theforeman/puppet-foreman_proxy — pull request #45 by domcleal (2013-03-14 11:24:57+00:00)
Title: Change manage_sudoers parameter to only exclude the /etc/sudoers.d resource

I think this will be more helpful, having just run into the problem that @mcanevet did in GH-41 myself! This allows the proxy module then to manage the foreman_proxy sudoers file, but for an external sudo module (if used) to manage the directory it's in.