Login with GitLab

Install auth_oidc module.

Configure the auth provider with these options:

Provider Name: Login with GitLab
Auth Flow: OpenID Connect (authorization code flow)
Token Map: sub:user_id
Client ID: 1671ed7714ec2c2fb58c43f71f7cced55c5c85355f7d88f85fc6614b9c7c1b1d
Client Secret: **************************************************
Allowed: [x]
Body: Login with GitLab
Authorization URL: https://gitlab.com/oauth/authorize
Scope: openid
Token URL: https://gitlab.com/oauth/token
JWKS URL: https://gitlab.com/-/jwks