322 lines
13 KiB
Python
322 lines
13 KiB
Python
# Copyright 2011 OpenStack Foundation
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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 webob.exc
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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 import pagination
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from trove.common import utils
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from trove.common import wsgi
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from trove.extensions.mysql.common import populate_validated_databases
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from trove.extensions.mysql.common import populate_users
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from trove.instance import models, views
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from trove.datastore import models as datastore_models
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from trove.backup.models import Backup as backup_model
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from trove.backup import views as backup_views
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from trove.openstack.common import log as logging
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from trove.common.i18n import _
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from trove.common.i18n import _LI
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import trove.common.apischema as apischema
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CONF = cfg.CONF
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LOG = logging.getLogger(__name__)
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class InstanceController(wsgi.Controller):
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"""Controller for instance functionality."""
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schemas = apischema.instance.copy()
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@classmethod
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def get_action_schema(cls, body, action_schema):
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action_type = body.keys()[0]
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action_schema = action_schema.get(action_type, {})
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if action_type == 'resize':
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# volume or flavorRef
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resize_action = body[action_type].keys()[0]
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action_schema = action_schema.get(resize_action, {})
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return action_schema
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@classmethod
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def get_schema(cls, action, body):
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action_schema = super(InstanceController, cls).get_schema(action, body)
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if action == 'action':
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# resize or restart
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action_schema = cls.get_action_schema(body, action_schema)
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return action_schema
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def action(self, req, body, tenant_id, id):
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"""
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Handles requests that modify existing instances in some manner. Actions
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could include 'resize', 'restart', 'reset_password'
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:param req: http request object
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:param body: deserialized body of the request as a dict
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:param tenant_id: the tenant id for whom owns the instance
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:param id: ???
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"""
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LOG.debug("instance action req : '%s'\n\n", req)
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if not body:
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raise exception.BadRequest(_("Invalid request body."))
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context = req.environ[wsgi.CONTEXT_KEY]
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instance = models.Instance.load(context, id)
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_actions = {
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'restart': self._action_restart,
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'resize': self._action_resize,
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'reset_password': self._action_reset_password,
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}
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selected_action = None
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action_name = None
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for key in body:
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if key in _actions:
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selected_action = _actions[key]
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action_name = key
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LOG.info(_LI("Performing %(action_name)s action against "
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"instance %(instance_id)s for tenant '%(tenant_id)s'"),
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{'action_name': action_name, 'instance_id': id,
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'tenant_id': tenant_id})
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return selected_action(instance, body)
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def _action_restart(self, instance, body):
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instance.restart()
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return wsgi.Result(None, 202)
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def _action_resize(self, instance, body):
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"""
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Handles 2 cases
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1. resize volume
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body only contains {volume: {size: x}}
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2. resize instance
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body only contains {flavorRef: http.../2}
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If the body has both we will throw back an error.
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"""
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options = {
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'volume': self._action_resize_volume,
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'flavorRef': self._action_resize_flavor
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}
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selected_option = None
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args = None
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for key in options:
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if key in body['resize']:
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selected_option = options[key]
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args = body['resize'][key]
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break
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return selected_option(instance, args)
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def _action_resize_volume(self, instance, volume):
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instance.resize_volume(volume['size'])
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return wsgi.Result(None, 202)
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def _action_resize_flavor(self, instance, flavorRef):
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new_flavor_id = utils.get_id_from_href(flavorRef)
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instance.resize_flavor(new_flavor_id)
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return wsgi.Result(None, 202)
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def _action_reset_password(self, instance, body):
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raise webob.exc.HTTPNotImplemented()
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def index(self, req, tenant_id):
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"""Return all instances."""
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LOG.info(_LI("Listing database instances for tenant '%s'"), tenant_id)
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LOG.debug("req : '%s'\n\n", req)
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context = req.environ[wsgi.CONTEXT_KEY]
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clustered_q = req.GET.get('include_clustered', '').lower()
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include_clustered = clustered_q == 'true'
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servers, marker = models.Instances.load(context, include_clustered)
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view = views.InstancesView(servers, req=req)
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paged = pagination.SimplePaginatedDataView(req.url, 'instances', view,
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marker)
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return wsgi.Result(paged.data(), 200)
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def backups(self, req, tenant_id, id):
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"""Return all backups for the specified instance."""
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LOG.info(_LI("Listing backups for instance '%s'"),
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id)
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LOG.debug("req : '%s'\n\n", req)
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context = req.environ[wsgi.CONTEXT_KEY]
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backups, marker = backup_model.list_for_instance(context, id)
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view = backup_views.BackupViews(backups)
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paged = pagination.SimplePaginatedDataView(req.url, 'backups', view,
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marker)
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return wsgi.Result(paged.data(), 200)
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def show(self, req, tenant_id, id):
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"""Return a single instance."""
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LOG.info(_LI("Showing database instance '%(instance_id)s' for tenant "
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"'%(tenant_id)s'"),
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{'instance_id': id, 'tenant_id': tenant_id})
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LOG.debug("req : '%s'\n\n", req)
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context = req.environ[wsgi.CONTEXT_KEY]
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server = models.load_instance_with_guest(models.DetailInstance,
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context, id)
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return wsgi.Result(views.InstanceDetailView(server,
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req=req).data(), 200)
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def delete(self, req, tenant_id, id):
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"""Delete a single instance."""
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LOG.info(_LI("Deleting database instance '%(instance_id)s' for tenant "
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"'%(tenant_id)s'"),
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{'instance_id': id, 'tenant_id': tenant_id})
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LOG.debug("req : '%s'\n\n", req)
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# TODO(hub-cap): turn this into middleware
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context = req.environ[wsgi.CONTEXT_KEY]
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instance = models.load_any_instance(context, id)
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instance.delete()
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# TODO(cp16net): need to set the return code correctly
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return wsgi.Result(None, 202)
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def create(self, req, body, tenant_id):
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# TODO(hub-cap): turn this into middleware
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LOG.info(_LI("Creating a database instance for tenant '%s'"),
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tenant_id)
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LOG.debug(logging.mask_password("req : '%s'\n\n", req))
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LOG.debug(logging.mask_password("body : '%s'\n\n", body))
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context = req.environ[wsgi.CONTEXT_KEY]
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datastore_args = body['instance'].get('datastore', {})
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datastore, datastore_version = (
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datastore_models.get_datastore_version(**datastore_args))
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image_id = datastore_version.image_id
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name = body['instance']['name']
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flavor_ref = body['instance']['flavorRef']
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flavor_id = utils.get_id_from_href(flavor_ref)
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configuration = self._configuration_parse(context, body)
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databases = populate_validated_databases(
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body['instance'].get('databases', []))
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database_names = [database.get('_name', '') for database in databases]
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users = None
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try:
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users = populate_users(body['instance'].get('users', []),
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database_names)
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except ValueError as ve:
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raise exception.BadRequest(msg=ve)
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if 'volume' in body['instance']:
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volume_size = int(body['instance']['volume']['size'])
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else:
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volume_size = None
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if 'restorePoint' in body['instance']:
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backupRef = body['instance']['restorePoint']['backupRef']
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backup_id = utils.get_id_from_href(backupRef)
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else:
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backup_id = None
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availability_zone = body['instance'].get('availability_zone')
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nics = body['instance'].get('nics')
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slave_of_id = body['instance'].get('replica_of',
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# also check for older name
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body['instance'].get('slave_of'))
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instance = models.Instance.create(context, name, flavor_id,
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image_id, databases, users,
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datastore, datastore_version,
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volume_size, backup_id,
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availability_zone, nics,
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configuration, slave_of_id)
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view = views.InstanceDetailView(instance, req=req)
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return wsgi.Result(view.data(), 200)
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def _configuration_parse(self, context, body):
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if 'configuration' in body['instance']:
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configuration_ref = body['instance']['configuration']
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if configuration_ref:
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configuration_id = utils.get_id_from_href(configuration_ref)
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return configuration_id
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def update(self, req, id, body, tenant_id):
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"""Updates the instance to attach/detach configuration."""
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LOG.info(_LI("Updating database instance '%(instance_id)s' for tenant "
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"'%(tenant_id)s'"),
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{'instance_id': id, 'tenant_id': tenant_id})
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LOG.debug("req: %s", req)
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LOG.debug("body: %s", body)
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context = req.environ[wsgi.CONTEXT_KEY]
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instance = models.Instance.load(context, id)
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# If configuration is set, then we will update the instance to use the
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# new configuration. If configuration is empty, we want to disassociate
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# the instance from the configuration group and remove the active
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# overrides file.
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update_args = {}
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configuration_id = self._configuration_parse(context, body)
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if configuration_id:
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instance.assign_configuration(configuration_id)
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else:
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instance.unassign_configuration()
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update_args['configuration_id'] = configuration_id
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instance.update_db(**update_args)
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return wsgi.Result(None, 202)
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def edit(self, req, id, body, tenant_id):
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"""
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Updates the instance to set or unset one or more attributes.
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"""
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LOG.info(_LI("Editing instance for tenant id %s."), tenant_id)
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LOG.debug(logging.mask_password("req: %s"), req)
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LOG.debug(logging.mask_password("body: %s"), body)
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context = req.environ[wsgi.CONTEXT_KEY]
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instance = models.Instance.load(context, id)
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if 'slave_of' in body['instance']:
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LOG.debug("Detaching replica from source.")
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instance.detach_replica()
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# If configuration is set, then we will update the instance to
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# use the new configuration. If configuration is empty, we
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# want to disassociate the instance from the configuration
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# group and remove the active overrides file.
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# If instance name is set, then we will update the instance name.
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edit_args = {}
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if 'configuration' in body['instance']:
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configuration_id = self._configuration_parse(context, body)
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if configuration_id:
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instance.assign_configuration(configuration_id)
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else:
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instance.unassign_configuration()
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edit_args['configuration_id'] = configuration_id
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if 'name' in body['instance']:
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edit_args['name'] = body['instance']['name']
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if edit_args:
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instance.update_db(**edit_args)
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return wsgi.Result(None, 202)
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def configuration(self, req, tenant_id, id):
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"""
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Returns the default configuration template applied to the instance.
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"""
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LOG.info(_LI("Getting default configuration for instance %s"), id)
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context = req.environ[wsgi.CONTEXT_KEY]
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instance = models.Instance.load(context, id)
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LOG.debug("Server: %s", instance)
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config = instance.get_default_configuration_template()
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LOG.debug("Default config for instance %(instance_id)s is %(config)s",
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{'instance_id': id, 'config': config})
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return wsgi.Result(views.DefaultConfigurationView(
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config).data(), 200)
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