We upgraded from version 6.0.2 running on Fedora 33 to 7.5.1. We migrated from the Fedora system to a RHEL 8 system running 7.5.1. We used all Mattermost instructions and are running Enterprise Gov edition. Everything looked good but we can’t get the connection to GitLab working with OpenID Connect. GitLab is running gitlab-ee:15.1.0-ee.0.
Mattermost Log Error - repeats 3 times.
“level”,“msg”:“can’t decrypt token:,:caller”:“app/plugin_api.go:976”,“plugin_id”:“com.githubmanland.mattermost-plugin-gitlab”,“err”:“unpad error. This could happen when incorrect encryption key is used”
When running ‘\gitlab connect’ and other commands we get the following error on GitLab
(User Settings > User Settings) “An error has occurred.” “The redirect URI is not valid.”
Configured URI are the same on Fedora and Red Hat.
- The Fedora 33 system is still maintaining its OpenID connection to GitLab.
- Server certificates are not producing errors.
- We did leave comments for the migration process adding commands to restorecon, chown, chmod, and setcap which were part of the installation and upgrade.