161 lines
6.2 KiB
Python
161 lines
6.2 KiB
Python
# Copyright [2015] Hewlett-Packard Development Company, L.P.
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# All Rights Reserved.
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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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import abc
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from oslo_config.cfg import NoSuchOptError
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from oslo_log import log as logging
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from oslo_utils import importutils
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import six
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from trove.cluster.models import DBCluster
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from trove.common import cfg
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from trove.common import exception
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from trove.common.i18n import _LI
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from trove.common import wsgi
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from trove.datastore import models as datastore_models
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from trove.extensions.common import models
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from trove.extensions.common import views
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from trove.instance.models import DBInstance
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LOG = logging.getLogger(__name__)
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import_class = importutils.import_class
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CONF = cfg.CONF
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@six.add_metaclass(abc.ABCMeta)
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class BaseDatastoreRootController(wsgi.Controller):
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"""Base class that defines the contract for root controllers."""
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@abc.abstractmethod
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def root_index(self, req, tenant_id, instance_id, is_cluster):
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pass
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@abc.abstractmethod
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def root_create(self, req, body, tenant_id, instance_id, is_cluster):
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pass
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@abc.abstractmethod
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def root_delete(self, req, tenant_id, instance_id, is_cluster):
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pass
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class DefaultRootController(BaseDatastoreRootController):
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def root_index(self, req, tenant_id, instance_id, is_cluster):
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"""Returns True if root is enabled; False otherwise."""
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if is_cluster:
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raise exception.ClusterOperationNotSupported(
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operation='show_root')
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LOG.info(_LI("Getting root enabled for instance '%s'.") % instance_id)
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LOG.info(_LI("req : '%s'\n\n") % req)
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context = req.environ[wsgi.CONTEXT_KEY]
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is_root_enabled = models.Root.load(context, instance_id)
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return wsgi.Result(views.RootEnabledView(is_root_enabled).data(), 200)
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def root_create(self, req, body, tenant_id, instance_id, is_cluster):
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if is_cluster:
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raise exception.ClusterOperationNotSupported(
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operation='enable_root')
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LOG.info(_LI("Enabling root for instance '%s'.") % instance_id)
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LOG.info(_LI("req : '%s'\n\n") % req)
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context = req.environ[wsgi.CONTEXT_KEY]
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user_name = context.user
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if body:
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password = body['password'] if 'password' in body else None
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else:
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password = None
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root = models.Root.create(context, instance_id,
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user_name, password)
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return wsgi.Result(views.RootCreatedView(root).data(), 200)
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def root_delete(self, req, tenant_id, instance_id, is_cluster):
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if is_cluster:
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raise exception.ClusterOperationNotSupported(
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operation='disable_root')
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LOG.info(_LI("Disabling root for instance '%s'.") % instance_id)
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LOG.info(_LI("req : '%s'\n\n") % req)
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context = req.environ[wsgi.CONTEXT_KEY]
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try:
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found_user = self._find_root_user(context, instance_id)
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except (ValueError, AttributeError) as e:
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raise exception.BadRequest(msg=str(e))
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if not found_user:
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raise exception.UserNotFound(uuid="root")
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models.Root.delete(context, instance_id)
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return wsgi.Result(None, 200)
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class RootController(wsgi.Controller):
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"""Controller for instance functionality."""
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def index(self, req, tenant_id, instance_id):
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"""Returns True if root is enabled; False otherwise."""
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datastore_manager, is_cluster = self._get_datastore(tenant_id,
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instance_id)
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root_controller = self.load_root_controller(datastore_manager)
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return root_controller.root_index(req, tenant_id, instance_id,
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is_cluster)
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def create(self, req, tenant_id, instance_id, body=None):
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"""Enable the root user for the db instance."""
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datastore_manager, is_cluster = self._get_datastore(tenant_id,
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instance_id)
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root_controller = self.load_root_controller(datastore_manager)
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if root_controller is not None:
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return root_controller.root_create(req, body, tenant_id,
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instance_id, is_cluster)
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else:
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raise NoSuchOptError
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def delete(self, req, tenant_id, instance_id):
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datastore_manager, is_cluster = self._get_datastore(tenant_id,
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instance_id)
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root_controller = self.load_root_controller(datastore_manager)
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if root_controller is not None:
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return root_controller.root_delete(req, tenant_id,
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instance_id, is_cluster)
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else:
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raise NoSuchOptError
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def _get_datastore(self, tenant_id, instance_or_cluster_id):
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"""
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Returns datastore manager and a boolean
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showing if instance_or_cluster_id is a cluster id
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"""
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args = {'id': instance_or_cluster_id, 'tenant_id': tenant_id}
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is_cluster = False
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try:
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db_info = DBInstance.find_by(**args)
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except exception.ModelNotFoundError:
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is_cluster = True
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db_info = DBCluster.find_by(**args)
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ds_version = (datastore_models.DatastoreVersion.
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load_by_uuid(db_info.datastore_version_id))
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ds_manager = ds_version.manager
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return (ds_manager, is_cluster)
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def load_root_controller(self, manager):
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try:
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clazz = CONF.get(manager).get('root_controller')
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LOG.debug("Loading Root Controller class %s." % clazz)
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root_controller = import_class(clazz)
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return root_controller()
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except NoSuchOptError:
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return None
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