Maintenance

You will need to perform some minimal maintenance procedures to ensure that the system continues to operate securely.

OS updates

For security purposes, it is important to maintain up-to-date software. To update packages in NixOS run

sudo nixos-rebuild switch --upgrade

Alternatively, we can setup automatic updates by adding the following snippet to our configuration.nix.

system.autoUpgrade = {
  enable = true;
  allowReboot = false;  # Setting to false otherwise we'll need to manually start the server.
  dates = "02:00";
  randomizedDelaySec = "45min";
};

Important

This may cause failures when you least expect it. If you experience an issue after an update, you can roll back to a previous build with nixos-rebuild --rollback switch. You can read more about nixos-rebuild commands here.

Check backup logs

Periodically check the backup logs to ensure that the backup application is still working. Run the following command and check that the last log is successful and within 24 hours.

journalctl -eu immich-backup.service