layerindex-web/layerindex/tasks.py
Diana Thayer 2e671480c7 Asynchronous email notifications, task execution
This patch adds asynchronous task execution using a Celery backend
and RabbitMQ task queue, so that the layer submission process to
proceed even in the event that sending the notification email fails,
and establishing an asynchronous execution mechanism that we can use
in the future e.g. for triggering parse operations from the web UI.
This pertains to bug 11197:

https://bugzilla.yoctoproject.org/show_bug.cgi?id=11197

It updates the README to reflect the installation and configuration
of a basic RabbitMQ setup, adds a 'tasks.py' file to contain task
definitions, updates the 'edit_layer_view' function to send
emails to administrators about new and updated layers asynchronously,
modifies the 'settings.py' to include a default configuration
for a RabbitMQ connection, and updates the Dockerfile to start a Celery
worker alongside the Gunicorn daemon.

Fixes [YOCTO #11197].

Signed-off-by: Diana Thayer <garbados@gmail.com>
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
2017-09-01 16:59:43 +12:00

25 lines
668 B
Python

from celery import Celery
from django.core.mail import EmailMessage
from . import utils
import os
import time
try:
import settings
except ImportError:
# not in a full django env, so settings is inaccessible.
# setup django to access settings.
utils.setup_django()
import settings
tasks = Celery('layerindex',
broker=settings.RABBIT_BROKER,
backend=settings.RABBIT_BACKEND)
@tasks.task
def send_email(subject, text_content, from_email=settings.DEFAULT_FROM_EMAIL, to_emails=[]):
# We seem to need to run this within the task
utils.setup_django()
msg = EmailMessage(subject, text_content, from_email, to_emails)
msg.send()