We install gitlab to /usr/share/gitlab (rails root) and symlink /usr/share/gitlab/config to /etc/gitlab and this was working fine till 10.7.7. Now when trying to update the package to 10.8.7, it fails when running rake db:migrate with this error. ``` rake aborted! Errno::ENOENT: No such file or directory @ rb_sysopen - /etc/config/gitlab.yml /usr/share/gitlab/config/initializers/1_settings.rb:4:in `<top (required)>' /usr/share/gitlab/config/environment.rb:11:in `<top (required)>' Tasks: TOP => db:migrate => environment (See full trace by running task with --trace) ``` app_root is correctly set in /etc/default/gitlab and config/environment.rb should use this variable to load gitlab.yml correctly instead of using relative path. cc @stanhu @balasankarc