207 lines
7.9 KiB
Python
207 lines
7.9 KiB
Python
# Copyright 2013 OpenStack Foundation
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# Copyright 2013 Rackspace Hosting
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# Copyright 2013 Hewlett-Packard Development Company, L.P.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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#
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import os
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from trove.common import cfg
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from trove.common import instance as rd_instance
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from trove.guestagent import dbaas
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from trove.guestagent import backup
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from trove.guestagent import volume
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from trove.guestagent.datastore.mysql.service import MySqlAppStatus
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from trove.guestagent.datastore.mysql.service import MySqlAdmin
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from trove.guestagent.datastore.mysql.service import MySqlApp
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from trove.openstack.common import log as logging
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from trove.openstack.common.gettextutils import _
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from trove.openstack.common import periodic_task
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LOG = logging.getLogger(__name__)
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CONF = cfg.CONF
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MANAGER = CONF.datastore_manager
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class Manager(periodic_task.PeriodicTasks):
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@periodic_task.periodic_task(ticks_between_runs=3)
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def update_status(self, context):
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"""Update the status of the MySQL service"""
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MySqlAppStatus.get().update()
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def change_passwords(self, context, users):
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return MySqlAdmin().change_passwords(users)
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def update_attributes(self, context, username, hostname, user_attrs):
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return MySqlAdmin().update_attributes(username, hostname, user_attrs)
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def reset_configuration(self, context, configuration):
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app = MySqlApp(MySqlAppStatus.get())
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app.reset_configuration(configuration)
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def create_database(self, context, databases):
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return MySqlAdmin().create_database(databases)
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def create_user(self, context, users):
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MySqlAdmin().create_user(users)
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def delete_database(self, context, database):
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return MySqlAdmin().delete_database(database)
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def delete_user(self, context, user):
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MySqlAdmin().delete_user(user)
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def get_user(self, context, username, hostname):
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return MySqlAdmin().get_user(username, hostname)
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def grant_access(self, context, username, hostname, databases):
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return MySqlAdmin().grant_access(username, hostname, databases)
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def revoke_access(self, context, username, hostname, database):
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return MySqlAdmin().revoke_access(username, hostname, database)
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def list_access(self, context, username, hostname):
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return MySqlAdmin().list_access(username, hostname)
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def list_databases(self, context, limit=None, marker=None,
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include_marker=False):
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return MySqlAdmin().list_databases(limit, marker,
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include_marker)
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def list_users(self, context, limit=None, marker=None,
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include_marker=False):
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return MySqlAdmin().list_users(limit, marker,
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include_marker)
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def enable_root(self, context):
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return MySqlAdmin().enable_root()
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def is_root_enabled(self, context):
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return MySqlAdmin().is_root_enabled()
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def _perform_restore(self, backup_info, context, restore_location, app):
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LOG.info(_("Restoring database from backup %s") % backup_info['id'])
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try:
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backup.restore(context, backup_info, restore_location)
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except Exception as e:
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LOG.error(e)
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LOG.error("Error performing restore from backup %s",
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backup_info['id'])
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app.status.set_status(rd_instance.ServiceStatuses.FAILED)
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raise
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LOG.info(_("Restored database successfully"))
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def prepare(self, context, packages, databases, memory_mb, users,
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device_path=None, mount_point=None, backup_info=None,
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config_contents=None, root_password=None, overrides=None):
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"""Makes ready DBAAS on a Guest container."""
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MySqlAppStatus.get().begin_install()
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# status end_mysql_install set with secure()
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app = MySqlApp(MySqlAppStatus.get())
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app.install_if_needed(packages)
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if device_path:
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#stop and do not update database
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app.stop_db()
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device = volume.VolumeDevice(device_path)
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# unmount if device is already mounted
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device.unmount_device(device_path)
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device.format()
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if os.path.exists(mount_point):
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#rsync exiting data
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device.migrate_data(mount_point)
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#mount the volume
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device.mount(mount_point)
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LOG.debug("Mounted the volume.")
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app.start_mysql()
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if backup_info:
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self._perform_restore(backup_info, context,
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mount_point, app)
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LOG.info(_("Securing mysql now."))
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app.secure(config_contents, overrides)
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enable_root_on_restore = (backup_info and
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MySqlAdmin().is_root_enabled())
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if root_password and not backup_info:
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app.secure_root(secure_remote_root=True)
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MySqlAdmin().enable_root(root_password)
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elif enable_root_on_restore:
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app.secure_root(secure_remote_root=False)
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MySqlAppStatus.get().report_root('root')
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else:
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app.secure_root(secure_remote_root=True)
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app.complete_install_or_restart()
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if databases:
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self.create_database(context, databases)
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if users:
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self.create_user(context, users)
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LOG.info('"prepare" call has finished.')
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def restart(self, context):
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app = MySqlApp(MySqlAppStatus.get())
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app.restart()
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def start_db_with_conf_changes(self, context, config_contents):
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app = MySqlApp(MySqlAppStatus.get())
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app.start_db_with_conf_changes(config_contents)
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def stop_db(self, context, do_not_start_on_reboot=False):
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app = MySqlApp(MySqlAppStatus.get())
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app.stop_db(do_not_start_on_reboot=do_not_start_on_reboot)
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def get_filesystem_stats(self, context, fs_path):
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"""Gets the filesystem stats for the path given. """
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mount_point = CONF.get(
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'mysql' if not MANAGER else MANAGER).mount_point
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return dbaas.get_filesystem_volume_stats(mount_point)
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def create_backup(self, context, backup_info):
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"""
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Entry point for initiating a backup for this guest agents db instance.
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The call currently blocks until the backup is complete or errors. If
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device_path is specified, it will be mounted based to a point specified
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in configuration.
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:param backup_info: a dictionary containing the db instance id of the
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backup task, location, type, and other data.
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"""
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backup.backup(context, backup_info)
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def mount_volume(self, context, device_path=None, mount_point=None):
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device = volume.VolumeDevice(device_path)
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device.mount(mount_point, write_to_fstab=False)
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LOG.debug("Mounted the volume.")
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def unmount_volume(self, context, device_path=None, mount_point=None):
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device = volume.VolumeDevice(device_path)
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device.unmount(mount_point)
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LOG.debug("Unmounted the volume.")
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def resize_fs(self, context, device_path=None, mount_point=None):
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device = volume.VolumeDevice(device_path)
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device.resize_fs(mount_point)
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LOG.debug("Resized the filesystem")
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def update_overrides(self, context, overrides, remove=False):
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app = MySqlApp(MySqlAppStatus.get())
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app.update_overrides(overrides, remove=remove)
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def apply_overrides(self, context, overrides):
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app = MySqlApp(MySqlAppStatus.get())
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app.apply_overrides(overrides)
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