add systemd example

README.md

@@ -39,3 +39,47 @@ duckduckgo.com
 1.2.3.4
 ```
 * see also: [my personal asset](https://codeberg.org/postscriptum/psocks-list)
+
+### systemd
+
+``` bash
+git clone https://codeberg.org/postscriptum/psocks.git
+cd psocks
+cargo build --release --locked
+sudo install target/release/psocks /usr/local/bin
+sudo useradd -s /usr/sbin/nologin -Mr psocks
+sudo mkdir /var/lib/psocks && sudo chown psocks:psocks /var/lib/psocks
+sudo mkdir /var/log/psocks && sudo chown psocks:psocks /var/log/psocks
+```
+
+``` /etc/systemd/system/psocks.service
+#/etc/systemd/system/psocks.service
+
+[Unit]
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+User=psocks
+Group=psocks
+
+WorkingDirectory=/var/lib/psocks
+ExecStart=/usr/local/bin/psocks \
+              -a=https://codeberg.org/postscriptum/psocks-list/raw/branch/main/allow/internet.txt \
+              -c=/var/lib/psocks/cache.txt \
+              no-auth
+
+Restart=always
+
+Environment="RUST_LOG=warn"
+Environment="NO_COLOR=1"
+
+StandardOutput=file:///var/log/psocks/debug.log
+StandardError=file:///var/log/psocks/error.log
+
+[Install]
+WantedBy=multi-user.target
+```
+* `sudo systemctl restart psocks`
+* `sudo systemctl enable psocks`
+* `sudo systemctl status psocks`