This is a pre-production deployment of Warehouse, however changes made here WILL affect the production instance of PyPI.
Latest Version Dependencies status unknown Test status unknown Test coverage unknown
Project Description

fmn is a family of systems to manage end-user notifications triggered by fedmsg, the Fedora FEDerated MESsage bus.

This module contains the backend worker daemon for Fedora Notifications.

There is a parental placeholder repo with some useful information you might want to read through, like an overview, a little architecture diagram.

HACKING

Find development instructions here: https://github.com/fedora-infra/fmn/#hacking

RUNNING

There are three components to run in section of the project:

  • the fedmsg consumer
  • one or more workers
  • the backend

The consumer is the part of the application that receives the messages from fedmsg, it then sends them to the worker(s) who will see whose preferences the message match (ie: to whom to send the notification and on which channel). The worker(s) then send its results to the backend that receives them and just do the IO: sending the email, posting to IRC and so on.

To run these parts, simply, start rabbitmq-server and redis and call, in three different terminals (all running the same virtual-environment):

$ fedmsg-hub
$ python fmn/consumer/worker.py
$ python fmn/consumer/backend.py

Handy Script

There’s a handy script in the scripts/ dir for debugging why some user did or did not receive a message. It takes a username and a fedmsg msg_id and tries to see if the two match up or not based on the production preferences for that user.

Architecture

                                                     +-------------+
                                              Read   |             |   Write
                                              +------+  prefs DB   +<------+
                                              |      |             |       |
   +                                          |      +-------------+       |
   |                                          |                            |   +------------------+   +--------+
   |                                          |                            |   |    |fmn.lib|     |   |        |
   |                                          v                            |   |    +-------+     |<--+  User  |
   |                                    +----------+                       +---+                  |   |        |
   |                                    |   fmn.lib|                           |  Central WebApp  |   +--------+
   |                                    |          |                           +------------------+
   |                             +----->|  Worker  +--------+
   |                             |      |          |        |
fedmsg                           |      +----------+        |
   |                             |                          |
   |                             |      +----------+        |
   |   +------------------+      |      |   fmn.lib|        |       +--------------------+
   |   | fedmsg consumer  |      |      |          |        |       | Backend            |
   +-->|                  +------------>|  Worker  +--------------->|                    |
   |   |                  |      |      |          |        |       +-----+   +---+  +---+
   |   +------------------+      |      +----------+        |       |email|   |IRC|  |SSE|
   |                             |                          |       +--+--+---+-+-+--+-+-+
   |                             |      +----------+        |          |        |      |
   |                             |      |   fmn.lib|        |          |        |      |
   |                             |      |          |        |          |        |      |
   |                             +----->|  Worker  +--------+          |        |      |
   |                         RabbitMQ   |          |    RabbitMQ       |        |      |
   |                                    +----------+                   |        |      |
   |                                                                   v        v      v
   |
   |
   |
   v

FAQ

Q: If the worker and backend complain about

self.db[key] = value
TypeError: String or Integer object expected for key, unicode found

A: Modify the config for fedmsg.d/fmn.py to use redis

# Some configuration for the rule processors
"fmn.rules.utils.use_pkgdb2": False,
"fmn.rules.utils.pkgdb2_api_url": "http://209.132.184.188/api/",
"fmn.rules.cache": {
    'backend': 'dogpile.cache.redis',
    'arguments': {
        'host': 'localhost',
        'port': 6379,
        'db': 0,
        'redis_expiration_time': 60*60*2,   # 2 hours
        'distributed_lock': True
    },
    # "backend": "dogpile.cache.dbm",
    # "expiration_time": 300,
    # "arguments": {
    #     "filename": "/var/tmp/fmn-cache.dbm",
    # },
},

Q: When I run the worker and backend it constantly quits right away

A: Do you have rabbitmq-server and redis running?

systemctl status rabbitmq-server redis

if not run

systemctl start rabbitmq-server redis

Q: When running fedmsg-hub it shows that stuff are not initialized in the output

A: Have you updated the repo and ran the setup again?

git pull
workon fmn
python setup.py develop

Q: I have fedmsg-hub, worker.py and backend running now what?

A: Load up the web interface and enable IRC and add your nick. Checkout fmn.web and fmn for more info.

Q: It’s saying my nick is invalid

A: Is your nick registered? If not run this with the correct information

/msg NickServ REGISTER password youremail@example.com

src: freenode

Q: How do I know if it’s working?

A: In IRC you should get contacted by threebot

<threebot> <user>.id.fedoraproject.org has requested that notifications be sent to this nick
<threebot> * To accept, visit this address:

Q: How do I stress test?

A: To be continued. Scripts are in process of being created

Release History

Release History

1.0.3

This version

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1.0.2

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1.0.1

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1.0.0

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0.8.1

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0.6.3

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0.6.2

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0.6.1

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0.6.0

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0.5.2

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0.5.1

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0.5.0

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0.4.5

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0.4.4

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0.4.3

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0.4.1

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0.3.1

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0.3.0

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0.2.7

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0.2.6

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0.2.5

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0.2.4

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0.2.3

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0.2.2

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0.2.1

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0.2.0

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0.1.3

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0.1.2

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0.1.1

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0.1.0

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0.0.1

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Download Files

Download Files

TODO: Brief introduction on what you do with files - including link to relevant help section.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
fmn.consumer-1.0.3.tar.gz (52.5 kB) Copy SHA256 Checksum SHA256 Source Jul 27, 2016

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