Revision 7d81bb8b lib/storage/extstorage.py
| b/lib/storage/extstorage.py | ||
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" ExtStorage provider for the '%s' hypervisor" |
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% (self.driver, hypervisor)) |
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def Snapshot(self, snapshot_name): |
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"""Take a snapshot of the block device. |
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""" |
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# Call the External Storage's setinfo script, |
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# to set metadata for an existing Volume inside the External Storage |
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_ExtStorageAction(constants.ES_ACTION_SNAPSHOT, self.unique_id, |
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self.ext_params, snapshot_name=snapshot_name) |
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def _ExtStorageAction(action, unique_id, ext_params, |
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size=None, grow=None, metadata=None, |
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name=None, uuid=None): |
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name=None, uuid=None, snapshot_name=None):
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"""Take an External Storage action. |
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Take an External Storage action concerning or affecting |
| ... | ... | |
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# Create the basic environment for the driver's scripts |
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create_env = _ExtStorageEnvironment(unique_id, ext_params, size, |
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grow, metadata, name, uuid) |
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grow, metadata, name, uuid, |
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snapshot_name) |
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# Do not use log file for action `attach' as we need |
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# to get the output from RunResult |
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detach_script=es_files[constants.ES_SCRIPT_DETACH], |
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setinfo_script=es_files[constants.ES_SCRIPT_SETINFO], |
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verify_script=es_files[constants.ES_SCRIPT_VERIFY], |
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snapshot_script=es_files[constants.ES_SCRIPT_SNAPSHOT], |
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supported_parameters=parameters) |
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return True, es_obj |
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def _ExtStorageEnvironment(unique_id, ext_params, |
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size=None, grow=None, metadata=None, |
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name=None, uuid=None): |
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name=None, uuid=None, snapshot_name=None):
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"""Calculate the environment for an External Storage script. |
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@type unique_id: tuple (driver, vol_name) |
| ... | ... | |
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if uuid is not None: |
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result["VOL_UUID"] = uuid |
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if snapshot_name is not None: |
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result["VOL_SNAPSHOT_NAME"] = snapshot_name |
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return result |
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