Running django channels with daphne on systemd

Question

First of all, sorry for the long question, I hope a few of you have patience for this.

TL; DR: How do I load django settings correctly in systemd?

I am fol

Answer 1

I've just deployed my django channel app, and the following systemd service file worked for me without using supervisor:

/etc/systemd/system/django-channels-daphne.service

[Unit]
Description=daphne server script for my project
After=network.target

[Service]
User=webuser
Group=webuser
WorkingDirectory=/path/to/myproject
Environment=DJANGO_SECRET_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Environment=DJANGO_ALLOWED_HOSTS=myapp.chatbot.ai
ExecStart=/path/to/python/virtualenv/bin/daphne -b 0.0.0.0 -p 8000 myproject.asgi:channel_layer
Restart=always

[Install]
WantedBy=multi-user.target

/etc/systemd/system/django-channels-runworker.service

[Unit]
Description=python runworker server for myproject
After=network.target

[Service]
User=webuser
Group=webuser
WorkingDirectory=/path/to/myproject
Environment=DJANGO_SECRET_KEY=xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Environment=DJANGO_ALLOWED_HOSTS=myapp.chatbot.ai
ExecStart=/path/to/python/virtualenv/bin/python /path/to/myproject/manage.py runworker --threads 4 
Restart=always

[Install]
WantedBy=multi-user.target

/path/to/myproject/myproject/asgi.py

import os
import channels

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "myproject.settings")
channel_layer = channels.asgi.get_channel_layer()

Some lines in /path/to/myproject/myproject/settings.py:

ALLOWED_HOSTS = [os.environ['DJANGO_ALLOWED_HOSTS']]
SECRET_KEY = os.environ['DJANGO_SECRET_KEY']