try to config GITLAB to use keycloak as oidc provider, return 500 error

Summary

I want to let gitlab use keycloak oidc login. gitlab version: GitLab Enterprise Edition 12.6.3-ee keycloak version 8.0.1

both are using http. https is not enabled.

I am following this guide: https://docs.gitlab.com/ee/administration/auth/oidc.html

Steps to reproduce

add openid_connnect provider in gitlab.rb

 gitlab_rails['omniauth_providers'] = [
   {
     'name' => 'openid_connect',
     'label' => 'keycloak',
     'args' => {
             'name' => 'openid_connect',
             'scope' => ['openid','profile'],
             'response_type' => 'code',
             'issuer' => 'http://172.*.*.*:8080',
             'discovery' => true,
             'client_auth_method' => 'query',
             'uid_field' => 'preferred_username',
             'client_options' => {
                'identifier' => 'gitlab',
                'secret' => '6de3c7ea-*****',
                'redirect_uri' => 'http://gitlab.test.com/users/auth/openid_connect/callback'

             }

     }
   }
 ]

enable some setting:

 gitlab_rails['omniauth_allow_single_sign_on'] = ['saml','openid_connect']
 gitlab_rails['omniauth_block_auto_created_users'] = true
 gitlab_rails['omniauth_auto_link_ldap_user'] = true

reconfig gitlab
open gitlab index. display normally, I can see the "keycloak" button in the "sign in with" section
click the keycloak button, the url return 500 error http://gitlab.willy.com/users/auth/openid_connect

What is the current bug behavior?

click the keycloak button, the url return 500 error http://gitlab.willy.com/users/auth/openid_connect in /var/log/gitlab/gitlab-rails/production.log. I see below error:

OpenIDConnect::Discovery::DiscoveryFailed (SSL_connect returned=1 errno=0 state=error: wrong version number):

lib/gitlab/middleware/rails_queue_duration.rb:27:in `call'
lib/gitlab/metrics/rack_middleware.rb:17:in `block in call'
lib/gitlab/metrics/transaction.rb:62:in `run'
lib/gitlab/metrics/rack_middleware.rb:17:in `call'
lib/gitlab/request_profiler/middleware.rb:17:in `call'
ee/lib/gitlab/jira/middleware.rb:19:in `call'
lib/gitlab/middleware/go.rb:20:in `call'
lib/gitlab/etag_caching/middleware.rb:13:in `call'
lib/gitlab/middleware/correlation_id.rb:16:in `block in call'
lib/gitlab/middleware/correlation_id.rb:15:in `call'
lib/gitlab/middleware/multipart.rb:117:in `call'
lib/gitlab/middleware/read_only/controller.rb:48:in `call'
lib/gitlab/middleware/read_only.rb:18:in `call'
lib/gitlab/middleware/basic_health_check.rb:25:in `call'
lib/gitlab/request_context.rb:32:in `call'
config/initializers/fix_local_cache_middleware.rb:9:in `call'
lib/gitlab/metrics/requests_rack_middleware.rb:49:in `call'
lib/gitlab/middleware/release_env.rb:12:in `call'

What is the expected correct behavior?

jump to keycloak to login and redirect back.

Relevant logs and/or screenshots

OpenIDConnect::Discovery::DiscoveryFailed (SSL_connect returned=1 errno=0 state=error: wrong version number):

lib/gitlab/middleware/rails_queue_duration.rb:27:in `call'
lib/gitlab/metrics/rack_middleware.rb:17:in `block in call'
lib/gitlab/metrics/transaction.rb:62:in `run'
lib/gitlab/metrics/rack_middleware.rb:17:in `call'
lib/gitlab/request_profiler/middleware.rb:17:in `call'
ee/lib/gitlab/jira/middleware.rb:19:in `call'
lib/gitlab/middleware/go.rb:20:in `call'
lib/gitlab/etag_caching/middleware.rb:13:in `call'
lib/gitlab/middleware/correlation_id.rb:16:in `block in call'
lib/gitlab/middleware/correlation_id.rb:15:in `call'
lib/gitlab/middleware/multipart.rb:117:in `call'
lib/gitlab/middleware/read_only/controller.rb:48:in `call'
lib/gitlab/middleware/read_only.rb:18:in `call'
lib/gitlab/middleware/basic_health_check.rb:25:in `call'
lib/gitlab/request_context.rb:32:in `call'
config/initializers/fix_local_cache_middleware.rb:9:in `call'
lib/gitlab/metrics/requests_rack_middleware.rb:49:in `call'
lib/gitlab/middleware/release_env.rb:12:in `call'

Output of checks

Results of GitLab environment info

Expand for output related to GitLab environment info

(For installations with omnibus-gitlab package run and paste the output of:
sudo gitlab-rake gitlab:env:info)
System information
System:
Proxy:          no
Current User:   git
Using RVM:      no
Ruby Version:   2.6.3p62
Gem Version:    2.7.9
Bundler Version:1.17.3
Rake Version:   12.3.3
Redis Version:  3.2.12
Git Version:    2.24.1
Sidekiq Version:5.2.7
Go Version:     unknown
GitLab information
Version:        12.6.3-ee
Revision:       461e0ee8310
Directory:      /opt/gitlab/embedded/service/gitlab-rails
DB Adapter:     PostgreSQL
DB Version:     10.9
URL:            http://gitlab.willy.com
HTTP Clone URL: http://gitlab.willy.com/some-group/some-project.git
SSH Clone URL:  git@gitlab.willy.com:some-group/some-project.git
Elasticsearch:  no
Geo:            no
Using LDAP:     no
Using Omniauth: yes
Omniauth Providers: openid_connect
GitLab Shell
Version:        10.3.0
Repository storage paths:

default: /var/opt/gitlab/git-data/repositories GitLab Shell path: /opt/gitlab/embedded/service/gitlab-shell Git: /opt/gitlab/embedded/bin/git

Results of GitLab application Check

Expand for output related to the GitLab application check

(For installations with omnibus-gitlab package run and paste the output of: sudo gitlab-rake gitlab:check SANITIZE=true) Checking GitLab subtasks ...

Checking GitLab Shell ...

GitLab Shell: ... GitLab Shell version >= 10.3.0 ? ... OK (10.3.0) Running /opt/gitlab/embedded/service/gitlab-shell/bin/check Internal API available: OK Redis available via internal API: OK gitlab-shell self-check successful

Checking GitLab Shell ... Finished

Checking Gitaly ...

Gitaly: ... default ... OK

Checking Gitaly ... Finished

Checking Sidekiq ...

Sidekiq: ... Running? ... yes Number of Sidekiq processes ... 1

Checking Sidekiq ... Finished

Checking Incoming Email ...

Incoming Email: ... Reply by email is disabled in config/gitlab.yml

Checking Incoming Email ... Finished

Checking LDAP ...

LDAP: ... LDAP is disabled in config/gitlab.yml

Checking LDAP ... Finished

Checking GitLab App ...

Git configured correctly? ... yes Database config exists? ... yes All migrations up? ... y yes Database contains orphaned GroupMembers? ... no GitLab config exists? ... yes GitLab config up to date? ... yes Log directory writable? ... yes Tmp directory writable? ... yes Uploads directory exists? ... yes Uploads directory has correct permissions? ... yes Uploads directory tmp has correct permissions? ... skipped (no tmp uploads folder yet) Init script exists? ... skipped (omnibus-gitlab has no init script) Init script up-to-date? ... skipped (omnibus-gitlab has no init script) Projects have namespace: ... can't check, you have no projects Redis version >= 2.8.0? ... yes Ruby version >= 2.5.3 ? ... yes (2.6.3) Git version >= 2.22.0 ? ... yes (2.24.1) Git user has default SSH configuration? ... yes Active users: ... 1 Is authorized keys file accessible? ... yes Elasticsearch version 5.6 - 6.x? ... skipped (elasticsearch is disabled)

Checking GitLab App ... Finished

Checking GitLab subtasks ... Finished

Possible fixes

(If you can, link to the line of code that might be responsible for the problem)

Edited Jan 10, 2020 by Stan Hu