django-letsmaintain
Django middleware that provides a maintenance countdown warning message.
This middleware searches the cache for the key maintenance_alert. Its contents are expected to be a string representing an aware datetime in isoformat:
from datetime import datetime, timezone
the_time = datetime.now(timezone.utc).isoformat(timespec='minutes')
print(the_time)
Example result: '2020-06-24T12:00+00:00'
-
The middleware will raise a warning in all pages with a seconds countdown.
-
The last 60 seconds, the warning message will become an error message.
A bash script can invoke the relevant cache key:
#!/bin/bash
FIVE_MINUTES_LATER=$(date --date "$(date +%Y-%m-%dT%H:%M:%S%:z) +5 min" --iso-8601=minutes)
echo "from django.core.cache import cache; cache.set(\"maintenance_alert\", \"$FIVE_MINUTES_LATER\")" \
| ./manage.py shell
sleep 5m
# Redirect to maintenance.html
# nginx example: https://lincolnloop.com/blog/pro-tip-redirecting-custom-nginx-maintenance-page/
# <perform maintenance>
# Cancel redirect
Required Settings
The required settings for the middleware to operate are:
CACHESTIME_ZONEUSE_TZ = True- "letsmaintain" in
INSTALLED_APPS - "letsmaintain.middleware.MaintenanceMiddleware" in
MIDDLEWAREafter "MessageMiddleware"
Tests
To run the tests:
- Install tox
- Define:
TOX_DB_NAME,TOX_DB_USER,TOX_DB_PASSWD
1 maintainer
Metadata
1 maintainer
Release files for django-letsmaintain 1.0.9
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Source distribution (sdist)
| File | Size | Uploaded | Provenance | Actions |
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| django_letsmaintain-1.0.9.tar.gz | 3.8 kB | Without provenance | Details for django_letsmaintain-1.0.9.tar.gz |
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| django_letsmaintain-1.0.9-py3-none-any.whl | Python 3 | none | any | Details for django_letsmaintain-1.0.9-py3-none-any.whl |
Total release size: 9.6 kB
Release files / django_letsmaintain-1.0.9.tar.gz
| Download URL | django_letsmaintain-1.0.9.tar.gz |
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