57 lines
1.8 KiB
Python
57 lines
1.8 KiB
Python
# (c) Copyright 2014,2015 Hewlett-Packard Development Company, L.P.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain 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,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Freezer Backup modes related functions
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"""
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from freezer.snapshot import lvm
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from freezer.snapshot import vss
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from freezer.utils import winutils
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def snapshot_create(backup_opt_dict):
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"""
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Calls the code to take fs snapshots, depending on the platform
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:param backup_opt_dict:
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:return: boolean value, True if snapshot has been taken, false otherwise
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"""
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if not backup_opt_dict.snapshot:
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return False
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if winutils.is_windows():
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if backup_opt_dict.snapshot:
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# Create a shadow copy.
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backup_opt_dict.shadow_path, backup_opt_dict.shadow = \
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vss.vss_create_shadow_copy(backup_opt_dict.windows_volume)
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backup_opt_dict.path_to_backup = winutils.use_shadow(
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backup_opt_dict.path_to_backup,
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backup_opt_dict.windows_volume)
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return True
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return False
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else:
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return lvm.lvm_snap(backup_opt_dict)
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def snapshot_remove(backup_opt_dict, shadow, windows_volume):
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if winutils.is_windows():
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# Delete the shadow copy after the backup
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vss.vss_delete_shadow_copy(shadow, windows_volume)
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else:
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# Unmount and remove lvm snapshot volume
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lvm.lvm_snap_remove(backup_opt_dict)
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