infra-specs/specs/irc.rst
Jeremy Stanley 80dbe6a2a5 Help wanted on IRC Bot Consolidation
Since the IRC Bot Consolidation spec has no assignees, it clearly
belongs in the Help Wanted section of the index instead of Approved
Design Specifications (this is in fact our criteria for deciding
what goes under Help Wanted). Also add a proper SB URL so that this
can be more easily tracked in our TODO board.

Change-Id: I8d54b207253a5f97b7655091d8685d03d55b91e9
Story: #2001736
Task: #12091
2018-03-26 14:26:30 +00:00

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Copyright 2018 Red Hat, Inc.
This work is licensed under a Creative Commons Attribution 3.0
Unported License.
http://creativecommons.org/licenses/by/3.0/legalcode
=====================
IRC Bot Consolidation
=====================
https://storyboard.openstack.org/#!/story/2001736
Reduce the number of IRC bots and ensure they can operate in all channels.
Problem Description
===================
We have a couple of IRC-related problems converging:
* Too many channels (more than limit of 120 per connection)
* Lots of individual bots, which all must be configured and all have that limit
* Bots are written for different frameworks
* Difficult to react to spam in one or more channels across so many
Proposed Change
===============
We use supybot for channel and meeting logs. It is not under active
development, but it has a successor called Limnoria, which is in later
Ubuntu releases (after xenial). It's python and is easy to install in
a venv in the interim. Using it lets us continue to use our existing
meetbot system, which is the most difficult part of our irc services
to change. Our other bots are mostly home-grown and could be ported
fairly easily. With it, we can have the same bot instance participate
in all channels by using its ability to support multiple connections.
That will let us log all 186 channels, hold meetings in them, send
status updates, gerrit notifications, etc, with one config.
The following config example illustrates how to use the multiple
connection feature of limnoria to address the channel limit::
supybot.networks: freenode1 freenode2
supybot.networks.freenode1.nick: openstack1
supybot.networks.freenode2.nick: openstack2
supybot.networks.freenode1.servers: chat.freenode.net:6667
supybot.networks.freenode2.servers: chat.freenode.net:6667
supybot.networks.freenode1.channels: #openstack
supybot.networks.freenode2.channels: #openstack-infra
Alternatives
------------
We could switch to errbot, though we would additionally need to
address the meetbot and logging functionality we currently use with
supybot, as well as develop a new method of updating configuration.
Implementation
==============
Assignee(s)
-----------
Your name here.
Gerrit Topic
------------
Use Gerrit topic "ircbots" for all patches related to this spec.
.. code-block:: bash
git-review -t ircbots
Work Items
----------
* Install limnoria on eavesdrop, to replace supybot
* Configure freenode1 and freenode2 networks, using openstack1 and openstack2 nicks
* Add all channels to the config, splitting across freenode1 and freenode2
* Set all channels to extban based on #openstack so it's easy to
update a global ban list.
* Add a plugin to watch for highlight spam, and automatically kick
accounts and add a ban to #openstack
* Auto-generate the limnoria config based on a yaml file with channel descriptions
* Convert statusbot into a plugin and retire
* Convert gerritbot into a plugin and retire
* Convert recheckwatch into a plugin and retire
Repositories
------------
None.
Servers
-------
Changes to eavesdrop.o.o and other servers which currently run bots.
DNS Entries
-----------
None.
Documentation
-------------
Bot configuration docs should be updated in infra-manual.
Security
--------
This will probably put an unprivileged gerrit ssh key on eavesdrop,
but otherwise should not adversely affect security posture. Ceasing
to run gerritbot on review.o.o is a likely security benefit.
Testing
-------
None.
Dependencies
============
None.