8adde2fcb8
The parameters to interpolate in the log message were being passed directly, instead of in a dict, so they were never actually merged into the message. While fixing this, we can also avoid manually including the exception in the message and leave it upto python logging by simply setting exc_info=True. Change-Id: Ib6adb52fb331ed148a6c250fd008e9c117f4cf68
135 lines
4.5 KiB
Python
135 lines
4.5 KiB
Python
# 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 oslo_log import log as logging
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from stevedore import extension
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import os_vif.exception
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import os_vif.i18n
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import os_vif.objects
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_LE = os_vif.i18n._LE
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_LI = os_vif.i18n._LI
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_EXT_MANAGER = None
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LOG = logging.getLogger(__name__)
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def initialize(reset=False):
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"""
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Loads all os_vif plugins and initializes them with a dictionary of
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configuration options. These configuration options are passed as-is
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to the individual VIF plugins that are loaded via stevedore.
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:param reset: Recreate and load the VIF plugin extensions.
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"""
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global _EXT_MANAGER
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if _EXT_MANAGER is None:
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os_vif.objects.register_all()
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if reset or (_EXT_MANAGER is None):
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_EXT_MANAGER = extension.ExtensionManager(namespace='os_vif',
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invoke_on_load=False)
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for plugin_name in _EXT_MANAGER.names():
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cls = _EXT_MANAGER[plugin_name].plugin
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obj = cls.load(plugin_name)
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LOG.info("Loaded VIF plugin class '%s' with name '%s'",
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cls, plugin_name)
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_EXT_MANAGER[plugin_name].obj = obj
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def plug(vif, instance_info):
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"""
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Given a model of a VIF, perform operations to plug the VIF properly.
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:param vif: `os_vif.objects.VIF` object.
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:param instance_info: `os_vif.objects.InstanceInfo` object.
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:raises `exception.LibraryNotInitialized` if the user of the library
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did not call os_vif.initialize(**config) before trying to
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plug a VIF.
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:raises `exception.NoMatchingPlugin` if there is no plugin for the
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type of VIF supplied.
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:raises `exception.PlugException` if anything fails during unplug
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operations.
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"""
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if _EXT_MANAGER is None:
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raise os_vif.exception.LibraryNotInitialized()
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plugin_name = vif.plugin
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try:
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plugin = _EXT_MANAGER[plugin_name].obj
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except KeyError:
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raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)
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try:
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LOG.debug("Plugging vif %s", vif)
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plugin.plug(vif, instance_info)
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LOG.info(_LI("Successfully plugged vif %s"), vif)
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except Exception as err:
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LOG.error(_LE("Failed to plug vif %(vif)s"),
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{"vif": vif}, exc_info=True)
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raise os_vif.exception.PlugException(vif=vif, err=err)
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def unplug(vif, instance_info):
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"""
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Given a model of a VIF, perform operations to unplug the VIF properly.
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:param vif: `os_vif.objects.VIF` object.
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:param instance_info: `os_vif.objects.InstanceInfo` object.
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:raises `exception.LibraryNotInitialized` if the user of the library
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did not call os_vif.initialize(**config) before trying to
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plug a VIF.
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:raises `exception.NoMatchingPlugin` if there is no plugin for the
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type of VIF supplied.
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:raises `exception.UnplugException` if anything fails during unplug
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operations.
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"""
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if _EXT_MANAGER is None:
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raise os_vif.exception.LibraryNotInitialized()
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plugin_name = vif.plugin
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try:
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plugin = _EXT_MANAGER[plugin_name].obj
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except KeyError:
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raise os_vif.exception.NoMatchingPlugin(plugin_name=plugin_name)
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try:
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LOG.debug("Unplugging vif %s", vif)
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plugin.unplug(vif, instance_info)
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LOG.info(_LI("Successfully unplugged vif %s"), vif)
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except Exception as err:
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LOG.error(_LE("Failed to unplug vif %(vif)s"),
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{"vif": vif}, exc_info=True)
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raise os_vif.exception.UnplugException(vif=vif, err=err)
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def host_info():
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"""
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Get information about the host platform configuration to be
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provided to the network manager. This will include information
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about what plugins are installed in the host
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:returns: a os_vif.host_info.HostInfo class instance
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"""
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if _EXT_MANAGER is None:
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raise os_vif.exception.LibraryNotInitialized()
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plugins = [
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_EXT_MANAGER[name].obj.describe()
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for name in _EXT_MANAGER.names()
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]
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return os_vif.objects.host_info.HostInfo(plugin_info=plugins)
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