GitLab directory

How to know exactly
where
GitLab directory in local install gitalb ee?

I have such message when tring to add new feature to existing gitlab ee install

sudo -u git -H /opt/gitlab/embedded/bin/bundle install

You are trying to install in deployment mode after changing
your Gemfile. Run bundle install elsewhere and add the
updated Gemfile.lock to version control.

If this is a development machine, remove the /opt/gitlab/embedded/service/gitlab-rails/Gemfile freeze
by running bundle config unset deployment.

The dependencies in your gemfile changed

You have added to the Gemfile:

  • newrelic_rpm (~> 3.5)

Please help what does it mean
Should i stop gitlab before doing it