Fixes #36898 - Add rack-mini-profiler for profiling

[m-bucher]

Packaging PR: https://github.com/theforeman/foreman-packaging/pull/9953

[m-bucher]

Agreed, would it make sense to move the bullet-gem into the profiling-group as well?

[ekohl]

Possibly, but it's only enabled in development mode: https://github.com/theforeman/foreman/blob/8bd953dbdde34fd99ca3033905ebfa2b102b8fa6/config/environments/development.rb#L47-L56

So if you move it to profiling (which you also intend to be usable in production mode) the I'd expect it to setup to also happen in the production environment.

[m-bucher]

I tried it, but the bullet.log could not be written in production due to missing permissions :-(

[ekohl]

That surprises me because https://github.com/flyerhzm/bullet#configuration states:

Bullet.bullet_logger: log to the Bullet log file (Rails.root/log/bullet.log)

in production Rails.root is /usr/share/foreman and /usr/share/foreman is a symlink to /var/log/foreman, which is owned by foreman. So it should be able to write there.

[sbernhard]

Branching was already done some weeks ago. Can we continue with this?