Making use of systemd socket notification feature added in
ff270e6d5.
--- /dev/null
+[Unit]
+Description=Collectd
+After=local-fs.target network.target
+Requires=local-fs.target network.target
+
+[Service]
+ExecStart=/usr/sbin/collectd
+
+# Tell systemd it will receive a notification from collectd over it's control
+# socket once the daemon is ready. See systemd.service(5) for more details.
+Type=notify
+NotifyAccess=main
+
+# Restart the collectd daemon after a 10 seconds delay, in case it crashes.
+Restart=always
+RestartSec=10
+
+# Send all console messages to syslog.
+StandardOutput=syslog
+StandardError=syslog
+
+[Install]
+WantedBy=multi-user.target