are marked with True. And
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# if the key is a tuple, then at least one field must exists.
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NET_REQUIRE = {
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("name", "mac"): True,
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"address": True,
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"netmask": True,
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"broadcast": False, # currently not used
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"gateway": False,
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"dnsnameservers": False
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}
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def _preprocess_nics(network_details, network_adapters):
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"""Check NICs and fill missing data if possible."""
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# initial checks
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if not network_adapters:
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raise exception.CloudbaseInitException(
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"no network adapters available")
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# Sort VM adapters by name (assuming that those
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# from the context are in correct order).
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network_adapters = sorted(network_adapters, key=lambda arg: arg[0])
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_network_details = [] # store here processed data
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# check and update every NetworkDetails object
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ind = 0
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total = len(network_adapters)
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for nic in network_details:
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if not isinstance(nic, service_base.NetworkDetails):
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raise exception.CloudbaseInitException(
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"invalid NetworkDetails object {!r}"
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.format(type(nic))
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)
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# check requirements
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final_status = True
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for fields, status in NET_REQUIRE.items():
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if not status:
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continue # skip 'not required' entries
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if not isinstance(fields, tuple):
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fields = (fields,)
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final_status = any([getattr(nic, field) for field in fields])
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if not final_status:
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LOG.error("Incomplete NetworkDetails object %s", nic)
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break
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if final_status:
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# Complete hardware address if missing by selecting
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# the corresponding MAC in terms of naming, then ordering.
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if not nic.mac:
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mac = None
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# by name
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macs = [adapter[1] for adapter in network_adapters
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if adapter[0] == nic.name]
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mac = macs[0] if macs else None
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# or by order
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if not mac and ind < total:
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mac = network_adapters[ind][1]
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nic = service_base.NetworkDetails(
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nic.name,
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mac,
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nic.address,
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nic.netmask,
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nic.broadcast,
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nic.gateway,
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nic.dnsnameservers
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)
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_network_details.append(nic)
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ind += 1
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return _network_details
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class NetworkConfigPlugin(plugin_base.BasePlugin):
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def execute(self, service, shared_data):
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osutils = osutils_factory.get_os_utils()
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network_details = service.get_network_details()
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if not network_details:
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return (plugin_base.PLUGIN_EXECUTION_DONE, False)
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# check and save NICs by MAC
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network_adapters = osutils.get_network_adapters()
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network_details = _preprocess_nics(network_details,
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network_adapters)
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macnics = {}
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for nic in network_details:
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# assuming that the MAC address is unique
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macnics[nic.mac] = nic
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# try configuring all the available adapters
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adapter_macs = [pair[1] for pair in network_adapters]
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reboot_required = False
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configured = False
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for mac in adapter_macs:
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nic = macnics.pop(mac, None)
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if not nic:
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LOG.warn("Missing details for adapter %s", mac)
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continue
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LOG.info("Configuring network adapter %s", mac)
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reboot = osutils.set_static_network_config(
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mac,
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nic.address,
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nic.netmask,
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nic.broadcast,
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nic.gateway,
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nic.dnsnameservers
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)
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reboot_required = reboot or reboot_required
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configured = True
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for mac in macnics:
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LOG.warn("Details not used for adapter %s", mac)
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if not configured:
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LOG.error("No adapters were configured")
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return (plugin_base.PLUGIN_EXECUTION_DONE, reboot_required)
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