selfprivacy-rest-api/selfprivacy_api/migrations/mount_volume.py

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2022-07-26 12:33:44 +00:00
import os
import subprocess
from selfprivacy_api.migrations.migration import Migration
from selfprivacy_api.utils import ReadUserData, WriteUserData
from selfprivacy_api.utils.block_devices import BlockDevices
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class MountVolume(Migration):
"""Mount volume."""
def get_migration_name(self):
return "mount_volume"
def get_migration_description(self):
return "Mount volume if it is not mounted."
def is_migration_needed(self):
try:
with ReadUserData() as userdata:
return "volumes" not in userdata
except Exception as e:
print(e)
return False
def migrate(self):
# Get info about existing volumes
# Write info about volumes to userdata.json
try:
volumes = BlockDevices().get_block_devices()
# If there is an unmounted volume sdb,
# Write it to userdata.json
is_there_a_volume = False
for volume in volumes:
if volume.name == "sdb":
is_there_a_volume = True
break
with WriteUserData() as userdata:
userdata["volumes"] = []
if is_there_a_volume:
userdata["volumes"].append(
{
"device": "/dev/sdb",
"mountPoint": "/volumes/sdb",
"fsType": "ext4",
}
)
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print("Done")
except Exception as e:
print(e)
print("Error mounting volume")