Docker/Django/Gunicorn/Nginx Websockets not connecting - django

Question

Dockerized Django chat app using gunicorn, nginx for reverse proxy (static files). I managed to get stuck trying to get the websockets to work, but I can't connect to daphne: daphne -p 8001 project.asgi:application. The app only says, "Connection refusesed for upstream localhost:8001". I'm using django-channels and redis and on local everything is working fine.
Am I missing something?
Here are some files:
nginx.conf
upstream project {
server web:8000;
}
upstream websocket {
server localhost:8001;
}
server {
listen 80;
location /ws/ {
proxy_pass http://websocket;
proxy_http_version 1.1;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "upgrade";
proxy_redirect off;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $server_name;
}
location / {
proxy_pass http://project;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host;
proxy_redirect off;
}
location /static/ {
alias /home/app/web/staticfiles/;
}
}
asgi.py
import os
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'project.settings')
from channels.routing import ProtocolTypeRouter, URLRouter
from django.core.asgi import get_asgi_application
django_asgi_app = get_asgi_application()
from channels.auth import AuthMiddlewareStack
import scrumboard.routing
application = ProtocolTypeRouter({
"http": django_asgi_app,
'websocket': AuthMiddlewareStack(
URLRouter(
scrumboard.routing.websocket_urlpatterns
)
)
})
settings.py
"""
Django settings for project project.
Generated by 'django-admin startproject' using Django 4.1.2.
For more information on this file, see
https://docs.djangoproject.com/en/4.1/topics/settings/
For the full list of settings and their values, see
https://docs.djangoproject.com/en/4.1/ref/settings/
"""
from pathlib import Path
import os
from decouple import config
# Build paths inside the project like this: BASE_DIR / 'subdir'.
from django.template.context_processors import media
BASE_DIR = Path(__file__).resolve().parent.parent
# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/4.1/howto/deployment/checklist/
SECRET_KEY = config("SECRET_KEY")
DEBUG = int(config("DEBUG", default=0))
# 'DJANGO_ALLOWED_HOSTS' should be a single string of hosts with a space between each.
# For example: 'DJANGO_ALLOWED_HOSTS=localhost 127.0.0.1 [::1]'
ALLOWED_HOSTS = config("DJANGO_ALLOWED_HOSTS").split(" ")
CSRF_TRUSTED_ORIGINS = ['http://localhost:1337']
CORS_ALLOWED_HOSTS = ['http://localhost:1337']
# Application definition
INSTALLED_APPS = [
'channels',
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'scrumboard',
'rest_framework'
]
ASGI_APPLICATION = 'project.asgi.application'
CHANNEL_LAYERS = {
'default': {
'BACKEND': 'channels_redis.core.RedisChannelLayer'
}
}
MIDDLEWARE = [
'django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
]
ROOT_URLCONF = 'project.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [],
'APP_DIRS': True,
'OPTIONS': {
'context_processors': [
'django.template.context_processors.debug',
'django.template.context_processors.request',
'django.contrib.auth.context_processors.auth',
'django.contrib.messages.context_processors.messages',
],
},
},
]
WSGI_APPLICATION = 'project.wsgi.application'
# Database
# https://docs.djangoproject.com/en/4.1/ref/settings/#databases
DATABASES = {
"default": {
"ENGINE": os.environ.get("SQL_ENGINE", "django.db.backends.sqlite3"),
"NAME": os.environ.get("SQL_DATABASE", BASE_DIR / "db.sqlite3"),
"USER": os.environ.get("SQL_USER", "user"),
"PASSWORD": os.environ.get("SQL_PASSWORD", "password"),
"HOST": os.environ.get("SQL_HOST", "localhost"),
"PORT": os.environ.get("SQL_PORT", "5432"),
}
}
# Password validation
# https://docs.djangoproject.com/en/4.1/ref/settings/#auth-password-validators
AUTH_PASSWORD_VALIDATORS = [
{
'NAME': 'django.contrib.auth.password_validation.UserAttributeSimilarityValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.MinimumLengthValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.CommonPasswordValidator',
},
{
'NAME': 'django.contrib.auth.password_validation.NumericPasswordValidator',
},
]
# Internationalization
# https://docs.djangoproject.com/en/4.1/topics/i18n/
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_TZ = True
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/4.1/howto/static-files/
STATIC_URL = 'static/'
STATIC_ROOT = BASE_DIR / "staticfiles"
# Default primary key field type
# https://docs.djangoproject.com/en/4.1/ref/settings/#default-auto-field
DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = 'smtp.gmail.com'
EMAIL_USE_TLS = True
EMAIL_PORT = 587
EMAIL_HOST_USER = ''
EMAIL_HOST_PASSWORD = ''
routing.py
from django.urls import re_path
from . import consumers
websocket_urlpatterns = [
re_path(r'ws/socket-server/', consumers.ChatConsumer.as_asgi())
]
docker-compose.yml
version: '3.8'
services:
web:
build:
context: .
dockerfile: Dockerfile.prod
command: gunicorn project.wsgi:application --bind 0.0.0.0:8000
volumes:
- static_volume:/home/app/web/staticfiles
expose:
- "8000:8000"
env_file:
- ./.env.prod
depends_on:
- db
container_name: "chat_app_prod"
db:
image: postgres
volumes:
- postgres_data:/var/lib/postgresql/data/
env_file:
- ./.env.prod.db
container_name: "db_prod"
nginx:
build: nginx
volumes:
- static_volume:/home/app/web/staticfiles
- ./nginx/chat-app-cert.pem:/etc/nginx/chat-app-cert.pem
- ./nginx/chat-app-key.pem:/etc/nginx/chat-app-key.pem
ports:
- "1337:80"
- "443:443"
depends_on:
- web
redis:
image: redis
ports:
- "6379:6379"
volumes:
postgres_data:
static_volume: