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backup_cluster_test.py
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backup_cluster_test.py
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# -*- coding: utf-8 -*-
#
# 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 configparser
import pathlib
import unittest
from builtins import staticmethod
from enum import IntEnum
from unittest.mock import create_autospec
from medusa.cassandra_utils import Cassandra, CqlSessionProvider
from medusa.config import (KubernetesConfig, _namedtuple_from_dict,
MedusaConfig, CassandraConfig, SSHConfig, StorageConfig)
from medusa.monitoring import Monitoring
from medusa.orchestration import Orchestration
from medusa.storage import Storage
from medusa.backup_cluster import BackupJob, orchestrate
class ExitCode(IntEnum):
SUCCESS = 0
ERROR = 1
class BackupClusterTest(unittest.TestCase):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
def setUp(self):
self.config = self._build_config_parser()
self.medusa_config = self._build_medusa_config(self.config)
self.mock_orchestration = create_autospec(Orchestration)
self.mock_cassandra_config = create_autospec(Cassandra)
self.mock_cql_session_provider = create_autospec(CqlSessionProvider)
self.mock_monitoring = create_autospec(Monitoring)
self.mock_storage = create_autospec(Storage)
@staticmethod
def _build_config_parser(cassandra_config=None, ssh_config=None, storage_config=None):
"""Build and return a mutable config"""
config = configparser.ConfigParser(interpolation=None)
config['cassandra'] = {
'use_sudo': 'True',
'resolve_ip_addresses': 'False'
} if cassandra_config is None else cassandra_config
config['ssh'] = {
'username': '',
'key_file': '',
'port': '22',
'cert_file': ''
} if ssh_config is None else ssh_config
config['storage'] = {
'fqdn': '127.0.0.1',
'storage_provider': ''
} if storage_config is None else storage_config
config['kubernetes'] = {
'enabled': 'False',
}
return config
@staticmethod
def _build_medusa_config(config):
return MedusaConfig(
file_path=None,
storage=_namedtuple_from_dict(StorageConfig, config['storage']),
monitoring={},
cassandra=_namedtuple_from_dict(CassandraConfig, config['cassandra']),
ssh=_namedtuple_from_dict(SSHConfig, config['ssh']),
checks=None,
logging=None,
grpc=None,
kubernetes=_namedtuple_from_dict(KubernetesConfig, config['kubernetes']),
)
def test_backup_object_creation(self):
self.mock_orchestration.pssh_run.return_value = True
medusa_conf = self._build_medusa_config(self.config)
backup_job = BackupJob(medusa_conf, "backup1", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, self.mock_cassandra_config)
backup_job.execute(self.mock_cql_session_provider)
assert self.mock_orchestration.pssh_run.call_count == 2
def test_backup_orchestration(self):
self.mock_orchestration.pssh_run.return_value = True
self.mock_storage.get_cluster_backup.return_value = None
medusa_conf = self._build_medusa_config(self.config)
orchestrate(medusa_conf, "backup2", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, self.mock_cassandra_config,
self.mock_monitoring, self.mock_storage, self.mock_cql_session_provider)
assert self.mock_orchestration.pssh_run.call_count == 2
def test_fail_backup_orchestration(self):
self.mock_orchestration.pssh_run.return_value = True
self.mock_storage.get_cluster_backup.return_value = None
medusa_conf = self._build_medusa_config(self.config)
with self.assertRaises(SystemExit):
orchestrate(medusa_conf, "backup2", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, self.mock_cassandra_config,
self.mock_monitoring, self.mock_storage)
def test_backup_orchestration_already_exists(self):
self.mock_orchestration.pssh_run.return_value = True
medusa_conf = self._build_medusa_config(self.config)
with self.assertRaises(SystemExit):
orchestrate(medusa_conf, "backup2", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, self.mock_cassandra_config,
self.mock_monitoring, self.mock_storage)
def test_backup_orchestration_pssh_snapshot_failure(self):
self.mock_orchestration.pssh_run.return_value = False
self.mock_storage.get_cluster_backup.return_value = None
medusa_conf = self._build_medusa_config(self.config)
with self.assertRaises(SystemExit):
orchestrate(medusa_conf, "backup2", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, self.mock_cassandra_config,
self.mock_monitoring, self.mock_storage)
def test_backup_orchestration_pssh_backup_failure(self):
mock_backup = create_autospec(Orchestration)
mock_backup.pssh_run.return_value = False
self.mock_orchestration.pssh_run.return_value = True
self.mock_storage.get_cluster_backup.return_value = None
medusa_conf = self._build_medusa_config(self.config)
with self.assertRaises(SystemExit):
orchestrate(medusa_conf, "backup2", "127.0.0.1", None, True, "differential", pathlib.Path("/tmp"),
1, 2, self.mock_orchestration, self.mock_orchestration, mock_backup,
self.mock_monitoring, self.mock_storage)
if __name__ == '__main__':
unittest.main()