104 lines
4.2 KiB
Python
104 lines
4.2 KiB
Python
"""Function to perform migration of app data to binds."""
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import subprocess
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import psutil
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import pathlib
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import shutil
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from selfprivacy_api.services.nextcloud import Nextcloud
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from selfprivacy_api.utils import WriteUserData
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from selfprivacy_api.utils.block_devices import BlockDevices
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class BindMigrationConfig:
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"""Config for bind migration.
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For each service provide block device name.
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"""
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email_block_device: str
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bitwarden_block_device: str
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gitea_block_device: str
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nextcloud_block_device: str
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pleroma_block_device: str
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def migrate_to_binds(config: BindMigrationConfig):
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"""Migrate app data to binds."""
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# Get block devices.
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block_devices = BlockDevices().get_block_devices()
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block_device_names = [ device.name for device in block_devices ]
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# Get all unique required block devices
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required_block_devices = []
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for block_device_name in config.__dict__.values():
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if block_device_name not in required_block_devices:
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required_block_devices.append(block_device_name)
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# Check if all block devices from config are present.
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for block_device_name in required_block_devices:
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if block_device_name not in block_device_names:
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raise Exception(f"Block device {block_device_name} is not present.")
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# Make sure all required block devices are mounted.
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# sda1 is the root partition and is always mounted.
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for block_device_name in required_block_devices:
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if block_device_name == "sda1":
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continue
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block_device = BlockDevices().get_block_device(block_device_name)
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if block_device is None:
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raise Exception(f"Block device {block_device_name} is not present.")
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if f"/volumes/{block_device_name}" not in block_device.mountpoints:
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raise Exception(f"Block device {block_device_name} is not mounted.")
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# Activate binds in userdata
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with WriteUserData() as user_data:
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if "email" not in user_data:
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user_data["email"] = {}
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user_data["email"]["block_device"] = config.email_block_device
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if "bitwarden" not in user_data:
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user_data["bitwarden"] = {}
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user_data["bitwarden"]["block_device"] = config.bitwarden_block_device
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if "gitea" not in user_data:
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user_data["gitea"] = {}
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user_data["gitea"]["block_device"] = config.gitea_block_device
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if "nextcloud" not in user_data:
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user_data["nextcloud"] = {}
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user_data["nextcloud"]["block_device"] = config.nextcloud_block_device
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if "pleroma" not in user_data:
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user_data["pleroma"] = {}
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user_data["pleroma"]["block_device"] = config.pleroma_block_device
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user_data["useBinds"] = True
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# Make sure /volumes/sda1 exists.
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pathlib.Path("/volumes/sda1").mkdir(parents=True, exist_ok=True)
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# Perform migration of Nextcloud.
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# Data is moved from /var/lib/nextcloud to /volumes/<block_device_name>/nextcloud.
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# /var/lib/nextcloud is removed and /volumes/<block_device_name>/nextcloud is mounted as bind mount.
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# Turn off Nextcloud
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Nextcloud().stop()
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# Move data from /var/lib/nextcloud to /volumes/<block_device_name>/nextcloud.
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# /var/lib/nextcloud is removed and /volumes/<block_device_name>/nextcloud is mounted as bind mount.
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nextcloud_data_path = pathlib.Path("/var/lib/nextcloud")
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nextcloud_bind_path = pathlib.Path(f"/volumes/{config.nextcloud_block_device}/nextcloud")
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if nextcloud_data_path.exists():
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shutil.move(str(nextcloud_data_path), str(nextcloud_bind_path))
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else:
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raise Exception("Nextcloud data path does not exist.")
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# Make sure folder /var/lib/nextcloud exists.
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nextcloud_data_path.mkdir(mode=0o750, parents=True, exist_ok=True)
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# Make sure this folder is owned by user nextcloud and group nextcloud.
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shutil.chown(nextcloud_bind_path, user="nextcloud", group="nextcloud")
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shutil.chown(nextcloud_data_path, user="nextcloud", group="nextcloud")
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# Mount nextcloud bind mount.
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subprocess.run(["mount","--bind", str(nextcloud_bind_path), str(nextcloud_data_path)], check=True)
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# Recursively chown all files in nextcloud bind mount.
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subprocess.run(["chown", "-R", "nextcloud:nextcloud", str(nextcloud_data_path)], check=True)
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# Start Nextcloud
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Nextcloud().start()
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