Merge pull request #3363 from mtmail/docs-link-correction

[nominatim.git] / docs / admin / Deployment-Python.md

diff --git a/docs/admin/Deployment-Python.md b/docs/admin/Deployment-Python.md
index c3cca59b82998a2211c108d9c425f6829d213fbb..e95df00dbe235341a3e2c5434880f67426b73360 100644 (file)
--- a/docs/admin/Deployment-Python.md
+++ b/docs/admin/Deployment-Python.md
@@ -24,8 +24,8 @@ to configure it.
 ### Installing the required packages
 
 The recommended way to deploy a Python ASGI application is to run
-the ASGI runner (uvicorn)[https://uvicorn.org/]
-together with (gunicorn)[https://gunicorn.org/] HTTP server. We use
+the ASGI runner [uvicorn](https://uvicorn.org/)
+together with [gunicorn](https://gunicorn.org/) HTTP server. We use
 Falcon here as the web framework.
 
 Create a virtual environment for the Python packages and install the necessary
@@ -34,7 +34,7 @@ dependencies:
 ``` sh
 sudo apt install virtualenv
 virtualenv /srv/nominatim-venv
-/srv/nominatim-venv/bin/pip install SQLAlchemy PyICU psycopg[binary]\
+/srv/nominatim-venv/bin/pip install SQLAlchemy PyICU psycopg[binary] \
    psycopg2-binary python-dotenv PyYAML falcon uvicorn gunicorn
 ```
 
@@ -43,6 +43,22 @@ virtualenv /srv/nominatim-venv
 Next you need to set up the service that runs the Nominatim frontend. This is
 easiest done with a systemd job.
 
+First you need to tell systemd to create a socket file to be used by
+hunicorn. Create the following file `/etc/systemd/system/nominatim.socket`:
+
+``` systemd
+[Unit]
+Description=Gunicorn socket for Nominatim
+
+[Socket]
+ListenStream=/run/nominatim.sock
+SocketUser=www-data
+
+[Install]
+WantedBy=multi-user.target
+```
+
+Now you can add the systemd service for Nominatim itself.
 Create the following file `/etc/systemd/system/nominatim.service`:
 
 ``` systemd
@@ -74,12 +90,14 @@ its own Python process using
 [`NOMINATIM_API_POOL_SIZE`](../customize/Settings.md#nominatim_api_pool_size)
 connections to the database to serve requests in parallel.
 
-Make the new service known to systemd and start it:
+Make the new services known to systemd and start it:
 
 ``` sh
 sudo systemctl daemon-reload
-sudo systemctl enable nominatim
-sudo systemctl start nominatim
+sudo systemctl enable nominatim.socket
+sudo systemctl start nominatim.socket
+sudo systemctl enable nominatim.service
+sudo systemctl start nominatim.service
 ```
 
 This sets the service up, so that Nominatim is automatically started