Mattermost Installation with Omnibus GitLab

mattermost-gitlab.patch

--- /etc/gitlab/gitlab.rb.ssl   2017-11-17 01:32:09.200968784 +0000
+++ /etc/gitlab/gitlab.rb       2017-11-17 01:52:59.928804825 +0000
@@ -1068,7 +1068,7 @@
 ##! Docs: https://docs.gitlab.com/omnibus/gitlab-mattermost
 ################################################################################

-#mattermost_external_url 'https://mattermost.demo.pg1x.com'
+mattermost_external_url 'https://mattermost.demo.pg1x.com'

 #mattermost['enable'] = false
 # mattermost['username'] = 'mattermost'
@@ -1159,9 +1159,9 @@
 # mattermost['gitlab_id'] = "12345656"
 # mattermost['gitlab_secret'] = "123456789"
 # mattermost['gitlab_scope'] = ""
-# mattermost['gitlab_auth_endpoint'] = "http://gitlab.example.com/oauth/authorize"
-# mattermost['gitlab_token_endpoint'] = "http://gitlab.example.com/oauth/token"
-# mattermost['gitlab_user_api_endpoint'] = "http://gitlab.example.com/api/v4/user"
+mattermost['gitlab_auth_endpoint'] = "https://gitlab.demo.pg1x.com/oauth/authorize"
+mattermost['gitlab_token_endpoint'] = "https://gitlab.demo.pg1x.com/oauth/token"
+mattermost['gitlab_user_api_endpoint'] = "https://gitlab.demo.pg1x.com/api/v4/user"

 # mattermost['aws'] = {'S3AccessKeyId' => '123', 'S3SecretAccessKey' => '123', 'S3Bucket' => 'aa', 'S3Region' => 'bb'}