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# Copyright (c) 2014 Mirantis, Inc.
# All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import os
from oslo_log import log as logging
from trove.common.i18n import _
from trove.common import instance as ds_instance
from trove.common.notification import EndNotification
from trove.guestagent import backup
from trove.guestagent.common import operating_system
from trove.guestagent.datastore.experimental.mongodb import service
from trove.guestagent.datastore.experimental.mongodb import system
from trove.guestagent.datastore import manager
from trove.guestagent import dbaas
from trove.guestagent import volume
LOG = logging.getLogger(__name__)
class Manager(manager.Manager):
def __init__(self):
self.app = service.MongoDBApp()
super(Manager, self).__init__('mongodb')
@property
def status(self):
return self.app.status
@property
def configuration_manager(self):
return self.app.configuration_manager
def do_prepare(self, context, packages, databases, memory_mb, users,
device_path, mount_point, backup_info,
config_contents, root_password, overrides,
cluster_config, snapshot):
"""This is called from prepare in the base class."""
self.app.install_if_needed(packages)
self.status.wait_for_database_service_start(
self.app.state_change_wait_time)
self.app.stop_db()
self.app.clear_storage()
mount_point = system.MONGODB_MOUNT_POINT
if device_path:
device = volume.VolumeDevice(device_path)
# unmount if device is already mounted
device.unmount_device(device_path)
device.format()
if os.path.exists(system.MONGODB_MOUNT_POINT):
device.migrate_data(mount_point)
device.mount(mount_point)
operating_system.chown(mount_point,
system.MONGO_USER, system.MONGO_USER,
as_root=True)
LOG.debug("Mounted the volume %(path)s as %(mount)s.",
{'path': device_path, "mount": mount_point})
if config_contents:
# Save resolved configuration template first.
self.app.configuration_manager.save_configuration(config_contents)
# Apply guestagent specific configuration changes.
self.app.apply_initial_guestagent_configuration(
cluster_config, mount_point)
if not cluster_config:
# Create the Trove admin user.
self.app.secure()
# Don't start mongos until add_config_servers is invoked,
# don't start members as they should already be running.
if not (self.app.is_query_router or self.app.is_cluster_member):
self.app.start_db(update_db=True)
if not cluster_config and backup_info:
self._perform_restore(backup_info, context, mount_point, self.app)
if service.MongoDBAdmin().is_root_enabled():
self.app.status.report_root(context, 'root')
def restart(self, context):
LOG.debug("Restarting MongoDB.")
self.app.restart()
def start_db_with_conf_changes(self, context, config_contents):
LOG.debug("Starting MongoDB with configuration changes.")
self.app.start_db_with_conf_changes(config_contents)
def stop_db(self, context, do_not_start_on_reboot=False):
LOG.debug("Stopping MongoDB.")
self.app.stop_db(do_not_start_on_reboot=do_not_start_on_reboot)
def get_filesystem_stats(self, context, fs_path):
"""Gets the filesystem stats for the path given."""
LOG.debug("Getting file system status.")
# TODO(peterstac) - why is this hard-coded?
return dbaas.get_filesystem_volume_stats(system.MONGODB_MOUNT_POINT)
def change_passwords(self, context, users):
LOG.debug("Changing password.")
with EndNotification(context):
return service.MongoDBAdmin().change_passwords(users)
def update_attributes(self, context, username, hostname, user_attrs):
LOG.debug("Updating database attributes.")
with EndNotification(context):
return service.MongoDBAdmin().update_attributes(username,
user_attrs)
def create_database(self, context, databases):
LOG.debug("Creating database(s).")
with EndNotification(context):
return service.MongoDBAdmin().create_database(databases)
def create_user(self, context, users):
LOG.debug("Creating user(s).")
with EndNotification(context):
return service.MongoDBAdmin().create_users(users)
def delete_database(self, context, database):
LOG.debug("Deleting database.")
with EndNotification(context):
return service.MongoDBAdmin().delete_database(database)
def delete_user(self, context, user):
LOG.debug("Deleting user.")
with EndNotification(context):
return service.MongoDBAdmin().delete_user(user)
def get_user(self, context, username, hostname):
LOG.debug("Getting user.")
return service.MongoDBAdmin().get_user(username)
def grant_access(self, context, username, hostname, databases):
LOG.debug("Granting access.")
return service.MongoDBAdmin().grant_access(username, databases)
def revoke_access(self, context, username, hostname, database):
LOG.debug("Revoking access.")
return service.MongoDBAdmin().revoke_access(username, database)
def list_access(self, context, username, hostname):
LOG.debug("Listing access.")
return service.MongoDBAdmin().list_access(username)
def list_databases(self, context, limit=None, marker=None,
include_marker=False):
LOG.debug("Listing databases.")
return service.MongoDBAdmin().list_databases(limit, marker,
include_marker)
def list_users(self, context, limit=None, marker=None,
include_marker=False):
LOG.debug("Listing users.")
return service.MongoDBAdmin().list_users(limit, marker, include_marker)
def enable_root(self, context):
LOG.debug("Enabling root.")
return service.MongoDBAdmin().enable_root()
def enable_root_with_password(self, context, root_password=None):
return service.MongoDBAdmin().enable_root(root_password)
def is_root_enabled(self, context):
LOG.debug("Checking if root is enabled.")
return service.MongoDBAdmin().is_root_enabled()
def _perform_restore(self, backup_info, context, restore_location, app):
LOG.info(_("Restoring database from backup %s."), backup_info['id'])
try:
backup.restore(context, backup_info, restore_location)
except Exception:
LOG.exception(_("Error performing restore from backup %s."),
backup_info['id'])
self.status.set_status(ds_instance.ServiceStatuses.FAILED)
raise
LOG.info(_("Restored database successfully."))
def create_backup(self, context, backup_info):
LOG.debug("Creating backup.")
with EndNotification(context):
backup.backup(context, backup_info)
def update_overrides(self, context, overrides, remove=False):
LOG.debug("Updating overrides.")
if remove:
self.app.remove_overrides()
else:
self.app.update_overrides(context, overrides, remove)
def apply_overrides(self, context, overrides):
LOG.debug("Overrides will be applied after restart.")
pass
def add_members(self, context, members):
try:
LOG.debug("add_members called.")
LOG.debug("args: members=%s.", members)
self.app.add_members(members)
LOG.debug("add_members call has finished.")
except Exception:
self.app.status.set_status(ds_instance.ServiceStatuses.FAILED)
raise
def add_config_servers(self, context, config_servers):
try:
LOG.debug("add_config_servers called.")
LOG.debug("args: config_servers=%s.", config_servers)
self.app.add_config_servers(config_servers)
LOG.debug("add_config_servers call has finished.")
except Exception:
self.app.status.set_status(ds_instance.ServiceStatuses.FAILED)
raise
def add_shard(self, context, replica_set_name, replica_set_member):
try:
LOG.debug("add_shard called.")
LOG.debug("args: replica_set_name=%(name)s, "
"replica_set_member=%(member)s.",
{'name': replica_set_name, 'member': replica_set_member})
self.app.add_shard(replica_set_name, replica_set_member)
LOG.debug("add_shard call has finished.")
except Exception:
self.app.status.set_status(ds_instance.ServiceStatuses.FAILED)
raise
def get_key(self, context):
# Return the cluster key
LOG.debug("Getting the cluster key.")
return self.app.get_key()
def prep_primary(self, context):
LOG.debug("Preparing to be primary member.")
self.app.prep_primary()
def create_admin_user(self, context, password):
self.app.create_admin_user(password)
def store_admin_password(self, context, password):
self.app.store_admin_password(password)
def get_replica_set_name(self, context):
# Return this nodes replica set name
LOG.debug("Getting the replica set name.")
return self.app.replica_set_name
def get_admin_password(self, context):
# Return the admin password from this instance
LOG.debug("Getting the admin password.")
return self.app.admin_password
def is_shard_active(self, context, replica_set_name):
return self.app.is_shard_active(replica_set_name)
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