Web Application Setup - uWSGI Set Up

September 2, 2019 • webapp server python uwsgi

Set Up uWSGI To Server Your Application

Create your uWSGI configuration file:

... touch /var/www/appname/config/uwsgi-appname.ini

Contents of your uwsgi-appname.ini should look like this:

[uwsgi]

plugins = python3,logfile

chdir = /var/www/appname
home = /var/www/appname/venv
wsgi-file = /var/www/appname/wsgi.py

master = True 
cheap = True
idle = 600
die-on-idle = True
manage-script-name = True

Link your config file so uwsgi can find it:

... cd /etc/uwsgi/apps-enabled
... ln -s /var/www/appname/config/uwsgi-appname.ini appname.ini

SYSTEMD UWSGI SET UP

Create systemd socket and server files for your uwsgi app:
```
... touch uwsgi@appname.socket
... touch uwsgi@appname.service
```
The content of these files are generic - for additional apps these could be copied or linked with the new app name (e.g. uwsgi@appname2.socket). Systemd will will interpolate the conent between the @ and . in the file/link name with the %i directive in the files.

Your uwsgi@appname.socket file:

[Unit]
Description=Socket for uWSGI app %i

[Socket]
ListenStream=/var/run/uwsgi/%i.socket
SocketUser=www-%i
SocketGroup=www-data
SocketMode=0660

[Install]
WantedBy=sockets.target

Your uwsgi@appname.service file:

[Unit]
Description=%i uWSGI app
After=syslog.target

[Service]
ExecStart=/usr/bin/uwsgi \
        --ini /etc/uwsgi/apps-enabled/uwsgi-%i.ini \
        --socket /var/run/uwsgi/%i.socket
User=www-%i
Group=www-data
Restart=on-failure
KillSignal=SIGQUIT
Type=notify
StandardError=syslog
NotifyAccess=all

Link these files to the systemd config directory:

... cd /etc/systemd/system
... ln -s /var/www/appname/config/uwsgi@appname.socket ./
... ln -s /var/www/appname/config/uwsgi@appname.service ./

Start up uWSGI:

... sudo systemctl enable uwsgi@appname.socket
... sudo systemctl enable uwsgi@appname.service
... sudo systemctl start uwsgi@appname.socket