258 lines
9.4 KiB
Python
258 lines
9.4 KiB
Python
# Copyright 2015 Huawei Technologies Co.,LTD.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import decorator
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from oslo_config import cfg
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import pecan
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from magnum.api import utils as api_utils
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from magnum.common import exception
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from magnum.common import utils
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from magnum.i18n import _
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from magnum import objects
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baymodel_opts = [
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cfg.ListOpt('kubernetes_allowed_network_drivers',
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default=['all'],
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help=_("Allowed network drivers for kubernetes baymodels. "
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"Use 'all' keyword to allow all drivers supported "
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"for kubernetes baymodels. Supported network drivers "
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"include flannel.")),
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cfg.StrOpt('kubernetes_default_network_driver',
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default='flannel',
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help=_("Default network driver for kubernetes baymodels.")),
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cfg.ListOpt('swarm_allowed_network_drivers',
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default=['all'],
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help=_("Allowed network drivers for docker swarm baymodels. "
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"Use 'all' keyword to allow all drivers supported "
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"for swarm baymodels. Supported network drivers "
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"include docker and flannel.")),
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cfg.StrOpt('swarm_default_network_driver',
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default='docker',
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help=_("Default network driver for docker swarm baymodels.")),
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cfg.ListOpt('mesos_allowed_network_drivers',
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default=['all'],
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help=_("Allowed network drivers for mesos baymodels. "
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"Use 'all' keyword to allow all drivers supported "
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"for mesos baymodels. Supported network drivers "
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"include docker.")),
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cfg.StrOpt('mesos_default_network_driver',
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default='docker',
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help=_("Default network driver for mesos baymodels.")),
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]
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cfg.CONF.register_opts(baymodel_opts, group='baymodel')
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bay_update_allowed_properties = set(['node_count'])
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def enforce_bay_types(*bay_types):
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"""Enforce that bay_type is in supported list."""
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@decorator.decorator
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def wrapper(func, *args, **kwargs):
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# Note(eliqiao): This decorator has some assumptions
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# args[1] should be an APIBase instance or
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# args[2] should be a bay_ident
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obj = args[1]
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if hasattr(obj, 'bay_uuid'):
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bay = objects.Bay.get_by_uuid(pecan.request.context, obj.bay_uuid)
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else:
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bay_ident = args[2]
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if utils.is_uuid_like(bay_ident):
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bay = objects.Bay.get_by_uuid(pecan.request.context, bay_ident)
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else:
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bay = objects.Bay.get_by_name(pecan.request.context, bay_ident)
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if bay.baymodel.coe not in bay_types:
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raise exception.InvalidParameterValue(_(
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'Cannot fulfill request with a %(bay_type)s bay, '
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'expecting a %(supported_bay_types)s bay.') %
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{'bay_type': bay.baymodel.coe,
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'supported_bay_types': '/'.join(bay_types)})
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return func(*args, **kwargs)
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return wrapper
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def enforce_network_driver_types_create():
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@decorator.decorator
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def wrapper(func, *args, **kwargs):
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baymodel = args[1]
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_enforce_network_driver_types(baymodel)
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return func(*args, **kwargs)
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return wrapper
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def enforce_network_driver_types_update():
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@decorator.decorator
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def wrapper(func, *args, **kwargs):
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baymodel_ident = args[1]
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patch = args[2]
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baymodel = api_utils.get_resource('BayModel', baymodel_ident)
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try:
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baymodel_dict = api_utils.apply_jsonpatch(baymodel.as_dict(),
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patch)
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except api_utils.JSONPATCH_EXCEPTIONS as e:
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raise exception.PatchError(patch=patch, reason=e)
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baymodel = objects.BayModel(pecan.request.context, **baymodel_dict)
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_enforce_network_driver_types(baymodel)
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return func(*args, **kwargs)
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return wrapper
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def _enforce_network_driver_types(baymodel):
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validator = Validator.get_coe_validator(baymodel.coe)
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if not baymodel.network_driver:
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baymodel.network_driver = validator.default_network_driver
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validator.validate_network_driver(baymodel.network_driver)
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def enforce_volume_driver_types_create():
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@decorator.decorator
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def wrapper(func, *args, **kwargs):
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baymodel = args[1]
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_enforce_volume_driver_types(baymodel.as_dict())
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return func(*args, **kwargs)
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return wrapper
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def enforce_volume_driver_types_update():
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@decorator.decorator
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def wrapper(func, *args, **kwargs):
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baymodel_ident = args[1]
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patch = args[2]
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baymodel = api_utils.get_resource('BayModel', baymodel_ident)
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try:
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baymodel_dict = api_utils.apply_jsonpatch(baymodel.as_dict(),
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patch)
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except api_utils.JSONPATCH_EXCEPTIONS as e:
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raise exception.PatchError(patch=patch, reason=e)
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_enforce_volume_driver_types(baymodel_dict)
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return func(*args, **kwargs)
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return wrapper
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def _enforce_volume_driver_types(baymodel):
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validator = Validator.get_coe_validator(baymodel['coe'])
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if not baymodel.get('volume_driver'):
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return
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validator.validate_volume_driver(baymodel['volume_driver'])
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def validate_bay_properties(delta):
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update_disallowed_properties = delta - bay_update_allowed_properties
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if update_disallowed_properties:
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err = (_("cannot change bay property(ies) %s.") %
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", ".join(update_disallowed_properties))
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raise exception.InvalidParameterValue(err=err)
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class Validator(object):
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validators = {}
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@classmethod
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def get_coe_validator(cls, coe):
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if not cls.validators:
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cls.validators = {
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'kubernetes': K8sValidator(),
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'swarm': SwarmValidator(),
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'mesos': MesosValidator(),
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}
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if coe in cls.validators:
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return cls.validators[coe]
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else:
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raise exception.InvalidParameterValue(
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_('Requested COE type %s is not supported.') % coe)
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@classmethod
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def validate_network_driver(cls, driver):
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cls._validate_network_driver_supported(driver)
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cls._validate_network_driver_allowed(driver)
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@classmethod
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def _validate_network_driver_supported(cls, driver):
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"""Confirm that driver is supported by Magnum for this COE."""
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if driver not in cls.supported_network_drivers:
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raise exception.InvalidParameterValue(_(
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'Network driver type %(driver)s is not supported, '
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'expecting a %(supported_drivers)s network driver.') % {
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'driver': driver,
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'supported_drivers': '/'.join(
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cls.supported_network_drivers + ['unspecified'])})
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@classmethod
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def _validate_network_driver_allowed(cls, driver):
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"""Confirm that driver is allowed via configuration for this COE."""
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if ('all' not in cls.allowed_network_drivers and
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driver not in cls.allowed_network_drivers):
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raise exception.InvalidParameterValue(_(
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'Network driver type %(driver)s is not allowed, '
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'expecting a %(allowed_drivers)s network driver. ') % {
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'driver': driver,
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'allowed_drivers': '/'.join(
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cls.allowed_network_drivers + ['unspecified'])})
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@classmethod
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def validate_volume_driver(cls, driver):
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cls._validate_volume_driver_supported(driver)
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@classmethod
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def _validate_volume_driver_supported(cls, driver):
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"""Confirm that volume driver is supported by Magnum for this COE."""
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if driver not in cls.supported_volume_driver:
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raise exception.InvalidParameterValue(_(
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'Volume driver type %(driver)s is not supported, '
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'expecting a %(supported_volume_driver)s volume driver.') % {
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'driver': driver,
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'supported_volume_driver': '/'.join(
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cls.supported_volume_driver + ['unspecified'])})
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class K8sValidator(Validator):
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supported_network_drivers = ['flannel']
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allowed_network_drivers = (
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cfg.CONF.baymodel.kubernetes_allowed_network_drivers)
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default_network_driver = (
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cfg.CONF.baymodel.kubernetes_default_network_driver)
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supported_volume_driver = ['cinder']
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class SwarmValidator(Validator):
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supported_network_drivers = ['docker', 'flannel']
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allowed_network_drivers = cfg.CONF.baymodel.swarm_allowed_network_drivers
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default_network_driver = cfg.CONF.baymodel.swarm_default_network_driver
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supported_volume_driver = ['rexray']
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class MesosValidator(Validator):
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supported_network_drivers = ['docker']
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allowed_network_drivers = cfg.CONF.baymodel.mesos_allowed_network_drivers
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default_network_driver = cfg.CONF.baymodel.mesos_default_network_driver
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supported_volume_driver = ['rexray']
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