Mattermost and Gitlab are latest
Gitlab is port 8181, Mattermost is port 8282, both are https. They are running on same server, Gitlab Omnibus package.
I followed the steps from guide url below
Go to mattermost home page
Add a team name
Click on create
Redirects to gitlab login page
After login it shows "Authorize required, Authorize mattermost to use your account?
I click accept
Redirects to mattermost it shows “GitLab Mattermost needs your help: Token request failed, Go back to team site”
Been stuck now for a few hours, don’t know what issues is. Get this regardless if I use http or https.