DJango + nginx + gunicorn：如何停止缓存

Question

我在 nginx 服务器上使用 gunicorn 运行 Django 2.0。我所有的页面都没有立即反映这些变化。如何停止缓存

以下是我的文件：

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 设置.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')

我确信它与服务器有关，因为当我在转移到服务器之前在自己的笔记本电脑上的 localhost 中运行此代码时，事情会立即反映出来。

Answer 1

如果您在谈论服务器缓存，那么以下是对我有用的步骤：

1. 我的实现细节是

gunicorn         19.9.0,
Django           1.11.16,
nginx version: nginx/1.10.3,
Os (Ubuntu)   

1. Gunicorn 尚未缓存，除非您已安装并启用 https://pypi.org/project/gunicorn_cache/

2. 禁用 django 缓存，

from django.views.decorators.cache import never_cache


@never_cache
def generating the cached data/results():

4. 禁用 ngnix 缓存

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

我希望它也对你有用。

Answer 2

更改服务器上的代码后，您应该重新启动 gunicorn 以更新工作版本：

sudo systemctl restart gunicorn

或者您可以使用 --reload 模式，一旦代码更改，该模式将更新 gunicorn：

gunicorn --workers=2 test:app --reload

您可以在文档https://docs.gunicorn.org/en/stable/settings.html#reload 上阅读有关它的信息