131 lines
4.4 KiB
Python
131 lines
4.4 KiB
Python
# Copyright 2013 Hewlett-Packard Development Company, L.P.
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# Copyright 2014 Mirantis Inc.
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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 re
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from oslo_log import log as logging
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from trove.common.i18n import _
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from trove.guestagent.datastore.mysql.service import MySqlApp
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from trove.guestagent.datastore.mysql_common.service import ADMIN_USER_NAME
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from trove.guestagent.strategies.backup import base
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LOG = logging.getLogger(__name__)
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class MySQLDump(base.BackupRunner):
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"""Implementation of Backup Strategy for MySQLDump."""
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__strategy_name__ = 'mysqldump'
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@property
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def cmd(self):
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user_and_pass = (
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' --password=%(password)s -u %(user)s '
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'2>/tmp/mysqldump.log' %
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{'password': MySqlApp.get_auth_password(),
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'user': ADMIN_USER_NAME})
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cmd = ('mysqldump'
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' --all-databases'
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' %(extra_opts)s'
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' --opt' + user_and_pass)
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return cmd + self.zip_cmd + self.encrypt_cmd
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class InnoBackupEx(base.BackupRunner):
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"""Implementation of Backup Strategy for InnoBackupEx."""
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__strategy_name__ = 'innobackupex'
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@property
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def user_and_pass(self):
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return (' --user=%(user)s --password=%(password)s ' %
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{'user': ADMIN_USER_NAME,
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'password': MySqlApp.get_auth_password()})
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@property
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def cmd(self):
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cmd = ('sudo innobackupex'
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' --stream=xbstream'
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' %(extra_opts)s ' +
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self.user_and_pass +
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MySqlApp.get_data_dir() +
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' 2>/tmp/innobackupex.log'
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)
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return cmd + self.zip_cmd + self.encrypt_cmd
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def check_process(self):
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"""Check the output from innobackupex for 'completed OK!'."""
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LOG.debug('Checking innobackupex process output.')
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with open('/tmp/innobackupex.log', 'r') as backup_log:
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output = backup_log.read()
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LOG.info(output)
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if not output:
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LOG.error(_("Innobackupex log file empty."))
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return False
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last_line = output.splitlines()[-1].strip()
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if not re.search('completed OK!', last_line):
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LOG.error(_("Innobackupex did not complete successfully."))
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return False
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return True
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def metadata(self):
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LOG.debug('Getting metadata from backup.')
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meta = {}
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lsn = re.compile("The latest check point \(for incremental\): '(\d+)'")
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with open('/tmp/innobackupex.log', 'r') as backup_log:
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output = backup_log.read()
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match = lsn.search(output)
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if match:
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meta = {'lsn': match.group(1)}
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LOG.info(_("Metadata for backup: %s."), str(meta))
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return meta
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@property
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def filename(self):
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return '%s.xbstream' % self.base_filename
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class InnoBackupExIncremental(InnoBackupEx):
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"""InnoBackupEx incremental backup."""
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def __init__(self, *args, **kwargs):
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if not kwargs.get('lsn'):
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raise AttributeError(_('lsn attribute missing, bad parent?'))
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super(InnoBackupExIncremental, self).__init__(*args, **kwargs)
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self.parent_location = kwargs.get('parent_location')
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self.parent_checksum = kwargs.get('parent_checksum')
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@property
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def cmd(self):
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cmd = ('sudo innobackupex'
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' --stream=xbstream'
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' --incremental'
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' --incremental-lsn=%(lsn)s'
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' %(extra_opts)s ' +
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self.user_and_pass +
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MySqlApp.get_data_dir() +
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' 2>/tmp/innobackupex.log')
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return cmd + self.zip_cmd + self.encrypt_cmd
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def metadata(self):
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_meta = super(InnoBackupExIncremental, self).metadata()
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_meta.update({
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'parent_location': self.parent_location,
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'parent_checksum': self.parent_checksum,
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})
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return _meta
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