DJango + nginx + gunicorn: how to stop caching - django

Question

I am running Django 2.0 using gunicorn on nginx server. All my pages are not reflecting the changes immediately. How to stop caching
the below are my files:
nginx.conf
server {
listen 80;
server_name sample.com;
location = /favicon.ico { access_log off; log_not_found off; }
location /static/ {
root /home/testapp/testapp_project/test_artciles;
}
location /media/ {
root /home/testapp/testapp_project/test_artciles;
}
location / {
include proxy_params;
proxy_pass http://unix:/home/testapp/testapp_project/test_artciles.sock;
}
}
Django settings.py
import os
from django.contrib import messages
BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
SECRET_KEY = 'ssdjhasjdkhjaskdhkajsdhkjasdhkjh'
DEBUG = True
ALLOWED_HOSTS = ['xx.xxx.xx.xxx','127.0.0.1']
INSTALLED_APPS = (
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'django.contrib.humanize',
'django_extensions',
# local apps
'articles',
'fcm_django',
'corsheaders',
'rest_framework',
)
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 = 'webarticles.urls'
TEMPLATES = [
{
'BACKEND': 'django.template.backends.django.DjangoTemplates',
'DIRS': [os.path.join(os.path.join(BASE_DIR, 'templates')),
],
'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 = 'webarticles.wsgi.application'
DATABASES = {
'default': {
'ENGINE': 'django.db.backends.sqlite3',
'NAME': os.path.join(BASE_DIR, 'test.sqlite3'),
}
}
LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'Asia/Kolkata'
USE_I18N = True
USE_L10N = True
USE_TZ =True
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',
},
]
# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.8/howto/static-files/
STATIC_URL = '/static/'
MEDIA_URL = '/media/'
MEDIA_ROOT = os.path.join(BASE_DIR, 'media')
STATIC_ROOT = os.path.join(BASE_DIR, 'static')
STATICFILES_DIRS = (
os.path.join(BASE_DIR, 'frontend'),
)
CORS_ORIGIN_WHITELIST = ('xx.xxx.xx.xxx','127.0.0.1')
I am sure its something to do with the server because when i ran this code in localhost on my own laptop before transferring to server, things are reflecting immediately.

Answer 1

You should restart gunicorn to update working version after you changed code on server:
sudo systemctl restart gunicorn
or you can use --reload mode that will update gunicorn once code changed:
gunicorn --workers=2 test:app --reload
You can read about it on docs https://docs.gunicorn.org/en/stable/settings.html#reload

Answer 2

If you are talking about server caching, then here are the steps worked for me:
My implementation details are
gunicorn 19.9.0,
Django 1.11.16,
nginx version: nginx/1.10.3,
Os (Ubuntu)
Gunicorn is not caching already unless you have installed and enabled https://pypi.org/project/gunicorn_cache/
Disabling django caching,
from django.views.decorators.cache import never_cache
#never_cache
def generating the cached data/results():
Disabling ngnix caching
location todisablecaching {
proxy_no_cache 1;
proxy_cache_bypass 1;
...
}
https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_no_cache,
https://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_bypass
I hope it work for you as well.