def purge_random_snapshot(longhorn_api_client, volume_name, snapshot_name):
volume = longhorn_api_client.by_id_volume(volume_name)
volume.snapshotPurge()
wait_for_snapshot_purge(longhorn_api_client, volume_name, snapshot_name)
def snapshot_test(client): # NOQA
volume = client.by_id_volume(VOLUME_NAME)
snap1 = volume.snapshotCreate()
snap2 = volume.snapshotCreate()
snap3 = volume.snapshotCreate()
snapshots = volume.snapshotList()
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["removed"] is False
volume.snapshotDelete(name=snap3["name"])
snapshots = volume.snapshotList(volume=VOLUME_NAME)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["children"] == ["volume-head"]
assert snapMap[snap3["name"]]["removed"] is True
snap = volume.snapshotGet(name=snap3["name"])
assert snap["name"] == snap3["name"]
assert snap["parent"] == snap3["parent"]
assert snap["children"] == snap3["children"]
assert snap["removed"] is True
volume.snapshotRevert(name=snap2["name"])
snapshots = volume.snapshotList(volume=VOLUME_NAME)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snap3["name"] in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["children"] == []
assert snapMap[snap3["name"]]["removed"] is True
volume.snapshotDelete(name=snap1["name"])
volume.snapshotDelete(name=snap2["name"])
volume.snapshotPurge()
wait_for_snapshot_purge(volume, snap1["name"], snap3["name"])
snapshots = volume.snapshotList(volume=VOLUME_NAME)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snap1["name"] not in snapMap
assert snap3["name"] not in snapMap
# it's the parent of volume-head, so it cannot be purged at this time
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == ""
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is True
def snapshot_test(clients, volume_name, base_image): # NOQA
for host_id, client in clients.iteritems():
break
volume = client.create_volume(name=volume_name,
size=SIZE,
numberOfReplicas=2,
baseImage=base_image)
volume = common.wait_for_volume_detached(client, volume_name)
assert volume["name"] == volume_name
assert volume["size"] == SIZE
assert volume["numberOfReplicas"] == 2
assert volume["state"] == "detached"
assert volume["baseImage"] == base_image
lht_hostId = get_self_host_id()
volume = volume.attach(hostId=lht_hostId)
volume = common.wait_for_volume_healthy(client, volume_name)
volume = client.by_id_volume(volume_name)
positions = {}
snap1 = volume.snapshotCreate()
snap2_data = write_volume_random_data(volume, positions)
snap2 = volume.snapshotCreate()
snap3_data = write_volume_random_data(volume, positions)
snap3 = volume.snapshotCreate()
snapshots = volume.snapshotList()
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["removed"] is False
volume.snapshotDelete(name=snap3["name"])
check_volume_data(volume, snap3_data)
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 1
assert "volume-head" in snapMap[snap3["name"]]["children"]
assert snapMap[snap3["name"]]["removed"] is True
snap = volume.snapshotGet(name=snap3["name"])
assert snap["name"] == snap3["name"]
assert snap["parent"] == snap3["parent"]
assert len(snap3["children"]) == 1
assert len(snap["children"]) == 1
assert "volume-head" in snap3["children"]
assert "volume-head" in snap["children"]
assert snap["removed"] is True
volume.snapshotRevert(name=snap2["name"])
check_volume_data(volume, snap2_data)
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snap3["name"] in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 0
assert snapMap[snap3["name"]]["removed"] is True
volume.snapshotDelete(name=snap1["name"])
volume.snapshotDelete(name=snap2["name"])
volume.snapshotPurge()
wait_for_snapshot_purge(volume, snap1["name"], snap3["name"])
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snap1["name"] not in snapMap
assert snap3["name"] not in snapMap
# it's the parent of volume-head, so it cannot be purged at this time
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == ""
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is True
check_volume_data(volume, snap2_data)
volume = volume.detach()
volume = common.wait_for_volume_detached(client, volume_name)
client.delete(volume)
volume = wait_for_volume_delete(client, volume_name)
volumes = client.list_volume()
assert len(volumes) == 0
def snapshot_test(client, volname):
volume = client.by_id_volume(volname)
vol_rwsize = VOLUME_RWTEST_SIZE
positions = {}
snap1 = volume.snapshotCreate()
snap2_pos = generate_random_pos(vol_rwsize, positions)
snap2_wdata = generate_random_data(vol_rwsize)
volume_write(volume["endpoint"], snap2_pos, snap2_wdata)
snap2 = volume.snapshotCreate()
snap3_pos = generate_random_pos(vol_rwsize, positions)
snap3_wdata = generate_random_data(vol_rwsize)
volume_write(volume["endpoint"], snap3_pos, snap3_wdata)
snap3 = volume.snapshotCreate()
snapshots = volume.snapshotList()
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["removed"] is False
volume.snapshotDelete(name=snap3["name"])
snap3_rdata = volume_read(volume["endpoint"], snap3_pos,
len(snap3_wdata))
assert snap3_rdata == snap3_wdata
snapshots = volume.snapshotList(volume=volname)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 1
assert "volume-head" in snapMap[snap3["name"]]["children"]
assert snapMap[snap3["name"]]["removed"] is True
snap = volume.snapshotGet(name=snap3["name"])
assert snap["name"] == snap3["name"]
assert snap["parent"] == snap3["parent"]
assert len(snap3["children"]) == 1
assert len(snap["children"]) == 1
assert "volume-head" in snap3["children"]
assert "volume-head" in snap["children"]
assert snap["removed"] is True
volume.snapshotRevert(name=snap2["name"])
snap2_rdata = volume_read(volume["endpoint"], snap2_pos,
len(snap2_wdata))
assert snap2_rdata == snap2_wdata
snapshots = volume.snapshotList(volume=volname)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snap3["name"] in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 0
assert snapMap[snap3["name"]]["removed"] is True
volume.snapshotDelete(name=snap1["name"])
volume.snapshotDelete(name=snap2["name"])
volume.snapshotPurge()
wait_for_snapshot_purge(volume, snap1["name"], snap3["name"])
snapshots = volume.snapshotList(volume=volname)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snap1["name"] not in snapMap
assert snap3["name"] not in snapMap
# it's the parent of volume-head, so it cannot be purged at this time
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == ""
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is True
snap2_rdata = volume_read(volume["endpoint"], snap2_pos,
len(snap2_wdata))
assert snap2_rdata == snap2_wdata
def snapshot_test(clients, volume_name, base_image): # NOQA
for host_id, client in clients.iteritems():
break
volume = create_and_check_volume(client,
volume_name,
base_image=base_image)
lht_hostId = get_self_host_id()
volume = volume.attach(hostId=lht_hostId)
volume = common.wait_for_volume_healthy(client, volume_name)
volume = client.by_id_volume(volume_name)
positions = {}
snap1 = volume.snapshotCreate()
snap2_data = write_volume_random_data(volume, positions)
snap2 = volume.snapshotCreate()
snap3_data = write_volume_random_data(volume, positions)
snap3 = volume.snapshotCreate()
snapshots = volume.snapshotList()
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert snapMap[snap3["name"]]["removed"] is False
volume.snapshotDelete(name=snap3["name"])
check_volume_data(volume, snap3_data)
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 1
assert "volume-head" in snapMap[snap3["name"]]["children"]
assert snapMap[snap3["name"]]["removed"] is True
snap = volume.snapshotGet(name=snap3["name"])
assert snap["name"] == snap3["name"]
assert snap["parent"] == snap3["parent"]
assert len(snap3["children"]) == 1
assert len(snap["children"]) == 1
assert "volume-head" in snap3["children"]
assert "volume-head" in snap["children"]
assert snap["removed"] is True
volume.detach()
volume = common.wait_for_volume_detached(client, volume_name)
volume.attach(hostId=lht_hostId, disableFrontend=True)
common.wait_for_volume_healthy(client, volume_name)
volume = client.by_id_volume(volume_name)
engine = get_volume_engine(volume)
assert volume["disableFrontend"] is True
assert volume["frontend"] == "blockdev"
assert engine["endpoint"] == ""
volume.snapshotRevert(name=snap2["name"])
volume.detach()
volume = common.wait_for_volume_detached(client, volume_name)
volume.attach(hostId=lht_hostId, disableFrontend=False)
common.wait_for_volume_healthy(client, volume_name)
volume = client.by_id_volume(volume_name)
assert volume["disableFrontend"] is False
assert volume["frontend"] == "blockdev"
check_volume_data(volume, snap2_data)
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snapMap[snap1["name"]]["name"] == snap1["name"]
assert snapMap[snap1["name"]]["removed"] is False
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == snap1["name"]
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snap3["name"] in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is False
assert snapMap[snap3["name"]]["name"] == snap3["name"]
assert snapMap[snap3["name"]]["parent"] == snap2["name"]
assert len(snapMap[snap3["name"]]["children"]) == 0
assert snapMap[snap3["name"]]["removed"] is True
volume.snapshotDelete(name=snap1["name"])
volume.snapshotDelete(name=snap2["name"])
volume.snapshotPurge()
wait_for_snapshot_purge(volume, snap1["name"], snap3["name"])
snapshots = volume.snapshotList(volume=volume_name)
snapMap = {}
for snap in snapshots:
snapMap[snap["name"]] = snap
assert snap1["name"] not in snapMap
assert snap3["name"] not in snapMap
# it's the parent of volume-head, so it cannot be purged at this time
assert snapMap[snap2["name"]]["name"] == snap2["name"]
assert snapMap[snap2["name"]]["parent"] == ""
assert "volume-head" in snapMap[snap2["name"]]["children"]
assert snapMap[snap2["name"]]["removed"] is True
check_volume_data(volume, snap2_data)
cleanup_volume(client, volume)