Revision 4944a1f8 snf-cyclades-app/synnefo/volume/snapshots.py
| b/snf-cyclades-app/synnefo/volume/snapshots.py | ||
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from synnefo.logic import backend |
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from synnefo.volume import util |
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SNAPSHOTS_CONTAINER = "snapshots" |
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SNAPSHOTS_DOMAIN = "plankton" |
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SNAPSHOTS_PREFIX = "plankton:" |
| ... | ... | |
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volume.snapshot_counter += 1 |
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volume.save() |
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transaction.commit() |
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snapshot_metadata = {}
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snapshot_metadata[SNAPSHOTS_PREFIX + "name"] = description
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snapshot_metadata[SNAPSHOTS_PREFIX + "name"] = name
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snapshot_metadata[SNAPSHOTS_PREFIX + "description"] = description |
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snapshot_metadata[SNAPSHOTS_PREFIX + "metadata"] = json.dumps(metadata) |
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snapshot_metadata[SNAPSHOTS_PREFIX + "volume_id"] = volume.id |
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snapshot_metadata[SNAPSHOTS_PREFIX + "status"] = "CREATING" |
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#XXX: just to work |
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snapshot_metadata[SNAPSHOTS_PREFIX + "is_snapshot"] = True |
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#XXX: for images |
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snapshot_metadata[SNAPSHOTS_PREFIX + "store"] = "pithos" |
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snapshot_metadata[SNAPSHOTS_PREFIX + "disk_format"] = "diskdump" |
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snapshot_metadata[SNAPSHOTS_PREFIX + "default_container_format"] = "bare" |
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# XXX: Hack-ish way to clone the metadata |
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image_properties = {"EXCLUDE_ALL_TASKS": "yes",
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"description": description} |
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vm_metadata = dict(volume.machine.metadata.values_list("meta_key", "meta_value"))
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for key in ["OS", "users"]: |
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val = vm_metadata.get(key) |
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if val is not None: |
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image_properties[key] = val |
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snapshot_metadata[SNAPSHOTS_PREFIX + "properties"] = json.dumps(image_properties) |
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snapshot_name = generate_snapshot_name(volume) |
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mapfile = SNAPSHOTS_MAPFILE_PREFIX + snapshot_name |
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size = volume.size << 30 |
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with image_backend(user_id) as pithos_backend: |
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# move this to plankton backend |
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snapshot_uuid = pithos_backend.backend.register_object_map( |
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user=user_id, |
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account=user_id, |
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container=SNAPSHOTS_CONTAINER, |
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name=name, |
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size=volume.size, |
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name=snapshot_name, |
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size=size, |
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domain=SNAPSHOTS_DOMAIN, |
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type=SNAPSHOTS_TYPE, |
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mapfile=mapfile, |
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meta=snapshot_metadata, |
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replace_meta=False,
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replace_meta=True,
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permissions=None) |
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#checksum=None, |
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backend.snapshot_instance(volume.machine, snapshot_name=snapshot_uuid)
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backend.snapshot_instance(volume.machine, snapshot_name=snapshot_name)
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snapshot = util.get_snapshot(user_id, snapshot_uuid) |
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| ... | ... | |
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def generate_snapshot_name(volume): |
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time = isoformat(datetime.datetime.now()) |
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return "snf-snapshot-of-volume-%s-%s-%s" % (volume.id,
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volume.snapshot_counter, time)
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return "snf-snapshot-of-volume-%s-%s" % (volume.id, |
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volume.snapshot_counter) |
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@transaction.commit_on_success |
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