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# Copyright [2015] Hewlett-Packard Development Company, L.P.
#
# 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.
from glanceclient import exc as glance_exceptions
from oslo_log import log as logging
from trove.backup import models as backup_model
from trove.common import apischema
from trove.common.auth import admin_context
from trove.common import clients
from trove.common import exception
from trove.common import utils
from trove.common import wsgi
from trove.configuration import models as config_model
from trove.datastore import models
from trove.extensions.mgmt.datastores import views
from trove.instance import models as instance_model
LOG = logging.getLogger(__name__)
class DatastoreVersionController(wsgi.Controller):
"""Controller for datastore version registration functionality."""
schemas = apischema.mgmt_datastore_version
@admin_context
def create(self, req, body, tenant_id):
"""Adds a new datastore version."""
context = req.environ[wsgi.CONTEXT_KEY]
datastore_name = body['version']['datastore_name']
version_name = body['version']['name']
manager = body['version']['datastore_manager']
image_id = body['version']['image']
packages = body['version']['packages']
if type(packages) is list:
packages = ','.join(packages)
active = body['version']['active']
default = body['version']['default']
LOG.info("Tenant: '%(tenant)s' is adding the datastore "
"version: '%(version)s' to datastore: '%(datastore)s'",
{'tenant': tenant_id, 'version': version_name,
'datastore': datastore_name})
client = clients.create_glance_client(context)
try:
client.images.get(image_id)
except glance_exceptions.HTTPNotFound:
raise exception.ImageNotFound(uuid=image_id)
try:
datastore = models.Datastore.load(datastore_name)
except exception.DatastoreNotFound:
# Create the datastore if datastore_name does not exists.
LOG.info("Creating datastore %s", datastore_name)
datastore = models.DBDatastore()
datastore.id = utils.generate_uuid()
datastore.name = datastore_name
datastore.save()
try:
models.DatastoreVersion.load(datastore, version_name)
raise exception.DatastoreVersionAlreadyExists(name=version_name)
except exception.DatastoreVersionNotFound:
models.update_datastore_version(datastore.name, version_name,
manager, image_id, packages,
active)
if default:
models.update_datastore(datastore.name, version_name)
return wsgi.Result(None, 202)
@admin_context
def index(self, req, tenant_id):
"""Lists all datastore-versions for given datastore."""
db_ds_versions = models.DatastoreVersions.load_all(only_active=False)
datastore_versions = [models.DatastoreVersion.load_by_uuid(
ds_version.id) for ds_version in db_ds_versions]
return wsgi.Result(
views.DatastoreVersionsView(datastore_versions).data(), 200)
@admin_context
def show(self, req, tenant_id, id):
"""Lists details of a datastore-version for given datastore."""
datastore_version = models.DatastoreVersion.load_by_uuid(id)
return wsgi.Result(
views.DatastoreVersionView(datastore_version).data(),
200)
@admin_context
def edit(self, req, body, tenant_id, id):
"""Updates the attributes of a datastore version."""
context = req.environ[wsgi.CONTEXT_KEY]
datastore_version = models.DatastoreVersion.load_by_uuid(id)
LOG.info("Tenant: '%(tenant)s' is updating the datastore "
"version: '%(version)s' for datastore: '%(datastore)s'",
{'tenant': tenant_id, 'version': datastore_version.name,
'datastore': datastore_version.datastore_name})
manager = body.get('datastore_manager', datastore_version.manager)
image_id = body.get('image', datastore_version.image_id)
active = body.get('active', datastore_version.active)
default = body.get('default', None)
packages = body.get('packages', datastore_version.packages)
if type(packages) is list:
packages = ','.join(packages)
client = clients.create_glance_client(context)
try:
client.images.get(image_id)
except glance_exceptions.HTTPNotFound:
raise exception.ImageNotFound(uuid=image_id)
models.update_datastore_version(datastore_version.datastore_name,
datastore_version.name,
manager, image_id, packages,
active)
if default:
models.update_datastore(datastore_version.datastore_name,
datastore_version.name)
elif (default is False and datastore_version.default is True):
models.update_datastore(datastore_version.datastore_name, None)
return wsgi.Result(None, 202)
@admin_context
def delete(self, req, tenant_id, id):
"""Remove an existing datastore version."""
instances = instance_model.DBInstance.find_all(
datastore_version_id=id, deleted=0).all()
if len(instances) > 0:
raise exception.DatastoreVersionsInUse(resource='instance')
backups = backup_model.DBBackup.find_all(
datastore_version_id=id, deleted=0).all()
if len(backups) > 0:
raise exception.DatastoreVersionsInUse(resource='backup')
configs = config_model.DBConfiguration.find_all(
datastore_version_id=id, deleted=0).all()
if len(configs) > 0:
raise exception.DatastoreVersionsInUse(resource='configuration')
datastore_version = models.DatastoreVersion.load_by_uuid(id)
datastore = models.Datastore.load(datastore_version.datastore_id)
LOG.info("Tenant: '%(tenant)s' is removing the datastore "
"version: '%(version)s' for datastore: '%(datastore)s'",
{'tenant': tenant_id, 'version': datastore_version.name,
'datastore': datastore.name})
if datastore.default_version_id == datastore_version.id:
models.update_datastore(datastore.name, None)
datastore_version.delete()
return wsgi.Result(None, 202)
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