selfprivacy-rest-api/selfprivacy_api/jobs/migrate_to_binds.py

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"""Function to perform migration of app data to binds."""
import subprocess
import pathlib
import shutil
from pydantic import BaseModel
from selfprivacy_api.jobs import Job, JobStatus, Jobs
from selfprivacy_api.services.bitwarden import Bitwarden
from selfprivacy_api.services.gitea import Gitea
from selfprivacy_api.services.mailserver import MailServer
from selfprivacy_api.services.nextcloud import Nextcloud
from selfprivacy_api.services.pleroma import Pleroma
from selfprivacy_api.utils import ReadUserData, WriteUserData
from selfprivacy_api.utils.huey import huey
from selfprivacy_api.utils.block_devices import BlockDevices
class BindMigrationConfig(BaseModel):
"""Config for bind migration.
For each service provide block device name.
"""
email_block_device: str
bitwarden_block_device: str
gitea_block_device: str
nextcloud_block_device: str
pleroma_block_device: str
def is_bind_migrated() -> bool:
"""Check if bind migration was performed."""
with ReadUserData() as user_data:
return user_data.get("useBinds", False)
def activate_binds(config: BindMigrationConfig):
"""Activate binds."""
# Activate binds in userdata
with WriteUserData() as user_data:
if "email" not in user_data:
user_data["email"] = {}
user_data["email"]["location"] = config.email_block_device
if "bitwarden" not in user_data:
user_data["bitwarden"] = {}
user_data["bitwarden"]["location"] = config.bitwarden_block_device
if "gitea" not in user_data:
user_data["gitea"] = {}
user_data["gitea"]["location"] = config.gitea_block_device
if "nextcloud" not in user_data:
user_data["nextcloud"] = {}
user_data["nextcloud"]["location"] = config.nextcloud_block_device
if "pleroma" not in user_data:
user_data["pleroma"] = {}
user_data["pleroma"]["location"] = config.pleroma_block_device
user_data["useBinds"] = True
def move_folder(
data_path: pathlib.Path, bind_path: pathlib.Path, user: str, group: str
):
"""Move folder from data to bind."""
if data_path.exists():
shutil.move(str(data_path), str(bind_path))
else:
return
data_path.mkdir(mode=0o750, parents=True, exist_ok=True)
shutil.chown(str(bind_path), user=user, group=group)
shutil.chown(str(data_path), user=user, group=group)
subprocess.run(["mount", "--bind", str(bind_path), str(data_path)], check=True)
subprocess.run(["chown", "-R", f"{user}:{group}", str(data_path)], check=True)
@huey.task()
def migrate_to_binds(config: BindMigrationConfig, job: Job):
"""Migrate app data to binds."""
# Exit if migration is already done
if is_bind_migrated():
Jobs.update(
job=job,
status=JobStatus.ERROR,
error="Migration already done.",
)
return
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=0,
status_text="Checking if all volumes are available.",
)
# Get block devices.
block_devices = BlockDevices().get_block_devices()
block_device_names = [device.name for device in block_devices]
# Get all unique required block devices
required_block_devices = []
for block_device_name in config.__dict__.values():
if block_device_name not in required_block_devices:
required_block_devices.append(block_device_name)
# Check if all block devices from config are present.
for block_device_name in required_block_devices:
if block_device_name not in block_device_names:
Jobs.update(
job=job,
status=JobStatus.ERROR,
error=f"Block device {block_device_name} not found.",
)
return
# Make sure all required block devices are mounted.
# sda1 is the root partition and is always mounted.
for block_device_name in required_block_devices:
if block_device_name == "sda1":
continue
block_device = BlockDevices().get_block_device(block_device_name)
if block_device is None:
Jobs.update(
job=job,
status=JobStatus.ERROR,
error=f"Block device {block_device_name} not found.",
)
return
if f"/volumes/{block_device_name}" not in block_device.mountpoints:
Jobs.update(
job=job,
status=JobStatus.ERROR,
error=f"Block device {block_device_name} not mounted.",
)
return
# Make sure /volumes/sda1 exists.
pathlib.Path("/volumes/sda1").mkdir(parents=True, exist_ok=True)
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=5,
status_text="Activating binds in NixOS config.",
)
activate_binds(config)
# Perform migration of Nextcloud.
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=10,
status_text="Migrating Nextcloud.",
)
Nextcloud().stop()
move_folder(
data_path=pathlib.Path("/var/lib/nextcloud"),
bind_path=pathlib.Path(f"/volumes/{config.nextcloud_block_device}/nextcloud"),
user="nextcloud",
group="nextcloud",
)
# Start Nextcloud
Nextcloud().start()
# Perform migration of Bitwarden
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=28,
status_text="Migrating Bitwarden.",
)
Bitwarden().stop()
move_folder(
data_path=pathlib.Path("/var/lib/bitwarden"),
bind_path=pathlib.Path(f"/volumes/{config.bitwarden_block_device}/bitwarden"),
user="vaultwarden",
group="vaultwarden",
)
move_folder(
data_path=pathlib.Path("/var/lib/bitwarden_rs"),
bind_path=pathlib.Path(
f"/volumes/{config.bitwarden_block_device}/bitwarden_rs"
),
user="vaultwarden",
group="vaultwarden",
)
# Start Bitwarden
Bitwarden().start()
# Perform migration of Gitea
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=46,
status_text="Migrating Gitea.",
)
Gitea().stop()
move_folder(
data_path=pathlib.Path("/var/lib/gitea"),
bind_path=pathlib.Path(f"/volumes/{config.gitea_block_device}/gitea"),
user="gitea",
group="gitea",
)
Gitea().start()
# Perform migration of Mail server
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=64,
status_text="Migrating Mail server.",
)
MailServer().stop()
move_folder(
data_path=pathlib.Path("/var/vmail"),
bind_path=pathlib.Path(f"/volumes/{config.email_block_device}/vmail"),
user="virtualMail",
group="virtualMail",
)
move_folder(
data_path=pathlib.Path("/var/sieve"),
bind_path=pathlib.Path(f"/volumes/{config.email_block_device}/sieve"),
user="virtualMail",
group="virtualMail",
)
MailServer().start()
# Perform migration of Pleroma
Jobs.update(
job=job,
status=JobStatus.RUNNING,
progress=82,
status_text="Migrating Pleroma.",
)
Pleroma().stop()
move_folder(
data_path=pathlib.Path("/var/lib/pleroma"),
bind_path=pathlib.Path(f"/volumes/{config.pleroma_block_device}/pleroma"),
user="pleroma",
group="pleroma",
)
move_folder(
data_path=pathlib.Path("/var/lib/postgresql"),
bind_path=pathlib.Path(f"/volumes/{config.pleroma_block_device}/postgresql"),
user="postgres",
group="postgres",
)
Pleroma().start()
Jobs.update(
job=job,
status=JobStatus.FINISHED,
progress=100,
status_text="Migration finished.",
result="Migration finished.",
)
def start_bind_migration(config: BindMigrationConfig) -> Job:
"""Start migration."""
job = Jobs.add(
type_id="migrations.migrate_to_binds",
name="Migrate to binds",
description="Migration required to use the new disk space management.",
)
migrate_to_binds(config, job)
return job