[Unit]
Description=Varnish HTTP accelerator logging daemon
After=network.target

[Service]
Type=forking
PIDFile=/run/varnishlog.pid
ExecStart=/usr/bin/varnishlog -a -w /var/log/varnish/varnish.log -D -P /run/varnishlog.pid

[Install]
WantedBy=multi-user.target