[Unit]
Description=left4me server instance %i
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=left4me
Group=left4me
EnvironmentFile=/etc/left4me/host.env
EnvironmentFile=/var/lib/left4me/instances/%i/instance.env
WorkingDirectory=/var/lib/left4me/runtime/%i/merged/left4dead2
ExecStart=/var/lib/left4me/installation/srcds_run -game left4dead2 +hostport ${L4D2_PORT} $L4D2_ARGS
Restart=on-failure
RestartSec=5
NoNewPrivileges=true
PrivateTmp=true
PrivateDevices=true
ProtectHome=true
ProtectSystem=strict
ReadOnlyPaths=/var/lib/left4me/installation /var/lib/left4me/overlays
ReadWritePaths=/var/lib/left4me/runtime/%i
RestrictSUIDSGID=true
LockPersonality=true

[Install]
WantedBy=multi-user.target