systemd

Documentation

Overview

Package systemd contains a minimal wrapper around systemd-notify to enable applications to signal readiness and status to systemd.

This package will only have effect on Linux systems running Tailscale in a systemd unit with the Type=notify flag set. On other operating systems (or when running in a Linux distro without being run from inside systemd) this package will become a no-op.

Index

• func Ready()
• func Status(format string, args ...any)

Functions

func Ready

func Ready()

Ready signals readiness to systemd. This will unblock service dependents from starting.

func Status

func Status(format string, args ...any)

Status sends a single line status update to systemd so that information shows up in systemctl output. For example:

$ systemctl status tailscale
● tailscale.service - Tailscale client daemon
Loaded: loaded (/nix/store/qc312qcy907wz80fqrgbbm8a9djafmlg-unit-tailscale.service/tailscale.service; enabled; vendor preset: enabled)
Active: active (running) since Tue 2020-11-24 17:54:07 EST; 13h ago
Main PID: 26741 (.tailscaled-wra)
Status: "Connected; user@host.domain.tld; 100.101.102.103"
IP: 0B in, 0B out
Tasks: 22 (limit: 4915)
Memory: 30.9M
CPU: 2min 38.469s
CGroup: /system.slice/tailscale.service
└─26741 /nix/store/sv6cj4mw2jajm9xkbwj07k29dj30lh0n-tailscale-date.20200727/bin/tailscaled --port 41641