From a technical perspective, roles and profiles are classes inside modules. Usually, modules are put into the modules directory of an environment. But roles and profiles are different to modules, as they are implementations of modules and collections of implementations.
To reflect this different behavior, it is common practice to add another module directory to an environment. This configuration can be done in the environment.conf file inside an environment:
modulepath = site:modules:$basemodulepath
Within our example, we have added a new path to the module path setting: site. This directory resides inside our environment (/etc/puppetlabs/code/environments/production/site). This directory will have all of our roles and profiles: