当 DEBUG=False 时服务器错误 500答案

【问题标题】：Server Error 500 when DEBUG=False当 DEBUG=False 时服务器错误 500
【发布时间】：2018-03-20 00:32:48
【问题描述】：

我正在尝试使用 Django 将 Web 应用程序部署到 Heroku。我可以很好地在本地运行该应用程序，但是当我尝试使用 DEBUG = False 实时加载它时，我收到服务器 500 错误。如果我将设置更改为DEBUG = True，它可以工作。我将不胜感激。

编辑： I found a thread 帮助我获得了错误的电子邮件版本，即Missing staticfiles manifest entry for 'home/css/bootswatch.css'。所以现在我担心的是静态文件配置不正确，但我不知道如何修复它们。我正在使用这个default django/heroku template 并禁用collectstatic - 我必须这样做才能部署应用程序。这可能是问题吗？我不记得我必须运行的确切命令，但基本上 heroku 告诉我它无法部署应用程序，直到我禁用 collectstatic。

*新编辑： Thanks to this thread，我意识到我必须删除我禁用的 collectstatic 配置变量，然后再次尝试构建。没用。错误让我意识到初始模板附带的默认静态文件必须在设置模块中。做到了，推动 - 仍然没有工作。回溯显示我的字体很棒的 css 文件有问题。删除了文件，改为添加了 CDN，推送并繁荣。现场工作。我希望这对将来的其他人有所帮助。

错误日志

2017-10-08T19:33:03.000000+00:00 app[api]: Build started by user me@email.com
2017-10-08T19:33:19.148973+00:00 heroku[web.1]: Restarting
2017-10-08T19:33:19.149620+00:00 heroku[web.1]: State changed from up to starting
2017-10-08T19:33:19.717815+00:00 heroku[web.1]: Stopping all processes with SIGTERM
2017-10-08T19:33:19.732436+00:00 app[web.1]: [2017-10-08 19:33:19 +0000] [4] [INFO] Handling signal: term
2017-10-08T19:33:19.732487+00:00 app[web.1]: [2017-10-08 19:33:19 +0000] [8] [INFO] Worker exiting (pid: 8)
2017-10-08T19:33:19.732716+00:00 app[web.1]: [2017-10-08 19:33:19 +0000] [9] [INFO] Worker exiting (pid: 9)
2017-10-08T19:33:19.833095+00:00 app[web.1]: [2017-10-08 19:33:19 +0000] [4] [INFO] Shutting down: Master
2017-10-08T19:33:20.012423+00:00 heroku[web.1]: Process exited with status 0
2017-10-08T19:33:18.676112+00:00 app[api]: Release v30 created by user me@email.com
2017-10-08T19:33:18.676112+00:00 app[api]: Deploy 8f625678 by user me@email.com
2017-10-08T19:33:03.000000+00:00 app[api]: Build succeeded
2017-10-08T19:33:29.936137+00:00 heroku[web.1]: Starting process with command `gunicorn portfolio.wsgi`
2017-10-08T19:33:32.419548+00:00 app[web.1]: [2017-10-08 19:33:32 +0000] [4] [INFO] Starting gunicorn 19.6.0
2017-10-08T19:33:32.420072+00:00 app[web.1]: [2017-10-08 19:33:32 +0000] [4] [INFO] Listening at: http://0.0.0.0:23534 (4)
2017-10-08T19:33:32.420207+00:00 app[web.1]: [2017-10-08 19:33:32 +0000] [4] [INFO] Using worker: sync
2017-10-08T19:33:32.424142+00:00 app[web.1]: [2017-10-08 19:33:32 +0000] [8] [INFO] Booting worker with pid: 8
2017-10-08T19:33:32.523409+00:00 app[web.1]: [2017-10-08 19:33:32 +0000] [9] [INFO] Booting worker with pid: 9
2017-10-08T19:33:33.592588+00:00 heroku[web.1]: State changed from starting to up
2017-10-08T19:33:33.991800+00:00 heroku[router]: at=info method=GET path="/" host=myproject.herokuapp.com request_id=89d87c81-0ab1-4b
2e-8705-43ef55710082 fwd="my.public.ip.address" dyno=web.1 connect=0ms service=225ms status=500 bytes=234 protocol=https
2017-10-08T19:33:36.569500+00:00 heroku[router]: at=info method=GET path="/" host=myproject.herokuapp.com request_id=cb8ea686-89ba-44
0f-8e66-0c3258c2de92 fwd="my.public.ip.address" dyno=web.1 connect=0ms service=42ms status=500 bytes=234 protocol=https

文件夹结构：

项目
- 应用程序
- 应用程序
- 项目
  - 设置
    - __ 初始化 __.py
    - base_settings.py
    - local_settings.py
    - production_settings.py
  - manage.py

__ 初始化 __.py

from .base_settings import *
from .production_settings import *

try:
    from .local_settings import *
except:
    pass

base_settings.py

import os, dj_database_url

BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
PROJECT_ROOT = os.path.dirname(os.path.abspath(__file__))

DEBUG = ""


INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    # Disable Django's own staticfiles handling in favour of WhiteNoise, for
    # greater consistency between gunicorn and `./manage.py runserver`. See:
    # http://whitenoise.evans.io/en/stable/django.html#using-whitenoise-in-development
    'whitenoise.runserver_nostatic',
    'django.contrib.staticfiles',
    'app ',
    'app',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    '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',
            ],
            'debug': DEBUG,
        },
    },
]

WSGI_APPLICATION = 'project.wsgi.application'


DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.sqlite3',
        'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
    }
}

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',
    },
]


LANGUAGE_CODE = 'en-us'
TIME_ZONE = 'UTC'
USE_I18N = True
USE_L10N = True
USE_TZ = True

# Change 'default' database configuration with $DATABASE_URL.
DATABASES['default'].update(dj_database_url.config(conn_max_age=500))

# Honor the 'X-Forwarded-Proto' header for request.is_secure()
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')

# Allow all host headers
ALLOWED_HOSTS = ['myproject.herokuapp.com', 'localhost']

# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/1.11/howto/static-files/

STATIC_ROOT = os.path.join(PROJECT_ROOT, 'staticfiles')
STATIC_URL = '/static/'

# Extra places for collectstatic to find static files.
STATICFILES_DIRS = [
    os.path.join(PROJECT_ROOT, 'static'),
]

# Simplified static file serving.
# https://warehouse.python.org/project/whitenoise/
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'

local_settings.py

from .base_settings import *

SECRET_KEY = 'mysecretkey'

DEBUG = True

production_settings.py

from .base_settings import *

SECRET_KEY = os.environ.get('SECRET_KEY')

DEBUG = False

【问题讨论】：

标签： python django heroku deployment

【解决方案1】：

我知道的唯一问题是DEBUG = False 是ALLOWED_HOSTS 设置。关闭 DEBUG 后，Django 将根据列表检查您的主机名，如果主机不在允许列表中，则会拒绝请求。

它通常会导致 400，但如果遇到进一步的问题可以给出 500： Django allowed hosts with port number

【讨论】：

【解决方案2】：

Thanks to this thread，我意识到我必须删除我禁用的 collectstatic 配置变量，然后再次尝试构建。没用。错误让我意识到初始模板附带的默认静态文件必须在设置模块中。做到了，推动 - 仍然没有工作。回溯显示我的字体很棒的 css 文件有问题。删除了文件，改为添加了 CDN，推送并繁荣。现场工作。我希望这对将来的其他人有所帮助。

【讨论】：