Login to selfhosted Gitlab fails

paulvn
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May 21, 2024

Dear community,

After setting up a JIRA integration with our self hosted Gitlab instance we get the following error:

Client authentication failed due to unknown client, no client authentication included, or unsupported authentication method.

 

Followed all steps in this guide. Installation is succesfull.

In Jira Cloud go to "Apps --> Manage your Apps --> GitLab for Jira (gitlab.example.com) --> Get started" resulting in this page:

Screenshot from 2024-05-21 12-14-53.png 

After clicking the "Sign in to GitLab"-Button this error is displayed:

Screenshot from 2024-05-21 12-16-07.png

Any hints what might be the issue and what we can try to get it solved?

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Lígia Zanchet
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
May 24, 2024

Hello Paulvn 

Welcome to our community :)  

Did you notice this note in the documentation

On self-managed GitLab, by default this feature is not available. To make it available, ask an administrator to enable the feature flags named jira_connect_oauth and jira_connect_oauth_self_managed. On GitLab.com, this feature is not available. The feature is not ready for production use.

It appears:

  1. You can't connect directly to a self-managed instance, you have to use GitLab.com as a proxy
  2. You have to ask your GitLab.com administrator to enable the Feature flag for you because this feature is still in development

I suggest you reach out to GitLab for clarification and configuration assistance.


Hope that information is helpful. 

paulvn
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June 10, 2024

Hi Ligia,

Thanks for the response.

I looked into it again. This feature was released some time ago, and is no longer behind a feature flag. The documentation link refers to an older version of Gitlab.

I will look into proxy settings again / check with Gitlab

Lígia Zanchet
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
June 11, 2024

Hey paulvn

Thank you for the information, I was not aware of that change in GitLab.
If there is something needed from the Jira end, just message this thread and hope we can find it together. 
Thank you 

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