2029 lines
88 KiB
Python
Executable File
2029 lines
88 KiB
Python
Executable File
# Copyright 2012 OpenStack Foundation
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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 os.path
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import time
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import traceback
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from cinderclient import exceptions as cinder_exceptions
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from eventlet import greenthread
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from eventlet.timeout import Timeout
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from novaclient import exceptions as nova_exceptions
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from oslo_log import log as logging
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from oslo_utils import netutils
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from swiftclient.client import ClientException
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from trove.backup import models as bkup_models
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from trove.backup.models import Backup
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from trove.backup.models import DBBackup
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from trove.backup.state import BackupState
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from trove.cluster.models import Cluster
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from trove.cluster.models import DBCluster
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from trove.cluster import tasks
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from trove.common import cfg
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from trove.common import crypto_utils as cu
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from trove.common import exception
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from trove.common.exception import BackupCreationError
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from trove.common.exception import GuestError
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from trove.common.exception import GuestTimeout
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from trove.common.exception import InvalidModelError
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from trove.common.exception import MalformedSecurityGroupRuleError
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from trove.common.exception import PollTimeOut
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from trove.common.exception import TroveError
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from trove.common.exception import VolumeCreationFailure
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from trove.common.i18n import _
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from trove.common import instance as rd_instance
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from trove.common.instance import ServiceStatuses
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from trove.common.notification import (
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DBaaSInstanceRestart,
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DBaaSInstanceUpgrade,
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EndNotification,
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StartNotification,
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TroveInstanceCreate,
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TroveInstanceModifyVolume,
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TroveInstanceModifyFlavor,
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TroveInstanceDelete)
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import trove.common.remote as remote
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from trove.common.remote import create_cinder_client
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from trove.common.remote import create_dns_client
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from trove.common.remote import create_guest_client
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from trove.common import server_group as srv_grp
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from trove.common.strategies.cluster import strategy
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from trove.common import template
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from trove.common import timeutils
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from trove.common import utils
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from trove.common.utils import try_recover
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from trove.extensions.mysql import models as mysql_models
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from trove.extensions.security_group.models import SecurityGroup
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from trove.extensions.security_group.models import SecurityGroupRule
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from trove.instance import models as inst_models
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from trove.instance.models import BuiltInstance
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from trove.instance.models import DBInstance
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from trove.instance.models import FreshInstance
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from trove.instance.models import Instance
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from trove.instance.models import InstanceServiceStatus
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from trove.instance.models import InstanceStatus
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from trove.instance.tasks import InstanceTasks
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from trove.module import models as module_models
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from trove.module import views as module_views
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from trove.quota.quota import run_with_quotas
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from trove import rpc
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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class NotifyMixin(object):
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"""Notification Mixin
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This adds the ability to send usage events to an Instance object.
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"""
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def _get_service_id(self, datastore_manager, id_map):
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if datastore_manager in id_map:
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datastore_manager_id = id_map[datastore_manager]
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else:
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datastore_manager_id = cfg.UNKNOWN_SERVICE_ID
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LOG.error("Datastore ID for Manager (%s) is not configured",
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datastore_manager)
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return datastore_manager_id
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def send_usage_event(self, event_type, **kwargs):
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event_type = 'trove.instance.%s' % event_type
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publisher_id = CONF.host
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# Grab the instance size from the kwargs or from the nova client
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instance_size = kwargs.pop('instance_size', None)
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flavor = self.nova_client.flavors.get(self.flavor_id)
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server = kwargs.pop('server', None)
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if server is None:
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server = self.nova_client.servers.get(self.server_id)
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az = getattr(server, 'OS-EXT-AZ:availability_zone', None)
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# Default payload
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created_time = timeutils.isotime(self.db_info.created)
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payload = {
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'availability_zone': az,
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'created_at': created_time,
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'name': self.name,
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'instance_id': self.id,
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'instance_name': self.name,
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'instance_size': instance_size or flavor.ram,
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'instance_type': flavor.name,
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'instance_type_id': flavor.id,
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'launched_at': created_time,
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'nova_instance_id': self.server_id,
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'region': CONF.region,
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'state_description': self.status,
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'state': self.status,
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'tenant_id': self.tenant_id,
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'user_id': self.context.user,
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}
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if CONF.get(self.datastore_version.manager).volume_support:
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payload.update({
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'volume_size': self.volume_size,
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'nova_volume_id': self.volume_id
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})
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payload['service_id'] = self._get_service_id(
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self.datastore_version.manager, CONF.notification_service_id)
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# Update payload with all other kwargs
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payload.update(kwargs)
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LOG.debug('Sending event: %(event_type)s, %(payload)s',
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{'event_type': event_type, 'payload': payload})
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notifier = rpc.get_notifier(
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service="taskmanager", publisher_id=publisher_id)
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notifier.info(self.context, event_type, payload)
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class ConfigurationMixin(object):
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"""Configuration Mixin
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Configuration related tasks for instances and resizes.
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"""
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def _render_config(self, flavor):
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config = template.SingleInstanceConfigTemplate(
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self.datastore_version, flavor, self.id)
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config.render()
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return config
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def _render_replica_source_config(self, flavor):
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config = template.ReplicaSourceConfigTemplate(
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self.datastore_version, flavor, self.id)
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config.render()
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return config
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def _render_replica_config(self, flavor):
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config = template.ReplicaConfigTemplate(
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self.datastore_version, flavor, self.id)
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config.render()
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return config
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def _render_config_dict(self, flavor):
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config = template.SingleInstanceConfigTemplate(
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self.datastore_version, flavor, self.id)
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ret = config.render_dict()
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LOG.debug("the default template dict of mysqld section: %s", ret)
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return ret
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class ClusterTasks(Cluster):
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def update_statuses_on_failure(self, cluster_id, shard_id=None,
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status=None):
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if CONF.update_status_on_fail:
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if shard_id:
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db_instances = DBInstance.find_all(cluster_id=cluster_id,
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shard_id=shard_id).all()
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else:
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db_instances = DBInstance.find_all(
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cluster_id=cluster_id).all()
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for db_instance in db_instances:
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db_instance.set_task_status(
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status or InstanceTasks.BUILDING_ERROR_SERVER)
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db_instance.save()
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@classmethod
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def get_ip(cls, instance):
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return instance.get_visible_ip_addresses()[0]
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def _all_instances_ready(self, instance_ids, cluster_id,
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shard_id=None):
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"""Wait for all instances to get READY."""
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return self._all_instances_acquire_status(
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instance_ids, cluster_id, shard_id, ServiceStatuses.INSTANCE_READY,
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fast_fail_statuses=[ServiceStatuses.FAILED,
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ServiceStatuses.FAILED_TIMEOUT_GUESTAGENT])
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def _all_instances_shutdown(self, instance_ids, cluster_id,
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shard_id=None):
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"""Wait for all instances to go SHUTDOWN."""
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return self._all_instances_acquire_status(
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instance_ids, cluster_id, shard_id, ServiceStatuses.SHUTDOWN,
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fast_fail_statuses=[ServiceStatuses.FAILED,
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ServiceStatuses.FAILED_TIMEOUT_GUESTAGENT])
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def _all_instances_running(self, instance_ids, cluster_id, shard_id=None):
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"""Wait for all instances to become ACTIVE."""
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return self._all_instances_acquire_status(
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instance_ids, cluster_id, shard_id, ServiceStatuses.RUNNING,
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fast_fail_statuses=[ServiceStatuses.FAILED,
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ServiceStatuses.FAILED_TIMEOUT_GUESTAGENT])
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def _all_instances_acquire_status(
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self, instance_ids, cluster_id, shard_id, expected_status,
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fast_fail_statuses=None):
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def _is_fast_fail_status(status):
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return ((fast_fail_statuses is not None) and
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((status == fast_fail_statuses) or
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(status in fast_fail_statuses)))
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def _all_have_status(ids):
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for instance_id in ids:
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status = InstanceServiceStatus.find_by(
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instance_id=instance_id).get_status()
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task_status = DBInstance.find_by(
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id=instance_id).get_task_status()
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if (_is_fast_fail_status(status) or
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(task_status == InstanceTasks.BUILDING_ERROR_SERVER)):
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# if one has failed, no need to continue polling
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LOG.debug("Instance %(id)s has acquired a fast-fail "
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"status %(status)s and"
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" task_status %(task_status)s.",
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{'id': instance_id, 'status': status,
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'task_status': task_status})
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return True
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if status != expected_status:
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# if one is not in the expected state, continue polling
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LOG.debug("Instance %(id)s was %(status)s.",
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{'id': instance_id, 'status': status})
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return False
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return True
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def _instance_ids_with_failures(ids):
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LOG.debug("Checking for service failures on instances: %s", ids)
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failed_instance_ids = []
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for instance_id in ids:
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status = InstanceServiceStatus.find_by(
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instance_id=instance_id).get_status()
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task_status = DBInstance.find_by(
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id=instance_id).get_task_status()
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if (_is_fast_fail_status(status) or
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(task_status == InstanceTasks.BUILDING_ERROR_SERVER)):
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failed_instance_ids.append(instance_id)
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return failed_instance_ids
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LOG.debug("Polling until all instances acquire %(expected)s "
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"status: %(ids)s",
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{'expected': expected_status, 'ids': instance_ids})
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try:
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utils.poll_until(lambda: instance_ids,
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lambda ids: _all_have_status(ids),
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sleep_time=CONF.usage_sleep_time,
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time_out=CONF.usage_timeout)
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except PollTimeOut:
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LOG.exception("Timed out while waiting for all instances "
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"to become %s.", expected_status)
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self.update_statuses_on_failure(cluster_id, shard_id)
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return False
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failed_ids = _instance_ids_with_failures(instance_ids)
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if failed_ids:
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LOG.error("Some instances failed: %s", failed_ids)
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self.update_statuses_on_failure(cluster_id, shard_id)
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return False
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LOG.debug("All instances have acquired the expected status %s.",
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expected_status)
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return True
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def delete_cluster(self, context, cluster_id):
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LOG.debug("begin delete_cluster for id: %s", cluster_id)
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def all_instances_marked_deleted():
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db_instances = DBInstance.find_all(cluster_id=cluster_id,
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deleted=False).all()
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return len(db_instances) == 0
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try:
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utils.poll_until(all_instances_marked_deleted,
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sleep_time=2,
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time_out=CONF.cluster_delete_time_out)
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except PollTimeOut:
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LOG.error("timeout for instances to be marked as deleted.")
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return
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LOG.debug("setting cluster %s as deleted.", cluster_id)
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cluster = DBCluster.find_by(id=cluster_id)
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cluster.deleted = True
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cluster.deleted_at = timeutils.utcnow()
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cluster.task_status = tasks.ClusterTasks.NONE
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cluster.save()
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LOG.debug("end delete_cluster for id: %s", cluster_id)
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def rolling_restart_cluster(self, context, cluster_id, delay_sec=0):
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LOG.debug("Begin rolling cluster restart for id: %s", cluster_id)
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def _restart_cluster_instance(instance):
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LOG.debug("Restarting instance with id: %s", instance.id)
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context.notification = (
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DBaaSInstanceRestart(context, **request_info))
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with StartNotification(context, instance_id=instance.id):
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with EndNotification(context):
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instance.update_db(task_status=InstanceTasks.REBOOTING)
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instance.restart()
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timeout = Timeout(CONF.cluster_usage_timeout)
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cluster_notification = context.notification
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request_info = cluster_notification.serialize(context)
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try:
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node_db_inst = DBInstance.find_all(cluster_id=cluster_id,
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deleted=False).all()
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for index, db_inst in enumerate(node_db_inst):
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if index > 0:
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LOG.debug(
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"Waiting (%ds) for restarted nodes to rejoin the "
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"cluster before proceeding.", delay_sec)
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time.sleep(delay_sec)
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instance = BuiltInstanceTasks.load(context, db_inst.id)
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_restart_cluster_instance(instance)
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except Timeout as t:
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if t is not timeout:
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raise # not my timeout
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LOG.exception("Timeout for restarting cluster.")
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raise
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except Exception:
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LOG.exception("Error restarting cluster.", cluster_id)
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raise
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finally:
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context.notification = cluster_notification
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timeout.cancel()
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self.reset_task()
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LOG.debug("End rolling restart for id: %s.", cluster_id)
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def rolling_upgrade_cluster(self, context, cluster_id, datastore_version):
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LOG.debug("Begin rolling cluster upgrade for id: %s.", cluster_id)
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def _upgrade_cluster_instance(instance):
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LOG.debug("Upgrading instance with id: %s.", instance.id)
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context.notification = (
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DBaaSInstanceUpgrade(context, **request_info))
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with StartNotification(
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context, instance_id=instance.id,
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datastore_version_id=datastore_version.id):
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with EndNotification(context):
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instance.update_db(
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datastore_version_id=datastore_version.id,
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task_status=InstanceTasks.UPGRADING)
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instance.upgrade(datastore_version)
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timeout = Timeout(CONF.cluster_usage_timeout)
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cluster_notification = context.notification
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request_info = cluster_notification.serialize(context)
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try:
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for db_inst in DBInstance.find_all(cluster_id=cluster_id,
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deleted=False).all():
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instance = BuiltInstanceTasks.load(
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context, db_inst.id)
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_upgrade_cluster_instance(instance)
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self.reset_task()
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except Timeout as t:
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if t is not timeout:
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raise # not my timeout
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LOG.exception("Timeout for upgrading cluster.")
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self.update_statuses_on_failure(
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cluster_id, status=InstanceTasks.UPGRADING_ERROR)
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except Exception:
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LOG.exception("Error upgrading cluster %s.", cluster_id)
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self.update_statuses_on_failure(
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cluster_id, status=InstanceTasks.UPGRADING_ERROR)
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finally:
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context.notification = cluster_notification
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timeout.cancel()
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LOG.debug("End upgrade_cluster for id: %s.", cluster_id)
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class FreshInstanceTasks(FreshInstance, NotifyMixin, ConfigurationMixin):
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def _delete_resources(self, deleted_at):
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LOG.debug("Begin _delete_resources for instance %s", self.id)
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# If volume has "available" status, delete it manually.
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try:
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if self.volume_id:
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volume_client = create_cinder_client(self.context)
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volume = volume_client.volumes.get(self.volume_id)
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if volume.status == "available":
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LOG.info("Deleting volume %(v)s for instance: %(i)s.",
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{'v': self.volume_id, 'i': self.id})
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volume.delete()
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except Exception:
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LOG.exception("Error deleting volume of instance %(id)s.",
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{'id': self.db_info.id})
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LOG.debug("End _delete_resource for instance %s", self.id)
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def wait_for_instance(self, timeout, flavor):
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# Make sure the service becomes active before sending a usage
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# record to avoid over billing a customer for an instance that
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# fails to build properly.
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error_message = ''
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error_details = ''
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try:
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utils.poll_until(self._service_is_active,
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sleep_time=CONF.usage_sleep_time,
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time_out=timeout)
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LOG.info("Created instance %s successfully.", self.id)
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TroveInstanceCreate(instance=self,
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instance_size=flavor['ram']).notify()
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except PollTimeOut as ex:
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LOG.error("Failed to create instance %s. "
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"Timeout waiting for instance to become active. "
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"No usage create-event was sent.", self.id)
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self.update_statuses_on_time_out()
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error_message = "%s" % ex
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error_details = traceback.format_exc()
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except Exception as ex:
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LOG.exception("Failed to send usage create-event for "
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"instance %s.", self.id)
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error_message = "%s" % ex
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error_details = traceback.format_exc()
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finally:
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if error_message:
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inst_models.save_instance_fault(
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self.id, error_message, error_details,
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skip_delta=CONF.usage_sleep_time + 1)
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def create_instance(self, flavor, image_id, databases, users,
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datastore_manager, packages, volume_size,
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backup_id, availability_zone, root_password, nics,
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overrides, cluster_config, snapshot, volume_type,
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modules, scheduler_hints):
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# It is the caller's responsibility to ensure that
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# FreshInstanceTasks.wait_for_instance is called after
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# create_instance to ensure that the proper usage event gets sent
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LOG.info("Creating instance %s.", self.id)
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security_groups = None
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if CONF.trove_security_groups_support:
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try:
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security_groups = self._create_secgroup(datastore_manager)
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except Exception as e:
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log_fmt = "Error creating security group for instance: %s"
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exc_fmt = _("Error creating security group for instance: %s")
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err = inst_models.InstanceTasks.BUILDING_ERROR_SEC_GROUP
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self._log_and_raise(e, log_fmt, exc_fmt, self.id, err)
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else:
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|
LOG.debug("Successfully created security group for "
|
|
"instance: %s", self.id)
|
|
|
|
files = self.get_injected_files(datastore_manager)
|
|
cinder_volume_type = volume_type or CONF.cinder_volume_type
|
|
volume_info = self._create_server_volume(
|
|
flavor['id'],
|
|
image_id,
|
|
security_groups,
|
|
datastore_manager,
|
|
volume_size,
|
|
availability_zone,
|
|
nics,
|
|
files,
|
|
cinder_volume_type,
|
|
scheduler_hints)
|
|
|
|
config = self._render_config(flavor)
|
|
|
|
backup_info = None
|
|
if backup_id is not None:
|
|
backup = bkup_models.Backup.get_by_id(self.context, backup_id)
|
|
backup_info = {'id': backup_id,
|
|
'instance_id': backup.instance_id,
|
|
'location': backup.location,
|
|
'type': backup.backup_type,
|
|
'checksum': backup.checksum,
|
|
}
|
|
self._guest_prepare(flavor['ram'], volume_info,
|
|
packages, databases, users, backup_info,
|
|
config.config_contents, root_password,
|
|
overrides,
|
|
cluster_config, snapshot, modules)
|
|
|
|
if root_password:
|
|
self.report_root_enabled()
|
|
|
|
if not self.db_info.task_status.is_error:
|
|
self.reset_task_status()
|
|
|
|
# when DNS is supported, we attempt to add this after the
|
|
# instance is prepared. Otherwise, if DNS fails, instances
|
|
# end up in a poorer state and there's no tooling around
|
|
# re-sending the prepare call; retrying DNS is much easier.
|
|
try:
|
|
self._create_dns_entry()
|
|
except Exception as e:
|
|
log_fmt = "Error creating DNS entry for instance: %s"
|
|
exc_fmt = _("Error creating DNS entry for instance: %s")
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_DNS
|
|
self._log_and_raise(e, log_fmt, exc_fmt, self.id, err)
|
|
|
|
def attach_replication_slave(self, snapshot, flavor):
|
|
LOG.debug("Calling attach_replication_slave for %s.", self.id)
|
|
try:
|
|
replica_config = self._render_replica_config(flavor)
|
|
self.guest.attach_replication_slave(snapshot,
|
|
replica_config.config_contents)
|
|
except GuestError as e:
|
|
log_fmt = "Error attaching instance %s as replica."
|
|
exc_fmt = _("Error attaching instance %s as replica.")
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_REPLICA
|
|
self._log_and_raise(e, log_fmt, exc_fmt, self.id, err)
|
|
|
|
def get_replication_master_snapshot(self, context, slave_of_id, flavor,
|
|
backup_id=None, replica_number=1):
|
|
# First check to see if we need to take a backup
|
|
master = BuiltInstanceTasks.load(context, slave_of_id)
|
|
backup_required = master.backup_required_for_replication()
|
|
if backup_required:
|
|
# if we aren't passed in a backup id, look it up to possibly do
|
|
# an incremental backup, thus saving time
|
|
if not backup_id:
|
|
backup = Backup.get_last_completed(
|
|
context, slave_of_id, include_incremental=True)
|
|
if backup:
|
|
backup_id = backup.id
|
|
else:
|
|
LOG.debug('Skipping replication backup, as none is required.')
|
|
snapshot_info = {
|
|
'name': "Replication snapshot for %s" % self.id,
|
|
'description': "Backup image used to initialize "
|
|
"replication slave",
|
|
'instance_id': slave_of_id,
|
|
'parent_id': backup_id,
|
|
'tenant_id': self.tenant_id,
|
|
'state': BackupState.NEW,
|
|
'datastore_version_id': self.datastore_version.id,
|
|
'deleted': False,
|
|
'replica_number': replica_number,
|
|
}
|
|
|
|
replica_backup_id = None
|
|
if backup_required:
|
|
# Only do a backup if it's the first replica
|
|
if replica_number == 1:
|
|
try:
|
|
db_info = DBBackup.create(**snapshot_info)
|
|
replica_backup_id = db_info.id
|
|
except InvalidModelError:
|
|
log_fmt = ("Unable to create replication snapshot record "
|
|
"for instance: %s")
|
|
exc_fmt = _("Unable to create replication snapshot record "
|
|
"for instance: %s")
|
|
LOG.exception(log_fmt, self.id)
|
|
raise BackupCreationError(exc_fmt % self.id)
|
|
if backup_id:
|
|
# Look up the parent backup info or fail early if not
|
|
# found or if the user does not have access to the parent.
|
|
_parent = Backup.get_by_id(context, backup_id)
|
|
parent = {
|
|
'location': _parent.location,
|
|
'checksum': _parent.checksum,
|
|
}
|
|
snapshot_info.update({
|
|
'parent': parent,
|
|
})
|
|
else:
|
|
# we've been passed in the actual replica backup id,
|
|
# so just use it
|
|
replica_backup_id = backup_id
|
|
|
|
try:
|
|
snapshot_info.update({
|
|
'id': replica_backup_id,
|
|
'datastore': master.datastore.name,
|
|
'datastore_version': master.datastore_version.name,
|
|
})
|
|
snapshot = master.get_replication_snapshot(
|
|
snapshot_info, flavor=master.flavor_id)
|
|
snapshot.update({
|
|
'config': self._render_replica_config(flavor).config_contents
|
|
})
|
|
return snapshot
|
|
except Exception as e_create:
|
|
create_log_fmt = (
|
|
"Error creating replication snapshot from "
|
|
"instance %(source)s for new replica %(replica)s.")
|
|
create_exc_fmt = (
|
|
"Error creating replication snapshot from "
|
|
"instance %(source)s for new replica %(replica)s.")
|
|
create_fmt_content = {
|
|
'source': slave_of_id,
|
|
'replica': self.id
|
|
}
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_REPLICA
|
|
e_create_fault = create_log_fmt % create_fmt_content
|
|
e_create_stack = traceback.format_exc()
|
|
# we persist fault details to source instance
|
|
inst_models.save_instance_fault(slave_of_id, e_create_fault,
|
|
e_create_stack)
|
|
|
|
# if the delete of the 'bad' backup fails, it'll mask the
|
|
# create exception, so we trap it here
|
|
try:
|
|
# Only try to delete the backup if it's the first replica
|
|
if replica_number == 1 and backup_required:
|
|
Backup.delete(context, replica_backup_id)
|
|
except Exception as e_delete:
|
|
LOG.error(create_log_fmt, create_fmt_content)
|
|
# Make sure we log any unexpected errors from the create
|
|
if not isinstance(e_create, TroveError):
|
|
LOG.exception(e_create)
|
|
delete_log_fmt = (
|
|
"An error occurred while deleting a bad "
|
|
"replication snapshot from instance %(source)s.")
|
|
delete_exc_fmt = _(
|
|
"An error occurred while deleting a bad "
|
|
"replication snapshot from instance %(source)s.")
|
|
# we've already logged the create exception, so we'll raise
|
|
# the delete (otherwise the create will be logged twice)
|
|
self._log_and_raise(e_delete, delete_log_fmt, delete_exc_fmt,
|
|
{'source': slave_of_id}, err)
|
|
|
|
# the delete worked, so just log the original problem with create
|
|
self._log_and_raise(e_create, create_log_fmt, create_exc_fmt,
|
|
create_fmt_content, err)
|
|
|
|
def report_root_enabled(self):
|
|
mysql_models.RootHistory.create(self.context, self.id)
|
|
|
|
def update_statuses_on_time_out(self):
|
|
|
|
if CONF.update_status_on_fail:
|
|
# Updating service status
|
|
service = InstanceServiceStatus.find_by(instance_id=self.id)
|
|
service.set_status(ServiceStatuses.
|
|
FAILED_TIMEOUT_GUESTAGENT)
|
|
service.save()
|
|
LOG.error("Service status: %(status)s\n"
|
|
"Service error description: %(desc)s",
|
|
{'status': ServiceStatuses.
|
|
FAILED_TIMEOUT_GUESTAGENT.api_status,
|
|
'desc': ServiceStatuses.
|
|
FAILED_TIMEOUT_GUESTAGENT.description})
|
|
# Updating instance status
|
|
db_info = DBInstance.find_by(id=self.id, deleted=False)
|
|
db_info.set_task_status(InstanceTasks.
|
|
BUILDING_ERROR_TIMEOUT_GA)
|
|
db_info.save()
|
|
LOG.error("Trove instance status: %(action)s\n"
|
|
"Trove instance status description: %(text)s",
|
|
{'action': InstanceTasks.
|
|
BUILDING_ERROR_TIMEOUT_GA.action,
|
|
'text': InstanceTasks.
|
|
BUILDING_ERROR_TIMEOUT_GA.db_text})
|
|
|
|
def _service_is_active(self):
|
|
"""
|
|
Check that the database guest is active.
|
|
|
|
This function is meant to be called with poll_until to check that
|
|
the guest is alive before sending a 'create' message. This prevents
|
|
over billing a customer for an instance that they can never use.
|
|
|
|
Returns: boolean if the service is active.
|
|
Raises: TroveError if the service is in a failure state.
|
|
"""
|
|
service = InstanceServiceStatus.find_by(instance_id=self.id)
|
|
status = service.get_status()
|
|
if (status == rd_instance.ServiceStatuses.RUNNING or
|
|
status == rd_instance.ServiceStatuses.INSTANCE_READY):
|
|
return True
|
|
elif status not in [rd_instance.ServiceStatuses.NEW,
|
|
rd_instance.ServiceStatuses.BUILDING,
|
|
rd_instance.ServiceStatuses.UNKNOWN,
|
|
rd_instance.ServiceStatuses.DELETED]:
|
|
raise TroveError(_("Service not active, status: %s") % status)
|
|
|
|
c_id = self.db_info.compute_instance_id
|
|
server = self.nova_client.servers.get(c_id)
|
|
server_status = server.status
|
|
if server_status in [InstanceStatus.ERROR,
|
|
InstanceStatus.FAILED]:
|
|
server_fault_message = 'No fault found'
|
|
try:
|
|
server_fault_message = server.fault.get('message', 'Unknown')
|
|
except AttributeError:
|
|
pass
|
|
server_message = "\nServer error: %s" % server_fault_message
|
|
raise TroveError(_("Server not active, status: %(status)s"
|
|
"%(srv_msg)s") %
|
|
{'status': server_status,
|
|
'srv_msg': server_message})
|
|
return False
|
|
|
|
def _build_sg_rules_mapping(self, rule_ports):
|
|
final = []
|
|
cidr = CONF.trove_security_group_rule_cidr
|
|
for port_or_range in set(rule_ports):
|
|
from_, to_ = port_or_range[0], port_or_range[-1]
|
|
final.append({'cidr': cidr,
|
|
'from_': str(from_),
|
|
'to_': str(to_)})
|
|
return final
|
|
|
|
def _create_server_volume(self, flavor_id, image_id,
|
|
security_groups, datastore_manager,
|
|
volume_size, availability_zone,
|
|
nics, files, volume_type,
|
|
scheduler_hints):
|
|
LOG.debug("Begin _create_server_volume for id: %s", self.id)
|
|
server = None
|
|
volume_info = self._build_volume_info(datastore_manager,
|
|
volume_size=volume_size,
|
|
volume_type=volume_type)
|
|
block_device_mapping_v2 = volume_info['block_device']
|
|
try:
|
|
server = self._create_server(flavor_id, image_id, security_groups,
|
|
datastore_manager,
|
|
block_device_mapping_v2,
|
|
availability_zone, nics, files,
|
|
scheduler_hints)
|
|
server_id = server.id
|
|
# Save server ID.
|
|
self.update_db(compute_instance_id=server_id)
|
|
except Exception as e:
|
|
log_fmt = "Failed to create server for instance %s"
|
|
exc_fmt = _("Failed to create server for instance %s")
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_SERVER
|
|
self._log_and_raise(e, log_fmt, exc_fmt, self.id, err)
|
|
LOG.debug("End _create_server_volume for id: %s", self.id)
|
|
return volume_info
|
|
|
|
def _build_volume_info(self, datastore_manager, volume_size=None,
|
|
volume_type=None):
|
|
volume_info = None
|
|
volume_support = self.volume_support
|
|
device_path = self.device_path
|
|
mount_point = CONF.get(datastore_manager).mount_point
|
|
LOG.debug("trove volume support = %s", volume_support)
|
|
if volume_support:
|
|
try:
|
|
volume_info = self._create_volume(
|
|
volume_size, volume_type, datastore_manager)
|
|
except Exception as e:
|
|
log_fmt = "Failed to create volume for instance %s"
|
|
exc_fmt = _("Failed to create volume for instance %s")
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_VOLUME
|
|
self._log_and_raise(e, log_fmt, exc_fmt, self.id, err)
|
|
else:
|
|
LOG.debug("device_path = %(path)s\n"
|
|
"mount_point = %(point)s",
|
|
{
|
|
"path": device_path,
|
|
"point": mount_point
|
|
})
|
|
volume_info = {
|
|
'block_device': None,
|
|
'device_path': device_path,
|
|
'mount_point': mount_point,
|
|
}
|
|
return volume_info
|
|
|
|
# We remove all translations for messages logging execpet those for
|
|
# exception raising. And we cannot use _(xxxx) instead of _("xxxx")
|
|
# because of H701 PEP8 checking. So we pass log format , exception
|
|
# format, and format content in and do translations only if needed.
|
|
def _log_and_raise(self, exc, log_fmt, exc_fmt,
|
|
fmt_content, task_status):
|
|
LOG.error("%(message)s\n%(exc)s\n%(trace)s",
|
|
{"message": log_fmt % fmt_content,
|
|
"exc": exc,
|
|
"trace": traceback.format_exc()})
|
|
self.update_db(task_status=task_status)
|
|
exc_message = '\n%s' % exc if exc else ''
|
|
full_message = "%s%s" % (exc_fmt % fmt_content, exc_message)
|
|
raise TroveError(message=full_message)
|
|
|
|
def _create_volume(self, volume_size, volume_type, datastore_manager):
|
|
LOG.debug("Begin _create_volume for id: %s", self.id)
|
|
volume_client = create_cinder_client(self.context, self.region_name)
|
|
volume_desc = ("datastore volume for %s" % self.id)
|
|
volume_ref = volume_client.volumes.create(
|
|
volume_size, name="datastore-%s" % self.id,
|
|
description=volume_desc,
|
|
volume_type=volume_type)
|
|
|
|
# Record the volume ID in case something goes wrong.
|
|
self.update_db(volume_id=volume_ref.id)
|
|
|
|
utils.poll_until(
|
|
lambda: volume_client.volumes.get(volume_ref.id),
|
|
lambda v_ref: v_ref.status in ['available', 'error'],
|
|
sleep_time=2,
|
|
time_out=CONF.volume_time_out)
|
|
|
|
v_ref = volume_client.volumes.get(volume_ref.id)
|
|
if v_ref.status in ['error']:
|
|
raise VolumeCreationFailure()
|
|
LOG.debug("End _create_volume for id: %s", self.id)
|
|
return self._build_volume(v_ref, datastore_manager)
|
|
|
|
def _build_volume(self, v_ref, datastore_manager):
|
|
LOG.debug("Created volume %s", v_ref)
|
|
# TODO(zhaochao): from Liberty, Nova libvirt driver does not honor
|
|
# user-supplied device name anymore, so we may need find a new
|
|
# method to make sure the volume is correctly mounted inside the
|
|
# guest, please refer to the 'intermezzo-problem-with-device-names'
|
|
# section of Nova user referrence at:
|
|
# https://docs.openstack.org/nova/latest/user/block-device-mapping.html
|
|
bdm = CONF.block_device_mapping
|
|
|
|
# use Nova block_device_mapping_v2, referrence:
|
|
# https://developer.openstack.org/api-ref/compute/#create-server
|
|
# setting the delete_on_terminate instance to true=1
|
|
block_device_v2 = [{
|
|
"uuid": v_ref.id,
|
|
"source_type": "volume",
|
|
"destination_type": "volume",
|
|
"device_name": bdm,
|
|
"volume_size": v_ref.size,
|
|
"delete_on_termination": True
|
|
}]
|
|
created_volumes = [{'id': v_ref.id,
|
|
'size': v_ref.size}]
|
|
|
|
device_path = self.device_path
|
|
mount_point = CONF.get(datastore_manager).mount_point
|
|
|
|
LOG.debug("block_device = %(device)s\n"
|
|
"volume = %(volume)s\n"
|
|
"device_path = %(path)s\n"
|
|
"mount_point = %(point)s",
|
|
{"device": block_device_v2,
|
|
"volume": created_volumes,
|
|
"path": device_path,
|
|
"point": mount_point})
|
|
|
|
volume_info = {'block_device': block_device_v2,
|
|
'device_path': device_path,
|
|
'mount_point': mount_point}
|
|
return volume_info
|
|
|
|
def _prepare_userdata(self, datastore_manager):
|
|
userdata = None
|
|
cloudinit = os.path.join(CONF.get('cloudinit_location'),
|
|
"%s.cloudinit" % datastore_manager)
|
|
if os.path.isfile(cloudinit):
|
|
with open(cloudinit, "r") as f:
|
|
userdata = f.read()
|
|
return userdata
|
|
|
|
def _create_server(self, flavor_id, image_id, security_groups,
|
|
datastore_manager, block_device_mapping_v2,
|
|
availability_zone, nics, files={},
|
|
scheduler_hints=None):
|
|
userdata = self._prepare_userdata(datastore_manager)
|
|
name = self.hostname or self.name
|
|
bdmap_v2 = block_device_mapping_v2
|
|
config_drive = CONF.use_nova_server_config_drive
|
|
|
|
server = self.nova_client.servers.create(
|
|
name, image_id, flavor_id, files=files, userdata=userdata,
|
|
security_groups=security_groups, block_device_mapping_v2=bdmap_v2,
|
|
availability_zone=availability_zone, nics=nics,
|
|
config_drive=config_drive, scheduler_hints=scheduler_hints)
|
|
LOG.debug("Created new compute instance %(server_id)s "
|
|
"for instance %(id)s",
|
|
{'server_id': server.id, 'id': self.id})
|
|
return server
|
|
|
|
def _guest_prepare(self, flavor_ram, volume_info,
|
|
packages, databases, users, backup_info=None,
|
|
config_contents=None, root_password=None,
|
|
overrides=None, cluster_config=None, snapshot=None,
|
|
modules=None):
|
|
LOG.debug("Entering guest_prepare")
|
|
# Now wait for the response from the create to do additional work
|
|
self.guest.prepare(flavor_ram, packages, databases, users,
|
|
device_path=volume_info['device_path'],
|
|
mount_point=volume_info['mount_point'],
|
|
backup_info=backup_info,
|
|
config_contents=config_contents,
|
|
root_password=root_password,
|
|
overrides=overrides,
|
|
cluster_config=cluster_config,
|
|
snapshot=snapshot, modules=modules)
|
|
|
|
def _create_dns_entry(self):
|
|
dns_support = CONF.trove_dns_support
|
|
LOG.debug("trove dns support = %s", dns_support)
|
|
|
|
if dns_support:
|
|
LOG.debug("%(gt)s: Creating dns entry for instance: %(id)s",
|
|
{'gt': greenthread.getcurrent(), 'id': self.id})
|
|
dns_client = create_dns_client(self.context)
|
|
|
|
def get_server():
|
|
c_id = self.db_info.compute_instance_id
|
|
return self.nova_client.servers.get(c_id)
|
|
|
|
def ip_is_available(server):
|
|
LOG.debug("Polling for ip addresses: $%s ", server.addresses)
|
|
if server.addresses != {}:
|
|
return True
|
|
elif (server.addresses == {} and
|
|
server.status != InstanceStatus.ERROR):
|
|
return False
|
|
elif (server.addresses == {} and
|
|
server.status == InstanceStatus.ERROR):
|
|
LOG.error("Failed to create DNS entry for instance "
|
|
"%(instance)s. Server status was "
|
|
"%(status)s).",
|
|
{'instance': self.id, 'status': server.status})
|
|
raise TroveError(status=server.status)
|
|
|
|
utils.poll_until(get_server, ip_is_available,
|
|
sleep_time=1, time_out=CONF.dns_time_out)
|
|
server = self.nova_client.servers.get(
|
|
self.db_info.compute_instance_id)
|
|
self.db_info.addresses = server.addresses
|
|
LOG.debug("Creating dns entry...")
|
|
ip = self.dns_ip_address
|
|
if not ip:
|
|
raise TroveError(_("Failed to create DNS entry for instance "
|
|
"%s. No IP available.") % self.id)
|
|
dns_client.create_instance_entry(self.id, ip)
|
|
LOG.debug("Successfully created DNS entry for instance: %s",
|
|
self.id)
|
|
else:
|
|
LOG.debug("%(gt)s: DNS not enabled for instance: %(id)s",
|
|
{'gt': greenthread.getcurrent(), 'id': self.id})
|
|
|
|
def _create_secgroup(self, datastore_manager):
|
|
security_group = SecurityGroup.create_for_instance(
|
|
self.id, self.context, self.region_name)
|
|
tcp_ports = CONF.get(datastore_manager).tcp_ports
|
|
udp_ports = CONF.get(datastore_manager).udp_ports
|
|
icmp = CONF.get(datastore_manager).icmp
|
|
self._create_rules(security_group, tcp_ports, 'tcp')
|
|
self._create_rules(security_group, udp_ports, 'udp')
|
|
if icmp:
|
|
self._create_rules(security_group, None, 'icmp')
|
|
return [security_group["name"]]
|
|
|
|
def _create_rules(self, s_group, ports, protocol):
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_SEC_GROUP
|
|
err_msg = _("Failed to create security group rules for instance "
|
|
"%(instance_id)s: Invalid port format - "
|
|
"FromPort = %(from)s, ToPort = %(to)s")
|
|
|
|
def set_error_and_raise(port_or_range):
|
|
from_port, to_port = port_or_range
|
|
self.update_db(task_status=err)
|
|
msg = err_msg % {'instance_id': self.id, 'from': from_port,
|
|
'to': to_port}
|
|
raise MalformedSecurityGroupRuleError(message=msg)
|
|
|
|
cidr = CONF.trove_security_group_rule_cidr
|
|
|
|
if protocol == 'icmp':
|
|
SecurityGroupRule.create_sec_group_rule(
|
|
s_group, 'icmp', None, None,
|
|
cidr, self.context, self.region_name)
|
|
else:
|
|
for port_or_range in set(ports):
|
|
try:
|
|
from_, to_ = (None, None)
|
|
from_, to_ = port_or_range[0], port_or_range[-1]
|
|
SecurityGroupRule.create_sec_group_rule(
|
|
s_group, protocol, int(from_), int(to_),
|
|
cidr, self.context, self.region_name)
|
|
except (ValueError, TroveError):
|
|
set_error_and_raise([from_, to_])
|
|
|
|
|
|
class BuiltInstanceTasks(BuiltInstance, NotifyMixin, ConfigurationMixin):
|
|
"""
|
|
Performs the various asynchronous instance related tasks.
|
|
"""
|
|
|
|
def _delete_resources(self, deleted_at):
|
|
LOG.debug("Begin _delete_resources for instance %s", self.id)
|
|
server_id = self.db_info.compute_instance_id
|
|
old_server = self.nova_client.servers.get(server_id)
|
|
try:
|
|
# The server may have already been marked as 'SHUTDOWN'
|
|
# but check for 'ACTIVE' in case of any race condition
|
|
# We specifically don't want to attempt to stop db if
|
|
# the server is in 'ERROR' or 'FAILED" state, as it will
|
|
# result in a long timeout
|
|
if self.server_status_matches(['ACTIVE', 'SHUTDOWN'], server=self):
|
|
LOG.debug("Stopping datastore on instance %s before deleting "
|
|
"any resources.", self.id)
|
|
self.guest.stop_db()
|
|
except Exception:
|
|
LOG.exception("Error stopping the datastore before attempting "
|
|
"to delete instance id %s.", self.id)
|
|
try:
|
|
self.server.delete()
|
|
except Exception as ex:
|
|
LOG.exception("Error during delete compute server %s",
|
|
self.server.id)
|
|
try:
|
|
dns_support = CONF.trove_dns_support
|
|
LOG.debug("trove dns support = %s", dns_support)
|
|
if dns_support:
|
|
dns_api = create_dns_client(self.context)
|
|
dns_api.delete_instance_entry(instance_id=self.db_info.id)
|
|
except Exception as ex:
|
|
LOG.exception("Error during dns entry of instance %(id)s: "
|
|
"%(ex)s", {'id': self.db_info.id, 'ex': ex})
|
|
try:
|
|
srv_grp.ServerGroup.delete(self.context, self.server_group)
|
|
except Exception:
|
|
LOG.exception("Error during delete server group for %s",
|
|
self.id)
|
|
|
|
# Poll until the server is gone.
|
|
def server_is_finished():
|
|
try:
|
|
server = self.nova_client.servers.get(server_id)
|
|
if not self.server_status_matches(['SHUTDOWN', 'ACTIVE'],
|
|
server=server):
|
|
LOG.error("Server %(server_id)s entered ERROR status "
|
|
"when deleting instance %(instance_id)s!",
|
|
{'server_id': server.id, 'instance_id': self.id})
|
|
return False
|
|
except nova_exceptions.NotFound:
|
|
return True
|
|
|
|
try:
|
|
utils.poll_until(server_is_finished, sleep_time=2,
|
|
time_out=CONF.server_delete_time_out)
|
|
except PollTimeOut:
|
|
LOG.exception("Failed to delete instance %(instance_id)s: "
|
|
"Timeout deleting compute server %(server_id)s",
|
|
{'instance_id': self.id, 'server_id': server_id})
|
|
|
|
# If volume has been resized it must be manually removed in cinder
|
|
try:
|
|
if self.volume_id:
|
|
volume_client = create_cinder_client(self.context,
|
|
self.region_name)
|
|
volume = volume_client.volumes.get(self.volume_id)
|
|
if volume.status == "available":
|
|
LOG.info("Deleting volume %(v)s for instance: %(i)s.",
|
|
{'v': self.volume_id, 'i': self.id})
|
|
volume.delete()
|
|
except Exception:
|
|
LOG.exception("Error deleting volume of instance %(id)s.",
|
|
{'id': self.db_info.id})
|
|
|
|
TroveInstanceDelete(instance=self,
|
|
deleted_at=timeutils.isotime(deleted_at),
|
|
server=old_server).notify()
|
|
LOG.debug("End _delete_resources for instance %s", self.id)
|
|
|
|
def server_status_matches(self, expected_status, server=None):
|
|
if not server:
|
|
server = self.server
|
|
return server.status.upper() in (
|
|
status.upper() for status in expected_status)
|
|
|
|
def resize_volume(self, new_size):
|
|
LOG.info("Resizing volume for instance %(instance_id)s from "
|
|
"%(old_size)s GB to %(new_size)s GB.",
|
|
{'instance_id': self.id, 'old_size': self.volume_size,
|
|
'new_size': new_size})
|
|
action = ResizeVolumeAction(self, self.volume_size, new_size)
|
|
action.execute()
|
|
LOG.info("Resized volume for instance %s successfully.", self.id)
|
|
|
|
def resize_flavor(self, old_flavor, new_flavor):
|
|
LOG.info("Resizing instance %(instance_id)s from flavor "
|
|
"%(old_flavor)s to %(new_flavor)s.",
|
|
{'instance_id': self.id, 'old_flavor': old_flavor['id'],
|
|
'new_flavor': new_flavor['id']})
|
|
action = ResizeAction(self, old_flavor, new_flavor)
|
|
action.execute()
|
|
LOG.info("Resized instance %s successfully.", self.id)
|
|
|
|
def migrate(self, host):
|
|
LOG.info("Initiating migration to host %s.", host)
|
|
action = MigrateAction(self, host)
|
|
action.execute()
|
|
|
|
def create_backup(self, backup_info):
|
|
LOG.info("Initiating backup for instance %s.", self.id)
|
|
self.guest.create_backup(backup_info)
|
|
|
|
def backup_required_for_replication(self):
|
|
LOG.debug("Seeing if replication backup is required for instance %s.",
|
|
self.id)
|
|
return self.guest.backup_required_for_replication()
|
|
|
|
def get_replication_snapshot(self, snapshot_info, flavor):
|
|
|
|
def _get_replication_snapshot():
|
|
LOG.debug("Calling get_replication_snapshot on %s.", self.id)
|
|
try:
|
|
rep_source_config = self._render_replica_source_config(flavor)
|
|
result = self.guest.get_replication_snapshot(
|
|
snapshot_info, rep_source_config.config_contents)
|
|
LOG.debug("Got replication snapshot from guest successfully.")
|
|
return result
|
|
except Exception:
|
|
LOG.exception("Failed to get replication snapshot from %s.",
|
|
self.id)
|
|
raise
|
|
|
|
return run_with_quotas(self.context.tenant, {'backups': 1},
|
|
_get_replication_snapshot)
|
|
|
|
def detach_replica(self, master, for_failover=False):
|
|
LOG.debug("Calling detach_replica on %s", self.id)
|
|
try:
|
|
self.guest.detach_replica(for_failover)
|
|
self.update_db(slave_of_id=None)
|
|
self.slave_list = None
|
|
except (GuestError, GuestTimeout):
|
|
LOG.exception("Failed to detach replica %s.", self.id)
|
|
raise
|
|
finally:
|
|
if not for_failover:
|
|
self.reset_task_status()
|
|
|
|
def attach_replica(self, master):
|
|
LOG.debug("Calling attach_replica on %s", self.id)
|
|
try:
|
|
replica_info = master.guest.get_replica_context()
|
|
flavor = self.nova_client.flavors.get(self.flavor_id)
|
|
slave_config = self._render_replica_config(flavor).config_contents
|
|
self.guest.attach_replica(replica_info, slave_config)
|
|
self.update_db(slave_of_id=master.id)
|
|
self.slave_list = None
|
|
except (GuestError, GuestTimeout):
|
|
LOG.exception("Failed to attach replica %s.", self.id)
|
|
raise
|
|
|
|
def make_read_only(self, read_only):
|
|
LOG.debug("Calling make_read_only on %s", self.id)
|
|
self.guest.make_read_only(read_only)
|
|
|
|
def _get_floating_ips(self):
|
|
"""Returns floating ips as a dict indexed by the ip."""
|
|
floating_ips = {}
|
|
network_floating_ips = self.neutron_client.list_floatingips()
|
|
for ip in network_floating_ips.get('floatingips'):
|
|
floating_ips.update(
|
|
{ip.get('floating_ip_address'): ip.get('id')})
|
|
LOG.debug("In _get_floating_ips(), returning %s", floating_ips)
|
|
return floating_ips
|
|
|
|
def detach_public_ips(self):
|
|
LOG.debug("Begin detach_public_ips for instance %s", self.id)
|
|
removed_ips = []
|
|
floating_ips = self._get_floating_ips()
|
|
for ip in self.get_visible_ip_addresses():
|
|
if ip in floating_ips:
|
|
fip_id = floating_ips[ip]
|
|
self.neutron_client.update_floatingip(
|
|
fip_id, {'floatingip': {'port_id': None}})
|
|
removed_ips.append(fip_id)
|
|
return removed_ips
|
|
|
|
def attach_public_ips(self, ips):
|
|
LOG.debug("Begin attach_public_ips for instance %s", self.id)
|
|
server_id = self.db_info.compute_instance_id
|
|
|
|
# NOTE(zhaochao): in Nova's addFloatingIp, the new floating ip will
|
|
# always be associated with the first IPv4 fixed address of the Nova
|
|
# instance, we're doing the same thing here, after add_floating_ip is
|
|
# removed from novaclient.
|
|
server_ports = (self.neutron_client.list_ports(device_id=server_id)
|
|
.get('ports'))
|
|
fixed_address, port_id = next(
|
|
(fixed_ip['ip_address'], port['id'])
|
|
for port in server_ports
|
|
for fixed_ip in port.get('fixed_ips')
|
|
if netutils.is_valid_ipv4(fixed_ip['ip_address']))
|
|
|
|
for fip_id in ips:
|
|
self.neutron_client.update_floatingip(
|
|
fip_id, {'floatingip': {
|
|
'port_id': port_id,
|
|
'fixed_ip_address': fixed_address}})
|
|
|
|
def enable_as_master(self):
|
|
LOG.debug("Calling enable_as_master on %s", self.id)
|
|
flavor = self.nova_client.flavors.get(self.flavor_id)
|
|
replica_source_config = self._render_replica_source_config(flavor)
|
|
self.update_db(slave_of_id=None)
|
|
self.slave_list = None
|
|
self.guest.enable_as_master(replica_source_config.config_contents)
|
|
|
|
def get_last_txn(self):
|
|
LOG.debug("Calling get_last_txn on %s", self.id)
|
|
return self.guest.get_last_txn()
|
|
|
|
def get_latest_txn_id(self):
|
|
LOG.debug("Calling get_latest_txn_id on %s", self.id)
|
|
return self.guest.get_latest_txn_id()
|
|
|
|
def wait_for_txn(self, txn):
|
|
LOG.debug("Calling wait_for_txn on %s", self.id)
|
|
if txn:
|
|
self.guest.wait_for_txn(txn)
|
|
|
|
def cleanup_source_on_replica_detach(self, replica_info):
|
|
LOG.debug("Calling cleanup_source_on_replica_detach on %s", self.id)
|
|
self.guest.cleanup_source_on_replica_detach(replica_info)
|
|
|
|
def demote_replication_master(self):
|
|
LOG.debug("Calling demote_replication_master on %s", self.id)
|
|
self.guest.demote_replication_master()
|
|
|
|
def reboot(self):
|
|
try:
|
|
# Issue a guest stop db call to shutdown the db if running
|
|
LOG.debug("Stopping datastore on instance %s.", self.id)
|
|
try:
|
|
self.guest.stop_db()
|
|
except (exception.GuestError, exception.GuestTimeout) as e:
|
|
# Acceptable to be here if db was already in crashed state
|
|
# Also we check guest state before issuing reboot
|
|
LOG.debug(str(e))
|
|
|
|
self._refresh_datastore_status()
|
|
if not (self.datastore_status_matches(
|
|
rd_instance.ServiceStatuses.SHUTDOWN) or
|
|
self.datastore_status_matches(
|
|
rd_instance.ServiceStatuses.CRASHED)):
|
|
# We will bail if db did not get stopped or is blocked
|
|
LOG.error("Cannot reboot instance. DB status is %s.",
|
|
self.datastore_status.status)
|
|
return
|
|
LOG.debug("The guest service status is %s.",
|
|
self.datastore_status.status)
|
|
|
|
LOG.info("Rebooting instance %s.", self.id)
|
|
self.server.reboot()
|
|
# Poll nova until instance is active
|
|
reboot_time_out = CONF.reboot_time_out
|
|
|
|
def update_server_info():
|
|
self.refresh_compute_server_info()
|
|
return self.server_status_matches(['ACTIVE'])
|
|
|
|
utils.poll_until(
|
|
update_server_info,
|
|
sleep_time=2,
|
|
time_out=reboot_time_out)
|
|
|
|
# Set the status to PAUSED. The guest agent will reset the status
|
|
# when the reboot completes and MySQL is running.
|
|
self.set_datastore_status_to_paused()
|
|
LOG.info("Rebooted instance %s successfully.", self.id)
|
|
except Exception as e:
|
|
LOG.error("Failed to reboot instance %(id)s: %(e)s",
|
|
{'id': self.id, 'e': str(e)})
|
|
finally:
|
|
LOG.debug("Rebooting FINALLY %s", self.id)
|
|
self.reset_task_status()
|
|
|
|
def restart(self):
|
|
LOG.info("Initiating datastore restart on instance %s.", self.id)
|
|
try:
|
|
self.guest.restart()
|
|
except GuestError:
|
|
LOG.error("Failed to initiate datastore restart on instance "
|
|
"%s.", self.id)
|
|
finally:
|
|
self.reset_task_status()
|
|
|
|
def guest_log_list(self):
|
|
LOG.info("Retrieving guest log list for instance %s.", self.id)
|
|
try:
|
|
return self.guest.guest_log_list()
|
|
except GuestError:
|
|
LOG.error("Failed to retrieve guest log list for instance "
|
|
"%s.", self.id)
|
|
finally:
|
|
self.reset_task_status()
|
|
|
|
def guest_log_action(self, log_name, enable, disable, publish, discard):
|
|
LOG.info("Processing guest log for instance %s.", self.id)
|
|
try:
|
|
return self.guest.guest_log_action(log_name, enable, disable,
|
|
publish, discard)
|
|
except GuestError:
|
|
LOG.error("Failed to process guest log for instance %s.",
|
|
self.id)
|
|
finally:
|
|
self.reset_task_status()
|
|
|
|
def refresh_compute_server_info(self):
|
|
"""Refreshes the compute server field."""
|
|
server = self.nova_client.servers.get(self.server.id)
|
|
self.server = server
|
|
|
|
def _refresh_datastore_status(self):
|
|
"""
|
|
Gets the latest instance service status from datastore and updates
|
|
the reference on this BuiltInstanceTask reference
|
|
"""
|
|
self.datastore_status = InstanceServiceStatus.find_by(
|
|
instance_id=self.id)
|
|
|
|
def set_datastore_status_to_paused(self):
|
|
"""
|
|
Updates the InstanceServiceStatus for this BuiltInstance to PAUSED.
|
|
This does not change the reference for this BuiltInstanceTask
|
|
"""
|
|
datastore_status = InstanceServiceStatus.find_by(instance_id=self.id)
|
|
datastore_status.status = rd_instance.ServiceStatuses.PAUSED
|
|
datastore_status.save()
|
|
|
|
def upgrade(self, datastore_version):
|
|
LOG.debug("Upgrading instance %s to new datastore version %s",
|
|
self, datastore_version)
|
|
|
|
def server_finished_rebuilding():
|
|
self.refresh_compute_server_info()
|
|
return not self.server_status_matches(['REBUILD'])
|
|
|
|
try:
|
|
upgrade_info = self.guest.pre_upgrade()
|
|
|
|
if self.volume_id:
|
|
volume = self.volume_client.volumes.get(self.volume_id)
|
|
volume_device = self._fix_device_path(
|
|
volume.attachments[0]['device'])
|
|
if volume:
|
|
upgrade_info['device'] = volume_device
|
|
|
|
# BUG(1650518): Cleanup in the Pike release some instances
|
|
# that we will be upgrading will be pre secureserialier
|
|
# and will have no instance_key entries. If this is one of
|
|
# those instances, make a key. That will make it appear in
|
|
# the injected files that are generated next. From this
|
|
# point, and until the guest comes up, attempting to send
|
|
# messages to it will fail because the RPC framework will
|
|
# encrypt messages to a guest which potentially doesn't
|
|
# have the code to handle it.
|
|
if CONF.enable_secure_rpc_messaging and (
|
|
self.db_info.encrypted_key is None):
|
|
encrypted_key = cu.encode_data(cu.encrypt_data(
|
|
cu.generate_random_key(),
|
|
CONF.inst_rpc_key_encr_key))
|
|
self.update_db(encrypted_key=encrypted_key)
|
|
LOG.debug("Generated unique RPC encryption key for "
|
|
"instance = %(id)s, key = %(key)s",
|
|
{'id': self.id, 'key': encrypted_key})
|
|
|
|
injected_files = self.get_injected_files(
|
|
datastore_version.manager)
|
|
LOG.debug("Rebuilding instance %(instance)s with image %(image)s.",
|
|
{'instance': self, 'image': datastore_version.image_id})
|
|
self.server.rebuild(datastore_version.image_id,
|
|
files=injected_files)
|
|
utils.poll_until(
|
|
server_finished_rebuilding,
|
|
sleep_time=2, time_out=600)
|
|
if not self.server_status_matches(['ACTIVE']):
|
|
raise TroveError(_("Instance %(instance)s failed to "
|
|
"upgrade to %(datastore_version)s") %
|
|
{'instance': self,
|
|
'datastore_version': datastore_version})
|
|
|
|
self.guest.post_upgrade(upgrade_info)
|
|
|
|
self.reset_task_status()
|
|
|
|
except Exception as e:
|
|
LOG.exception(e)
|
|
err = inst_models.InstanceTasks.BUILDING_ERROR_SERVER
|
|
self.update_db(task_status=err)
|
|
raise e
|
|
|
|
# Some cinder drivers appear to return "vdb" instead of "/dev/vdb".
|
|
# We need to account for that.
|
|
def _fix_device_path(self, device):
|
|
if device.startswith("/dev"):
|
|
return device
|
|
else:
|
|
return "/dev/%s" % device
|
|
|
|
|
|
class BackupTasks(object):
|
|
@classmethod
|
|
def _parse_manifest(cls, manifest):
|
|
# manifest is in the format 'container/prefix'
|
|
# where prefix can be 'path' or 'lots/of/paths'
|
|
try:
|
|
container_index = manifest.index('/')
|
|
prefix_index = container_index + 1
|
|
except ValueError:
|
|
return None, None
|
|
container = manifest[:container_index]
|
|
prefix = manifest[prefix_index:]
|
|
return container, prefix
|
|
|
|
@classmethod
|
|
def delete_files_from_swift(cls, context, filename):
|
|
container = CONF.backup_swift_container
|
|
client = remote.create_swift_client(context)
|
|
obj = client.head_object(container, filename)
|
|
if 'x-static-large-object' in obj:
|
|
# Static large object
|
|
LOG.debug("Deleting large object file: %(cont)s/%(filename)s",
|
|
{'cont': container, 'filename': filename})
|
|
client.delete_object(container, filename,
|
|
query_string='multipart-manifest=delete')
|
|
else:
|
|
# Single object
|
|
LOG.debug("Deleting object file: %(cont)s/%(filename)s",
|
|
{'cont': container, 'filename': filename})
|
|
client.delete_object(container, filename)
|
|
|
|
@classmethod
|
|
def delete_backup(cls, context, backup_id):
|
|
"""Delete backup from swift."""
|
|
LOG.info("Deleting backup %s.", backup_id)
|
|
backup = bkup_models.Backup.get_by_id(context, backup_id)
|
|
try:
|
|
filename = backup.filename
|
|
if filename:
|
|
BackupTasks.delete_files_from_swift(context, filename)
|
|
except ValueError:
|
|
backup.delete()
|
|
except ClientException as e:
|
|
if e.http_status == 404:
|
|
# Backup already deleted in swift
|
|
backup.delete()
|
|
else:
|
|
LOG.exception("Error occurred when deleting from swift. "
|
|
"Details: %s", e)
|
|
backup.state = bkup_models.BackupState.DELETE_FAILED
|
|
backup.save()
|
|
raise TroveError(_("Failed to delete swift object for backup "
|
|
"%s.") % backup_id)
|
|
else:
|
|
backup.delete()
|
|
LOG.info("Deleted backup %s successfully.", backup_id)
|
|
|
|
|
|
class ModuleTasks(object):
|
|
|
|
@classmethod
|
|
def reapply_module(cls, context, module_id, md5, include_clustered,
|
|
batch_size, batch_delay, force):
|
|
"""Reapply module."""
|
|
LOG.info("Reapplying module %s.", module_id)
|
|
|
|
batch_size = batch_size or CONF.module_reapply_max_batch_size
|
|
batch_delay = batch_delay or CONF.module_reapply_min_batch_delay
|
|
# Don't let non-admin bypass the safeguards
|
|
if not context.is_admin:
|
|
batch_size = min(batch_size, CONF.module_reapply_max_batch_size)
|
|
batch_delay = max(batch_delay, CONF.module_reapply_min_batch_delay)
|
|
modules = module_models.Modules.load_by_ids(context, [module_id])
|
|
current_md5 = modules[0].md5
|
|
LOG.debug("MD5: %(md5)s Force: %(f)s.", {'md5': md5, 'f': force})
|
|
|
|
# Process all the instances
|
|
instance_modules = module_models.InstanceModules.load_all(
|
|
context, module_id=module_id, md5=md5)
|
|
total_count = instance_modules.count()
|
|
reapply_count = 0
|
|
skipped_count = 0
|
|
if instance_modules:
|
|
module_list = module_views.convert_modules_to_list(modules)
|
|
for instance_module in instance_modules:
|
|
instance_id = instance_module.instance_id
|
|
if (instance_module.md5 != current_md5 or force) and (
|
|
not md5 or md5 == instance_module.md5):
|
|
instance = BuiltInstanceTasks.load(context, instance_id,
|
|
needs_server=False)
|
|
if instance and (
|
|
include_clustered or not instance.cluster_id):
|
|
try:
|
|
module_models.Modules.validate(
|
|
modules, instance.datastore.id,
|
|
instance.datastore_version.id)
|
|
client = create_guest_client(context, instance_id)
|
|
client.module_apply(module_list)
|
|
Instance.add_instance_modules(
|
|
context, instance_id, modules)
|
|
reapply_count += 1
|
|
except exception.ModuleInvalid as ex:
|
|
LOG.info("Skipping: %s", ex)
|
|
skipped_count += 1
|
|
|
|
# Sleep if we've fired off too many in a row.
|
|
if (batch_size and
|
|
not reapply_count % batch_size and
|
|
(reapply_count + skipped_count) < total_count):
|
|
LOG.debug("Applied module to %(cnt)d of %(total)d "
|
|
"instances - sleeping for %(batch)ds",
|
|
{'cnt': reapply_count,
|
|
'total': total_count,
|
|
'batch': batch_delay})
|
|
time.sleep(batch_delay)
|
|
else:
|
|
LOG.debug("Instance '%s' not found or doesn't match "
|
|
"criteria, skipping reapply.", instance_id)
|
|
skipped_count += 1
|
|
else:
|
|
LOG.debug("Instance '%s' does not match "
|
|
"criteria, skipping reapply.", instance_id)
|
|
skipped_count += 1
|
|
LOG.info("Reapplied module to %(num)d instances "
|
|
"(skipped %(skip)d).",
|
|
{'num': reapply_count, 'skip': skipped_count})
|
|
|
|
|
|
class ResizeVolumeAction(object):
|
|
"""Performs volume resize action."""
|
|
|
|
def __init__(self, instance, old_size, new_size):
|
|
self.instance = instance
|
|
self.old_size = int(old_size)
|
|
self.new_size = int(new_size)
|
|
|
|
def get_mount_point(self):
|
|
mount_point = CONF.get(
|
|
self.instance.datastore_version.manager).mount_point
|
|
return mount_point
|
|
|
|
def get_device_path(self):
|
|
return self.instance.device_path
|
|
|
|
def _fail(self, orig_func):
|
|
LOG.exception("%(func)s encountered an error when "
|
|
"attempting to resize the volume for "
|
|
"instance %(id)s. Setting service "
|
|
"status to failed.", {'func': orig_func.__name__,
|
|
'id': self.instance.id})
|
|
service = InstanceServiceStatus.find_by(instance_id=self.instance.id)
|
|
service.set_status(ServiceStatuses.FAILED)
|
|
service.save()
|
|
|
|
def _recover_restart(self, orig_func):
|
|
LOG.exception("%(func)s encountered an error when attempting to "
|
|
"resize the volume for instance %(id)s. Trying to "
|
|
"recover by restarting the "
|
|
"guest.", {'func': orig_func.__name__,
|
|
'id': self.instance.id})
|
|
self.instance.restart()
|
|
|
|
def _recover_mount_restart(self, orig_func):
|
|
LOG.exception("%(func)s encountered an error when attempting to "
|
|
"resize the volume for instance %(id)s. Trying to "
|
|
"recover by mounting the volume and then restarting "
|
|
"the guest.", {'func': orig_func.__name__,
|
|
'id': self.instance.id})
|
|
self._mount_volume()
|
|
self.instance.restart()
|
|
|
|
def _recover_full(self, orig_func):
|
|
LOG.exception("%(func)s encountered an error when attempting to "
|
|
"resize the volume for instance %(id)s. Trying to "
|
|
"recover by attaching and"
|
|
" mounting the volume and then restarting the "
|
|
"guest.", {'func': orig_func.__name__,
|
|
'id': self.instance.id})
|
|
self._attach_volume()
|
|
self._mount_volume()
|
|
self.instance.restart()
|
|
|
|
def _stop_db(self):
|
|
LOG.debug("Instance %s calling stop_db.", self.instance.id)
|
|
self.instance.guest.stop_db()
|
|
|
|
@try_recover
|
|
def _unmount_volume(self):
|
|
LOG.debug("Unmounting the volume on instance %(id)s", {
|
|
'id': self.instance.id})
|
|
mount_point = self.get_mount_point()
|
|
device_path = self.get_device_path()
|
|
self.instance.guest.unmount_volume(device_path=device_path,
|
|
mount_point=mount_point)
|
|
LOG.debug("Successfully unmounted the volume %(vol_id)s for "
|
|
"instance %(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
@try_recover
|
|
def _detach_volume(self):
|
|
LOG.debug("Detach volume %(vol_id)s from instance %(id)s", {
|
|
'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
self.instance.nova_client.volumes.delete_server_volume(
|
|
self.instance.server.id, self.instance.volume_id)
|
|
|
|
def volume_available():
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
return volume.status == 'available'
|
|
utils.poll_until(volume_available,
|
|
sleep_time=2,
|
|
time_out=CONF.volume_time_out)
|
|
|
|
LOG.debug("Successfully detached volume %(vol_id)s from instance "
|
|
"%(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
@try_recover
|
|
def _attach_volume(self):
|
|
device_path = self.get_device_path()
|
|
LOG.debug("Attach volume %(vol_id)s to instance %(id)s at "
|
|
"%(dev)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id, 'dev': device_path})
|
|
self.instance.nova_client.volumes.create_server_volume(
|
|
self.instance.server.id, self.instance.volume_id, device_path)
|
|
|
|
def volume_in_use():
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
return volume.status == 'in-use'
|
|
utils.poll_until(volume_in_use,
|
|
sleep_time=2,
|
|
time_out=CONF.volume_time_out)
|
|
|
|
LOG.debug("Successfully attached volume %(vol_id)s to instance "
|
|
"%(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
@try_recover
|
|
def _resize_fs(self):
|
|
LOG.debug("Resizing the filesystem for instance %(id)s", {
|
|
'id': self.instance.id})
|
|
mount_point = self.get_mount_point()
|
|
device_path = self.get_device_path()
|
|
self.instance.guest.resize_fs(device_path=device_path,
|
|
mount_point=mount_point)
|
|
LOG.debug("Successfully resized volume %(vol_id)s filesystem for "
|
|
"instance %(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
@try_recover
|
|
def _mount_volume(self):
|
|
LOG.debug("Mount the volume on instance %(id)s", {
|
|
'id': self.instance.id})
|
|
mount_point = self.get_mount_point()
|
|
device_path = self.get_device_path()
|
|
self.instance.guest.mount_volume(device_path=device_path,
|
|
mount_point=mount_point)
|
|
LOG.debug("Successfully mounted the volume %(vol_id)s on instance "
|
|
"%(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
@try_recover
|
|
def _extend(self):
|
|
LOG.debug("Extending volume %(vol_id)s for instance %(id)s to "
|
|
"size %(size)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id,
|
|
'size': self.new_size})
|
|
self.instance.volume_client.volumes.extend(self.instance.volume_id,
|
|
self.new_size)
|
|
LOG.debug("Successfully extended the volume %(vol_id)s for instance "
|
|
"%(id)s", {'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
|
|
def _verify_extend(self):
|
|
try:
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
if not volume:
|
|
msg = (_('Failed to get volume %(vol_id)s') % {
|
|
'vol_id': self.instance.volume_id})
|
|
raise cinder_exceptions.ClientException(msg)
|
|
|
|
def volume_is_new_size():
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
return volume.size == self.new_size
|
|
utils.poll_until(volume_is_new_size,
|
|
sleep_time=2,
|
|
time_out=CONF.volume_time_out)
|
|
|
|
self.instance.update_db(volume_size=self.new_size)
|
|
except PollTimeOut:
|
|
LOG.exception("Timeout trying to extend the volume %(vol_id)s "
|
|
"for instance %(id)s",
|
|
{'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
if volume.status == 'extending':
|
|
self._fail(self._verify_extend)
|
|
elif volume.size != self.new_size:
|
|
self.instance.update_db(volume_size=volume.size)
|
|
self._recover_full(self._verify_extend)
|
|
raise
|
|
except Exception:
|
|
LOG.exception("Error encountered trying to verify extend for "
|
|
"the volume %(vol_id)s for instance %(id)s",
|
|
{'vol_id': self.instance.volume_id,
|
|
'id': self.instance.id})
|
|
self._recover_full(self._verify_extend)
|
|
raise
|
|
|
|
def _resize_active_volume(self):
|
|
LOG.debug("Begin _resize_active_volume for id: %(id)s", {
|
|
'id': self.instance.id})
|
|
self._stop_db()
|
|
self._unmount_volume(recover_func=self._recover_restart)
|
|
self._detach_volume(recover_func=self._recover_mount_restart)
|
|
self._extend(recover_func=self._recover_full)
|
|
self._verify_extend()
|
|
# if anything fails after this point, recovery is futile
|
|
self._attach_volume(recover_func=self._fail)
|
|
self._resize_fs(recover_func=self._fail)
|
|
self._mount_volume(recover_func=self._fail)
|
|
self.instance.restart()
|
|
LOG.debug("End _resize_active_volume for id: %(id)s", {
|
|
'id': self.instance.id})
|
|
|
|
def execute(self):
|
|
LOG.debug("%(gt)s: Resizing instance %(id)s volume for server "
|
|
"%(server_id)s from %(old_volume_size)s to "
|
|
"%(new_size)r GB", {'gt': greenthread.getcurrent(),
|
|
'id': self.instance.id,
|
|
'server_id': self.instance.server.id,
|
|
'old_volume_size': self.old_size,
|
|
'new_size': self.new_size})
|
|
|
|
if self.instance.server.status == InstanceStatus.ACTIVE:
|
|
self._resize_active_volume()
|
|
self.instance.reset_task_status()
|
|
# send usage event for size reported by cinder
|
|
volume = self.instance.volume_client.volumes.get(
|
|
self.instance.volume_id)
|
|
launched_time = timeutils.isotime(self.instance.updated)
|
|
modified_time = timeutils.isotime(self.instance.updated)
|
|
TroveInstanceModifyVolume(instance=self.instance,
|
|
old_volume_size=self.old_size,
|
|
launched_at=launched_time,
|
|
modify_at=modified_time,
|
|
volume_size=volume.size,
|
|
).notify()
|
|
else:
|
|
self.instance.reset_task_status()
|
|
msg = _("Failed to resize instance %(id)s volume for server "
|
|
"%(server_id)s. The instance must be in state %(state)s "
|
|
"not %(inst_state)s.") % {
|
|
'id': self.instance.id,
|
|
'server_id': self.instance.server.id,
|
|
'state': InstanceStatus.ACTIVE,
|
|
'inst_state': self.instance.server.status}
|
|
raise TroveError(msg)
|
|
|
|
|
|
class ResizeActionBase(object):
|
|
"""Base class for executing a resize action."""
|
|
|
|
def __init__(self, instance):
|
|
"""
|
|
Creates a new resize action for a given instance
|
|
:param instance: reference to existing instance that will be resized
|
|
:type instance: trove.taskmanager.models.BuiltInstanceTasks
|
|
"""
|
|
self.instance = instance
|
|
|
|
def _assert_guest_is_ok(self):
|
|
# The guest will never set the status to PAUSED.
|
|
self.instance.set_datastore_status_to_paused()
|
|
# Now we wait until it sets it to anything at all,
|
|
# so we know it's alive.
|
|
utils.poll_until(
|
|
self._guest_is_awake,
|
|
sleep_time=2,
|
|
time_out=CONF.resize_time_out)
|
|
|
|
def _assert_nova_status_is_ok(self):
|
|
# Make sure Nova thinks things went well.
|
|
if not self.instance.server_status_matches(["VERIFY_RESIZE"]):
|
|
msg = "Migration failed! status=%(act_status)s and " \
|
|
"not %(exp_status)s" % {
|
|
"act_status": self.instance.server.status,
|
|
"exp_status": 'VERIFY_RESIZE'}
|
|
raise TroveError(msg)
|
|
|
|
def _assert_datastore_is_ok(self):
|
|
# Tell the guest to turn on datastore, and ensure the status becomes
|
|
# RUNNING.
|
|
self._start_datastore()
|
|
utils.poll_until(
|
|
self._datastore_is_online,
|
|
sleep_time=2,
|
|
time_out=CONF.resize_time_out)
|
|
|
|
def _assert_datastore_is_offline(self):
|
|
# Tell the guest to turn off MySQL, and ensure the status becomes
|
|
# SHUTDOWN.
|
|
self.instance.guest.stop_db(do_not_start_on_reboot=True)
|
|
utils.poll_until(
|
|
self._datastore_is_offline,
|
|
sleep_time=2,
|
|
time_out=CONF.resize_time_out)
|
|
|
|
def _assert_processes_are_ok(self):
|
|
"""Checks the procs; if anything is wrong, reverts the operation."""
|
|
# Tell the guest to turn back on, and make sure it can start.
|
|
self._assert_guest_is_ok()
|
|
LOG.debug("Nova guest is ok.")
|
|
self._assert_datastore_is_ok()
|
|
LOG.debug("Datastore is ok.")
|
|
|
|
def _confirm_nova_action(self):
|
|
LOG.debug("Instance %s calling Compute confirm resize...",
|
|
self.instance.id)
|
|
self.instance.server.confirm_resize()
|
|
|
|
def _datastore_is_online(self):
|
|
self.instance._refresh_datastore_status()
|
|
return self.instance.is_datastore_running
|
|
|
|
def _datastore_is_offline(self):
|
|
self.instance._refresh_datastore_status()
|
|
return (self.instance.datastore_status_matches(
|
|
rd_instance.ServiceStatuses.SHUTDOWN))
|
|
|
|
def _revert_nova_action(self):
|
|
LOG.debug("Instance %s calling Compute revert resize...",
|
|
self.instance.id)
|
|
self.instance.server.revert_resize()
|
|
|
|
def execute(self):
|
|
"""Initiates the action."""
|
|
try:
|
|
LOG.debug("Instance %s calling stop_db...", self.instance.id)
|
|
self._assert_datastore_is_offline()
|
|
self._perform_nova_action()
|
|
finally:
|
|
if self.instance.db_info.task_status != (
|
|
inst_models.InstanceTasks.NONE):
|
|
self.instance.reset_task_status()
|
|
|
|
def _guest_is_awake(self):
|
|
self.instance._refresh_datastore_status()
|
|
return not self.instance.datastore_status_matches(
|
|
rd_instance.ServiceStatuses.PAUSED)
|
|
|
|
def _perform_nova_action(self):
|
|
"""Calls Nova to resize or migrate an instance, and confirms."""
|
|
LOG.debug("Begin resize method _perform_nova_action instance: %s",
|
|
self.instance.id)
|
|
need_to_revert = False
|
|
try:
|
|
LOG.debug("Initiating nova action")
|
|
self._initiate_nova_action()
|
|
LOG.debug("Waiting for nova action")
|
|
self._wait_for_nova_action()
|
|
LOG.debug("Asserting nova status is ok")
|
|
self._assert_nova_status_is_ok()
|
|
need_to_revert = True
|
|
LOG.debug("* * * REVERT BARRIER PASSED * * *")
|
|
LOG.debug("Asserting nova action success")
|
|
self._assert_nova_action_was_successful()
|
|
LOG.debug("Asserting processes are OK")
|
|
self._assert_processes_are_ok()
|
|
LOG.debug("Confirming nova action")
|
|
self._confirm_nova_action()
|
|
except Exception:
|
|
LOG.exception("Exception during nova action.")
|
|
if need_to_revert:
|
|
LOG.error("Reverting action for instance %s",
|
|
self.instance.id)
|
|
self._revert_nova_action()
|
|
self._wait_for_revert_nova_action()
|
|
|
|
if self.instance.server_status_matches(['ACTIVE']):
|
|
LOG.error("Restarting datastore.")
|
|
self.instance.guest.restart()
|
|
else:
|
|
LOG.error("Cannot restart datastore because "
|
|
"Nova server status is not ACTIVE")
|
|
|
|
LOG.error("Error resizing instance %s.", self.instance.id)
|
|
raise
|
|
|
|
LOG.debug("Recording success")
|
|
self._record_action_success()
|
|
LOG.debug("End resize method _perform_nova_action instance: %s",
|
|
self.instance.id)
|
|
|
|
def _wait_for_nova_action(self):
|
|
# Wait for the flavor to change.
|
|
def update_server_info():
|
|
self.instance.refresh_compute_server_info()
|
|
return not self.instance.server_status_matches(['RESIZE'])
|
|
|
|
utils.poll_until(
|
|
update_server_info,
|
|
sleep_time=2,
|
|
time_out=CONF.resize_time_out)
|
|
|
|
def _wait_for_revert_nova_action(self):
|
|
# Wait for the server to return to ACTIVE after revert.
|
|
def update_server_info():
|
|
self.instance.refresh_compute_server_info()
|
|
return self.instance.server_status_matches(['ACTIVE'])
|
|
|
|
utils.poll_until(
|
|
update_server_info,
|
|
sleep_time=2,
|
|
time_out=CONF.revert_time_out)
|
|
|
|
|
|
class ResizeAction(ResizeActionBase):
|
|
def __init__(self, instance, old_flavor, new_flavor):
|
|
"""
|
|
:type instance: trove.taskmanager.models.BuiltInstanceTasks
|
|
:type old_flavor: dict
|
|
:type new_flavor: dict
|
|
"""
|
|
super(ResizeAction, self).__init__(instance)
|
|
self.old_flavor = old_flavor
|
|
self.new_flavor = new_flavor
|
|
self.new_flavor_id = new_flavor['id']
|
|
|
|
def _assert_nova_action_was_successful(self):
|
|
# Do check to make sure the status and flavor id are correct.
|
|
if str(self.instance.server.flavor['id']) != str(self.new_flavor_id):
|
|
msg = "Assertion failed! flavor_id=%s and not %s" \
|
|
% (self.instance.server.flavor['id'], self.new_flavor_id)
|
|
raise TroveError(msg)
|
|
|
|
def _initiate_nova_action(self):
|
|
self.instance.server.resize(self.new_flavor_id)
|
|
|
|
def _revert_nova_action(self):
|
|
LOG.debug("Instance %s calling Compute revert resize... "
|
|
"Repairing config.", self.instance.id)
|
|
try:
|
|
config = self.instance._render_config(self.old_flavor)
|
|
config = {'config_contents': config.config_contents}
|
|
self.instance.guest.reset_configuration(config)
|
|
except GuestTimeout:
|
|
LOG.exception("Error sending reset_configuration call.")
|
|
LOG.debug("Reverting resize.")
|
|
super(ResizeAction, self)._revert_nova_action()
|
|
|
|
def _record_action_success(self):
|
|
LOG.debug("Updating instance %(id)s to flavor_id %(flavor_id)s.",
|
|
{'id': self.instance.id, 'flavor_id': self.new_flavor_id})
|
|
self.instance.update_db(flavor_id=self.new_flavor_id,
|
|
task_status=inst_models.InstanceTasks.NONE)
|
|
update_time = timeutils.isotime(self.instance.updated)
|
|
TroveInstanceModifyFlavor(instance=self.instance,
|
|
old_instance_size=self.old_flavor['ram'],
|
|
instance_size=self.new_flavor['ram'],
|
|
launched_at=update_time,
|
|
modify_at=update_time,
|
|
server=self.instance.server).notify()
|
|
|
|
def _start_datastore(self):
|
|
config = self.instance._render_config(self.new_flavor)
|
|
self.instance.guest.start_db_with_conf_changes(config.config_contents)
|
|
|
|
|
|
class MigrateAction(ResizeActionBase):
|
|
def __init__(self, instance, host=None):
|
|
super(MigrateAction, self).__init__(instance)
|
|
self.instance = instance
|
|
self.host = host
|
|
|
|
def _assert_nova_action_was_successful(self):
|
|
LOG.debug("Currently no assertions for a Migrate Action")
|
|
|
|
def _initiate_nova_action(self):
|
|
LOG.debug("Migrating instance %(instance)s without flavor change ...\n"
|
|
"Forcing migration to host(%(host)s)",
|
|
{"instance": self.instance.id,
|
|
"host": self.host})
|
|
|
|
self.instance.server.migrate(force_host=self.host)
|
|
|
|
def _record_action_success(self):
|
|
LOG.debug("Successfully finished Migration to "
|
|
"%(hostname)s: %(id)s",
|
|
{'hostname': self.instance.hostname,
|
|
'id': self.instance.id})
|
|
|
|
def _start_datastore(self):
|
|
self.instance.guest.restart()
|
|
|
|
|
|
def load_cluster_tasks(context, cluster_id):
|
|
manager = Cluster.manager_from_cluster_id(context, cluster_id)
|
|
strat = strategy.load_taskmanager_strategy(manager)
|
|
task_manager_cluster_tasks_class = strat.task_manager_cluster_tasks_class
|
|
return ClusterTasks.load(context, cluster_id,
|
|
task_manager_cluster_tasks_class)
|