rebootd

rebootd - A simple reboot daemon for Linux

rebootd is a simple reboot daemon for Linux. It is meant to be run as a systemd service and will reboot the system if the network is unreachable for too many consecutive checks (failed to GET a comma-separated list of URLs — default: https://www.google.com,https://www.cloudflare.com,https://www.amazon.com).

Recovery ladder

On each consecutive failed check, rebootd escalates its repair attempts before resorting to a reboot:

Attempt 3 uses nmcli connection add with connection.autoconnect yes, connection.autoconnect-priority 100, and connection.autoconnect-retries 0 to ensure the new profile reconnects reliably after a reboot.

It checks connectivity every 15 minutes; after a failure it retries every 5 minutes.

Use case

Remote servers that are not reachable and need to be rebooted. This is a simple solution to reboot the server if it's not reachable.

Installation

1. Clone the repository
2. Run make install to install the service
3. Enjoy

Options

✗ ./rebootd --help
Usage:
  rebootd [OPTIONS]

Application Options:
      --dbg             show debug info [$DEBUG]
  -v                    Show version and exit
  -a=                   Number of failed attempts allowed before reboot (default: 5)
      --address=        Address list to check - comma separated (default: https://www.google.com,https://www.cloudflare.com,https://www.amazon.com)
  -i, --interval=       Interval between checks (default: 15m) [$INTERVAL]
  -r, --retry-interval= Interval between checks after failed attempt (default: 5m) [$RETRY_INTERVAL]

Help Options:
  -h, --help            Show this help message

Logs

The service writes logs to /var/log/rebootd.log (as configured in rebootd.service):

tail -f /var/log/rebootd.log

Logs are also available via journald:

journalctl -u rebootd -f

Uninstall

Run make uninstall to remove the service.