Github integration for Mattermost
Inspired by mattermost-integration-gitlab this program creates a server using flask that listens for incoming GitHub event webhooks. These are then processed, formatted, and eventually forwarded to Mattermost where they are displayed inside a specified channel.
Requirements
System requirements
- Python3 or Python2
Application requirements
- Flask (install with
pip install flask
) - requests (install with
pip install requests
) - (optional) PIL (install with
pip install pillow
) - needed to hide big Github avatars
All requirements can also be installed using the command
pip install -r requirements.txt
Installation and usage
Method 1: running the application from the project directory
- Clone the repository
- Within the
mattermostgithub
directory, copyconfig.template
toconfig.py
and edit it with your details. For example:
USERNAME = "Github"
ICON_URL = "yourdomain.org/github.png"
MATTERMOST_WEBHOOK_URLS = {
'default' : ("yourdomain.org/hooks/hookid", "off-topic"),
'teamname/repositoryname' : ("yourdomain.org/hooks/hookid2", "repository-channel-id"),
'teamname' : ("yourdomain.org/hooks/hookid3", "town-square"),
'teamname/unimportantrepo' : None,
}
GITHUB_IGNORE_ACTIONS = {
"issues": ["labeled", "assigned"],
}
SECRET = 'secretkey'
SHOW_AVATARS = True
SERVER = {
'hook': "/"
, 'address': "0.0.0.0"
, 'port': 5000
}
Start the server with python server.py
.
Method 2: installing the application with pip
- Create a
virtualenv
:
virtualenv -p python3 env
. env/bin/activate
- Install with
pip
pip install git+https://github.com/softdevteam/mattermost-github-integration
- Download
config.template
and save it asconfig.py
on your machine, changing your details as described above.
The project can then be run as a flask application:
export FLASK_APP=mattermostgithub
export MGI_CONFIG_FILE=path/to/config.py
flask run
Webhooks
GitHub messages can be delegated to different Mattermost hooks. The order is as follows:
- First try to find a hook for the repositories full name.
- If that fails, try to find a hook for the organisation name.
- Otherwise use the default hook.
Repositories can be blacklisted by setting them to None
instead of
(url, channel)
.
Ignore actions
Specific Github events can be ignored by adding GITHUB_IGNORE_ACTIONS
to config.py
. In the example above labeled
and assigned
events for
issues are ignored, while opened
, closed
, etc. events will continue to show
up on Mattermost.
Server settings
The server is listening by default on address 0.0.0.0
, port 5000
, and
using /
as base route.
Make sure to point your Github webhooks to http://yourdomain.org:5000/
.
If you have a proxy/load-balancer in front of your machine, and do not want to
expose port 5000 to the outside, change the SERVER['hook']
value and redirect it
to this service.
For example, if SERVER['hook']
is /hooks/github
, your Github webhooks
would be http://yourdomain.org/hooks/github
.
Secret
If you don't want to use a secret set the field to None
.
Deploying with Docker
Set up your config.py as per the above instructions, and then to deploy with Docker, make sure you have Docker installed and run:
docker run --rm -v "PATH_TO_YOUR/config.py":/app/mattermostgithub/config.py -p 5000:5000 tinfoil/mattermost-github-integration
If you want to run in background mode, change the option --rm
for -d
.
Supported Events
Not all Github events are forwarded to Mattermost. Currently supported events are:
- Ping events (send when first adding the Github webhook)
- Commit pushes and comments
- Issues (open, close, comment)
- Pull Requests (create, merge, remove, comment)
- Create/Delete repositories
- Create/Delete branches and tags
All other events will report back to GitHub with 400 Not Implemented
.
Known issues
-
Channel names need to use the spelling that is used in their URL (the channel ID), e.g. instead of
Town Square
it needs to betown-square
. -
If you set a custom username (as shown in the default config), make sure you also set Enable webhooks and slash commands to override usernames under Custom Integrations in the System Console to True. Otherwise the bots username will be that of the person that setup the Mattermost integretation.