GitLab Integration Service for Mattermost
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README.md

NOTE: THIS REPO IS REPLACED BY https://github.com/NotSqrt/mattermost-integration-gitlab

The original purpose of this repo was to provide sample code for the community to create Mattermost integrations. The Mattermost core team recommends the repo above be used for further development.

GitLab Integration Service for Mattermost

This integrations service posts issue, comment and merge request events from a GitLab repository into specific Mattermost channels by formatting output from GitLab's outgoing webhooks to Mattermost's incoming webhooks.

Project Goal

The goal of this project is to provide a fully-functional template on which the Mattermost community can create their own integration services. Community members are invited to fork this repo to add improvements and to create new integrations.

To have your work included on the Mattermost integrations page, please mail info@mattermost.com or tweet to @MattermostHQ.

Requirements

To run this integration you need:

  1. A web server running Ubuntu 14.04 and Python 2.7 or compatible versions.
  2. A GitLab account with a repository to which you have administrator access
  3. A Mattermost account where incoming webhooks are enabled

Many web server options will work, below we provide instructions for Heroku and a general Linux/Ubuntu server. Added a Dockerfile and instructions

Heroku-based Install

To install this project using Heroku, you will need:

  1. A Heroku account, available for free at Heroku.com
  2. A GitHub account, available for free at GitHub.com

Here's how to start:

  1. Create a copy of this project to manipulate

  2. Log in to your GitHub account. Go to the Github repository of this project and click Fork in the top-right corner to create a copy of this project that you control and manipulate.

  3. Deploy your project copy to Heroku

  4. Go to your Heroku Dashboard and click + in the top-right corner then Create New App. Give your app a unqiue name (like mattermost-gitlab-[YOUR_GITHUB_USERNAME]), select your region and click Create App.

  5. Heroku directs you to the Deploy tab of the dashboard for your new app, select GitHub as your connection option, then click Connect to GitHub at the bottom of the screen to authorize Herkou to access your GitHub account.

  6. In the pop up window, click Authorize Application to allow Heroku to access your accounts repositories. On your Heroku dashboard, select your account in the first drop-down then search for the repo we created earlier by forking this project. Type mattermost-integration-gitlab in the repo-name field, then click Search and then the Connect button once Heroku finds your repository.

  7. Scroll to the bottom of the new page. Under the Manual Deploy section, make sure the master branch is selected then click Deploy Branch. After a few seconds you'll see a confirmation that the app has been deployed.

  8. At the top of your app dashboard, go to the Settings tab and scroll down to the Domains section. Copy the URL below Heroku Domain (we'll refer to this as http://<your-heroku-domain>/ and we'll need it in the next step)

  9. Leave your Heroku interface open as we'll come back to it to finish the setup.

  10. Connect your project to your GitLab account for outgoing webhooks

  11. Log in to GitLab account and open the project from which you want to receive updates and to which you have administrator access. From the left side of the project screen, click on Settings > Web Hooks. In the URL field enter http://<your-heroku-domain>/ from the previous step, plus the word new_event to create an entry that reads http://<your-heroku-domain>/new_event so events from your GitLab project are sent to your Heroku server. Make sure your URL has a leading http:// or https://.

  12. On the same page, under Trigger select Push events, Comment events, Issue events, Merge Request events

  13. (Recommended but optional): Encrypt your connection from GitLab to your project by selecting Enable SSL verification. If this option is not available and you're not familiar with how to set it up, contact your GitLab System Administrator for help.

  14. Click Add Web Hook and check that your new webhook entry is added to the Web hooks section below the button.

  15. Leave this page open as we'll come back to it to test that everything is working.

  16. Set up your Mattermost instance to receive incoming webhooks

  17. Log in to your Mattermost account. Click the three dot menu at the top of the left-hand side and go to Account Settings > Integrations > Incoming Webhooks.

  18. Under Add a new incoming webhook select the channel in which you want GitLab notifications to appear, then click Add to create a new entry.

  19. Copy the contents next to URL of the new webhook you just created (we'll refer to this as https://<your-mattermost-webhook-URL> and add it to your Heroku server).

  20. Go back to your Heroku app dashboard under the Settings tab. Under the Config Variables section, click Reveal Config Vars

    1. Type MATTERMOST_WEBHOOK_URL in the KEY field and paste https://<your-mattermost-webhook-URL> into the VALUE field, then click Add.
    2. In the second KEY field, type PUSH_TRIGGER and in the corresponding VALUE field, type True.
  21. Test your webhook integration

  22. If your GitLab project is in active development, return to the Settings > Web Hooks page of your GitLab project and click Test Hook to send a test message about one of your recent updates from your GitLab project to Mattermost. You should see a notification on the Gitlab page that the hook was successfully executed. In Mattermost, go to the channel which you specified when creating the URL for your incoming webhook and make sure that the message delivered successfully.

  23. If your GitLab project is new, try creating a test issue and then verify that the issue is posted to Mattermost.

  24. Back on the settings tab of your Heroku app dashboard, under the Config Variables, click Reveal Config Vars and then click the X next to the PUSH_TRIGGER field you added. This config variable was used for testing only, and is better left turned off for production

  25. If you have any issues, please go to http://forum.mattermost.org and let us know which steps in these instructions were unclear or didn't work.

Linux/Ubuntu 14.04 Web Server Install

The following procedure shows how to install this project on a Linux web server running Ubuntu 14.04. The following instructions work behind a firewall so long as the web server has access to your GitLab and Mattermost instances.

To install this project using a Linux-based web server, you will need a Linux/Ubuntu 14.04 web server supporting Python 2.7 or a compatible version. Other compatible operating systems and Python versions should also work.

Here's how to start:

  1. Set up your Mattermost instance to receive incoming webhooks

  2. Log in to your Mattermost account. Click the three dot menu at the top of the left-hand side and go to Account Settings > Integrations > Incoming Webhooks.

  3. Under Add a new incoming webhook select the channel in which you want GitLab notifications to appear, then click Add to create a new entry.

  4. Copy the contents next to URL of the new webhook you just created (we'll refer to this as https://<your-mattermost-webhook-URL>).

  5. Set up this project to run on your web server

  6. Set up a Linux Ubuntu 14.04 server either on your own machine or on a hosted service, like AWS.

  7. SSH into the machine, or just open your terminal if you're installing locally.

  8. Confirm Python 2.7 or a compatible version is installed by running:

    • python --version If it's not installed you can find it here
  9. Install pip and other essentials:

    • sudo apt-get install python-pip python-dev build-essential
  10. Clone this GitHub repo:

    • git clone https://github.com/mattermost/mattermost-integration-gitlab.git
    • cd mattermost-integration-gitlab
  11. Install integration requirements:

    • sudo pip install -r requirements.txt
  12. Add the following lines to your ~/.bash_profile:

    • export MATTERMOST_WEBHOOK_URL=https://<your-mattermost-webhook-URL> This is the URL you copied in the last section
    • export PUSH_TRIGGER=True
    • export PORT=<your-port-number> The port number you want the integration to listen on (defaults to 5000)
  13. Source your bash profile:

    • source ~/.bash_profile
  14. Run the server:

    • python server.py
  15. Connect your project to your GitLab account for outgoing webhooks

  16. Log in to GitLab account and open the project from which you want to receive updates and to which you have administrator access. From the left side of the project screen, click on Settings > Web Hooks. In the URL field enter http://<your-web-server-domain>/ from the previous step, plus the word new_event to create an entry that reads http://<your-web-server-domain>/new_event so events from your GitLab project are sent to your Heroku server. Make sure your URL has a leading http:// or https://.

  17. On the same page, under Trigger select Push events, Comment events, Issue events, Merge Request events

  18. (Recommended but optional): Encrypt your connection from GitLab to your project by selecting Enable SSL verification. If this option is not available and you're not familiar with how to set it up, contact your GitLab System Administrator for help.

  19. Click Add Web Hook and check that your new webhook entry is added to the Web hooks section below the button.

  20. Leave this page open as we'll come back to it to test that everything is working.

  21. Test your webhook integration

  22. If your GitLab project is in active development, return to the Settings > Web Hooks page of your GitLab project and click Test Hook to send a test message about one of your recent updates from your GitLab project to Mattermost. You should see a notification on the Gitlab page that the hook was successfully executed. In Mattermost, go to the channel which you specified when creating the URL for your incoming webhook and make sure that the message delivered successfully.

  23. If your GitLab project is new, try creating a test issue and then verify that the issue is posted to Mattermost.

  24. Remove the export PUSH_TRIGGER=True line from your ~/.bash_profile and source it again source ~/.bash_profile. This was used for testing only, and is better left turned off for production

  25. If you have any issues, please go to http://forum.mattermost.org and let us know which steps in these instructions were unclear or didn't work.

Docker Instructions

This is primarily for use with a Docker instance of Gitlab (Mattermost may or may not be in the same container).

  1. Set up your Mattermost instance to receive incoming webhooks

  2. Log in to your Mattermost account. Click the three dot menu at the top of the left-hand side and go to Account Settings > Integrations > Incoming Webhooks.

  3. Under Add a new incoming webhook select the channel in which you want GitLab notifications to appear, then click Add to create a new entry.

  4. Copy the contents next to URL of the new webhook you just created (we'll refer to this as https://<your-mattermost-webhook-URL>).

  5. Clone this project to your docker server and build it There are some variations you can do... you can also build this, send it to your docker hub and pull the image from your docker server.

  6. Clone this GitHub repo:

    • git clone https://github.com/mattermost/mattermost-integration-gitlab.git
    • cd mattermost-integration-gitlab
  7. Build the container

    • docker build -t mattermost-integration-gitlab .
  8. Run the docker image

    • docker run -e "MATTERMOST_WEBHOOK_URL=https://<your-mattermost-webhook-URL>" -e "PUSH_TRIGGER=True" --name mattermost-integration-gitlab -e "SSL_VERIFY=False" -d mattermost-integration-gitlab
    • The SSL_VERIFY environment variable is optional, it defaults to True
    • Alternately you could publish port 5000 and connect through other means
  9. Modify your gitlab docker run command and re-run it

    • Add --link mattermost-integration-gitlab:mattermost-integration-gitlab
  10. Connect your project to your GitLab account for outgoing webhooks

  11. Log in to GitLab account and open the project from which you want to receive updates and to which you have administrator access. From the left side of the project screen, click on Settings > Web Hooks. In the URL field enter http://mattermost-integration-gitlab:5000/new_event

  12. On the same page, under Trigger select Push events, Comment events, Issue events, Merge Request events

  13. Uncheck Enable SSL verification. SSL Verification is not necessary since the containers are linked and mattermost-integration-gitlab container is not publishing the port.

  14. Click Add Web Hook and check that your new webhook entry is added to the Web hooks section below the button.

  15. Leave this page open as we'll come back to it to test that everything is working.

  16. Test your webhook integration

  17. If your GitLab project is in active development, return to the Settings > Web Hooks page of your GitLab project and click Test Hook to send a test message about one of your recent updates from your GitLab project to Mattermost. You should see a notification on the Gitlab page that the hook was successfully executed. In Mattermost, go to the channel which you specified when creating the URL for your incoming webhook and make sure that the message delivered successfully.

  18. If your GitLab project is new, try creating a test issue and then verify that the issue is posted to Mattermost.

  19. If your configuration works, you can re-run the integration container (step 2.3) without the -e "PUSH_TRIGGER=True". This was used for testing only, and is better left turned off for production.

    • docker stop mattermost-integration-gitlab
    • docker rm mattermost-integration-gitlab
    • docker run -e "MATTERMOST_WEBHOOK_URL=https://<your-mattermost-webhook-URL>" --name mattermost-integration-gitlab -e "SSL_VERIFY=False" -d mattermost-integration-gitlab
    • Remove and re-run your gitlab container (not sure if this is avoidable, only way I could get it to work)
  20. If you have any issues, please go to http://forum.mattermost.org and let us know which steps in these instructions were unclear or didn't work.

Channel Specific Webhooks

Say you have an issues channel and you want your issues to go there, and your merge requests to a different channel... (Note: you still need a default channel setup via MATTERMOST_WEBHOOK_URL

  1. Set up your Mattermost instance to receive incoming webhooks
  2. Log in to your Mattermost account. Click the three dot menu at the top of the left-hand side and go to Account Settings > Integrations > Incoming Webhooks.
  3. Under Add a new incoming webhook select the channel in which you want GitLab notifications to appear, then click Add to create a new entry.
  4. Copy the contents next to URL of the new webhook you just created (we'll refer to this as https://<your-mattermost>/hooks/<channel_hook_code>).
  5. Add the webhook to the GitLab configuration you want
  6. Log in to GitLab account and open the project from which you want to receive updates and to which you have administrator access. From the left side of the project screen, click on Settings > Web Hooks. In the URL field enter http://mattermost-integration-gitlab:5000/new_event_hook/<channel_hook_code>
  7. On the same page, under Trigger select what you want to go to that channel... Push events, Comment events, Issue events, Merge Request events
  8. Uncheck Enable SSL verification. SSL Verification is not necessary since the containers are linked and mattermost-integration-gitlab container is not publishing the port.
  9. Click Add Web Hook and check that your new webhook entry is added to the Web hooks section below the button.