Issue
When installing Gitlab by default Nginx and Postgres .. among other things are installed regardless of whether you have them already or not. So since I have these two already, I am trying to configure gitlab to use them, I have done this for Nginx, Using:
$ vi /etc/gitlab/gitlab.rb:
# Disable GitLab's nginx completely
nginx['enable'] = false
# Set external web user which is 'nginx' on CentOS 7
web_server['external_users'] = ['nginx']
but I need to know how to do the same postgres.
Solution
According to this doc, put this in /etc/gitlab/gitlab.rb :
# Disable the built-in Postgres
postgresql['enable'] = false
# Fill in the values for database.yml
gitlab_rails['db_adapter'] = 'postgresql'
gitlab_rails['db_encoding'] = 'utf8'
gitlab_rails['db_host'] = '127.0.0.1'
gitlab_rails['db_port'] = '5432'
gitlab_rails['db_username'] = 'foo'
gitlab_rails['db_password'] = 'bar'
And run this command to apply this values : sudo gitlab-ctl reconfigure. Also you need to seed your database if you choose an external one. This command will do it with omnibus-gitlab: sudo gitlab-rake gitlab:setup
Answered By - PierreF Answer Checked By - Candace Johnson (WPSolving Volunteer)