Steps to Integrate Mattermost with GitLab

1. open GitLab using public-instance-ip of your instance. Then login using username as root and password as “instance-id”

2. Now, Click on the icon as shown in the below image  to access the admin panel

3. Click on Applications

4. Select Mattermost and press edit button

5. Now, Replace the old ip with the public ip of your instance and Click on Submit

6. Copy the Application-ID and Secret in text file as we will need these details further in our setup.

7. In AWS Console, select the GitLab EC2 instance and SSH into the instance.

8. Enter the below Commands in the terminal

sudo su

nano /etc/gitlab/gitlab.rb

Press ctrl+w and search for mattermost [gitlab-id]

Now, edit and paste the mattermost [‘gitlab-id’] and mattermost [‘gitlab-secret’] that you have copied earlier in the step 6

Press ctrl+x and then type y and enter to save

Next, type the command gitlab-ctl reconfigure

9. Now open a new tab in the browser, enter public-ip of your instance with port 9000 to see Kanboard Admin Panel. URL : http://instance-public-ip:9000

10. You will see the login page , click on Sign In with Gitlab

11. Next, Click on Authorize

12. Your mattermost is integrated with GitLab and you can now select the default team or create your own team.