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django-maintenance-mode shows a 503 error page when maintenance-mode is on.

Project Description

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django-maintenance-mode

django-maintenance-mode shows a 503 error page when maintenance-mode is on.

It works at application level, so your django instance should be up.

It doesn’t use database and doesn’t prevent database access.

Requirements

  • Python 2.7, 3.4, 3.5, 3.6
  • Django 1.7, 1.8, 1.9, 1.10, 1.11, 2.0

Installation

  1. Run pip install django-maintenance-mode or download django-maintenance-mode and add the maintenance_mode package to your project
  2. Add 'maintenance_mode' to settings.INSTALLED_APPS before custom applications
  3. Add 'maintenance_mode.middleware.MaintenanceModeMiddleware' to settings.MIDDLEWARE_CLASSES/settings.MIDDLEWARE as last middleware
  4. Add your custom templates/503.html file
  5. Restart your application server

Configuration (optional)

Settings

All these settings are optional, if not defined in settings.py the default values (listed below) will be used.

# if True the maintenance-mode will be activated
MAINTENANCE_MODE = None
# by default, a file named "maintenance_mode_state.txt" will be created in the maintenance_mode directory
# you can customize the state file path in case the default one is not writable
MAINTENANCE_MODE_STATE_FILE_PATH = 'maintenance_mode_state.txt'
# if True anonymous users will not see the maintenance-mode page
MAINTENANCE_MODE_IGNORE_ANONYMOUS_USER = False
# if True authenticated users will not see the maintenance-mode page
MAINTENANCE_MODE_IGNORE_AUTHENTICATED_USER = False
# if True the staff will not see the maintenance-mode page
MAINTENANCE_MODE_IGNORE_STAFF = False
# if True the superuser will not see the maintenance-mode page
MAINTENANCE_MODE_IGNORE_SUPERUSER = False
# list of ip-addresses that will not be affected by the maintenance-mode
# ip-addresses will be used to compile regular expressions objects
MAINTENANCE_MODE_IGNORE_IP_ADDRESSES = ()
# the path of the function that will return the client IP address given the request object -> 'myapp.mymodule.myfunction'
# the default function ('maintenance_mode.utils.get_client_ip_address') returns request.META['REMOTE_ADDR']
MAINTENANCE_MODE_GET_CLIENT_IP_ADDRESS = None

Retrieve user’s real IP address using django-ipware:

MAINTENANCE_MODE_GET_CLIENT_IP_ADDRESS = 'ipware.ip.get_ip'
# list of urls that will not be affected by the maintenance-mode
# urls will be used to compile regular expressions objects
MAINTENANCE_MODE_IGNORE_URLS = ()
# if True the maintenance mode will not return 503 response while running tests
# useful for running tests while maintenance mode is on, before opening the site to public use
MAINTENANCE_MODE_IGNORE_TESTS = False
# the absolute url where users will be redirected to during maintenance-mode
MAINTENANCE_MODE_REDIRECT_URL = None
# the template that will be shown by the maintenance-mode page
MAINTENANCE_MODE_TEMPLATE = '503.html'
# the path of the function that will return the template context -> 'myapp.mymodule.myfunction'
MAINTENANCE_MODE_GET_TEMPLATE_CONTEXT = None

URLs

Add maintenance_mode.urls to urls.py if you want superusers able to set maintenance_mode using urls.

urlpatterns = [
    # ...
    url(r'^maintenance-mode/', include('maintenance_mode.urls')),
    # ...
]

Context Processors

Add maintenance_mode.context_processors.maintenance_mode to your context_processors list in settings.py if you want to access the maintenance_mode status in your templates.

TEMPLATES = [
    {
        # ...
        'OPTIONS': {
            'context_processors': [
                # ...
                'maintenance_mode.context_processors.maintenance_mode',
                # ...
            ],
        },
        # ...
    },
]

Views

You can force maintenance mode on/off at view level using view decorators:

from maintenance_mode.decorators import force_maintenance_mode_off, force_maintenance_mode_on

@force_maintenance_mode_off
def my_view_a(request):
    # never return 503 response
    pass

@force_maintenance_mode_on
def my_view_b(request):
    # always return 503 response
    pass

Usage

Python

from maintenance_mode.core import get_maintenance_mode, set_maintenance_mode

set_maintenance_mode(True)

if get_maintenance_mode():
    set_maintenance_mode(False)

or

from django.core.management import call_command
from django.core.management.base import BaseCommand


class Command(BaseCommand):

    def handle(self, *args, **options):

        call_command('maintenance_mode', 'on')

        # call your command(s)

        call_command('maintenance_mode', 'off')

Templates

{% if maintenance_mode %}
<!-- html -->
{% endif %}

Terminal

Run python manage.py maintenance_mode <on|off>

(This is not Heroku-friendly because any execution of heroku run manage.py will be run on a separate worker dyno, not the web one. Therefore the state-file is set but on the wrong machine)

URLs

Superusers can change maintenance-mode using the following urls:

/maintenance-mode/off/

/maintenance-mode/on/

License

Released under MIT License.

Release history Release notifications

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0.9.0

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0.7.2

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0.3.1

Download files

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Filename, size & hash SHA256 hash help File type Python version Upload date
django-maintenance-mode-0.9.0.tar.gz (10.2 kB) Copy SHA256 hash SHA256 Source None Mar 29, 2018

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