Enable non-root port 80 via systemd

docs/setup.rst

@@ -409,6 +409,10 @@ writing. Windows is not and will never be supported.
     ``consumer`` script to watch the input folder, and the ``scheduler``
     script to run tasks such as email checking and document consumption.
 
+		The ``socket`` script enables ``gunicorn`` to run on port 80 without
+		root privileges. For this you need to uncomment the ``Require=paperless-webserver.socket``
+		in the ``webserver`` script and configure ``gunicorn`` to listen on port 80 (see ``paperless/gunicorn.conf.py``).
+
     You may need to adjust the path to the ``gunicorn`` executable. This
     will be installed as part of the python dependencies, and is either located
     in the ``bin`` folder of your virtual environment, or in ``~/.local/bin/`` if

scripts/paperless-webserver.service

@@ -3,6 +3,7 @@ Description=Paperless webserver
 After=network.target
 Wants=network.target
 Requires=redis.service
+#Requires=paperless-webserver.socket
 
 [Service]
 User=paperless

scripts/paperless-webserver.socket

@@ -0,0 +1,9 @@
+[Unit]
+Description=Paperless Webserver Socket
+
+[Socket]
+ListenStream=80
+NoDelay=true
+
+[Install]
+WantedBy=sockets.target