What do this branch?

1. now possible use custom mixin simple declare list of you mixins in settings:

DOWNTIME_MIXIN = ['utils.utility.downtime_mixin', ]  # custom list of you mixins
DOWNTIME_NODATABASE_MODE = True  # Dont use DataBase for check maintance mode

where in you project present app named 'utils.utility' and function downtime_mixin

from real project:

def downtime_mixin(self_object, request):
    result = request.user.is_superuser
    if not result:
        api_key = request.GET.get('api_key')
        setting_api_key = getattr(settings, 'DOWNTIME_ADTIONAL_API_KEY', None)
        result = api_key == setting_api_key
    return not result

I use Django Rest Framework, and stay possible to use API for maintenance works, so i just declare in settings.py DOWNTIME_ADTIONAL_API_KEY variable and use this for allow requests. Too i use check request super user. This can be possible only if append downtime.middleware.DowntimeMiddleware to end of the list MIDDLEWARE. 2. Also introduce new variable DOWNTIME_NODATABASE_MODE , in this case no database need, this is very important because do query to database every time - bad idea.

Summary my settings looks like:

DOWNTIME = True
.
.
.
if DOWNTIME:
    DOWNTIME_EXEMPT_PATHS = (
        '/admin/',
        '/ru/accounts/login/',
        '/en/accounts/login/',
    )
    DOWNTIME_MIXIN = ['utils.utility.downtime_mixin', ]  # custom list of you mixins
    DOWNTIME_NODATABASE_MODE = True  # Dont use DataBase for check maintance mode
    INSTALLED_APPS = (*INSTALLED_APPS, 'downtime',)
    MIDDLEWARE += ['downtime.middleware.DowntimeMiddleware', ]
    # MIDDLEWARE.insert(0, 'downtime.middleware.DowntimeMiddleware', )

    # private params
    DOWNTIME_ADDITIONAL_API_KEY = 'super-puper-secret-key'

--------------------------------- END

Django Downtime

Looking For Authors! This project is currently looking for a user to take it over. If that sounds like you, send a note to derek at stegelman dot com or open up an issue in this repository.

Small, simple, app to show a down page while you make upgrades.

Official Docs

http://django-downtime.readthedocs.org

Install

Django supports versions 1.8, 1.9, 1.10, and 1.11 on Python 2 and 3.

To install django-downtime::

pip install django-downtime

add to installed apps::

downtime

Add downtime middleware to the top your list of installed middlewares::

'downtime.middleware.DowntimeMiddleware',

Settings

Exempted URLs::

DOWNTIME_EXEMPT_EXACT_URLS = (
    '/', # exempts homepage
    '/other_location/not_down/page',
)

Exempted Paths::

DOWNTIME_EXEMPT_PATHS = (
    '/admin',
    '/other_location_not_down',
)

Url Redirect

DOWNTIME_URL_REDIRECT = "http://errors.mypage.com"

Templates

If no URL Redirect is specified a lame default template is rendered, this can be overridden by specifying a downtime/downtime.html template.

Management Commands

There are two managment commands, one to take a project down python manage.py downtime_start and one to set it back up python manage.py downtime_end.

What happens internally when calling python manage.py downtime_start?

This sets a start date time and mark is as enabled. We call this "deployment mode", usually called before running a deployment script.

What happens internally when calling python manage.py downtime_end?

This sets a end date time to all records that has a start date time and no end date time set and are marked as enabled. We call this "closing deployment mode", usually called after running a deployment script.