Thanks!
The debug log for production.log is still the same of the one posted on first post, the foreman-proxy one is:
2019-12-16T12:18:41 [D] accept: ::ffff:10.140.16.230:50680
2019-12-16T12:18:41 [D] Rack::Handler::WEBrick is invoked.
2019-12-16T12:18:41 1f66fdf2 [I] Started GET /ansible/roles
2019-12-16T12:18:41 1f66fdf2 [I] Finished GET /ansible/roles with 200 (2.12 ms)
2019-12-16T12:18:41 [D] close: ::ffff:10.140.16.230:50680
2019-12-16T12:18:41 [D] accept: ::ffff:10.140.16.230:50682
2019-12-16T12:18:41 [D] Rack::Handler::WEBrick is invoked.
2019-12-16T12:18:41 1f66fdf2 [I] Started GET /ansible/roles/variables
2019-12-16T12:18:41 1f66fdf2 [I] Finished GET /ansible/roles/variables with 200 (9.18 ms)
2019-12-16T12:18:41 [D] close: ::ffff:10.140.16.230:50682
2019-12-16T12:18:41 [D] accept: ::ffff:10.140.16.230:50684
2019-12-16T12:18:41 [D] Rack::Handler::WEBrick is invoked.
2019-12-16T12:18:41 67a243a3 [I] Started GET /ansible/roles
2019-12-16T12:18:41 67a243a3 [I] Finished GET /ansible/roles with 200 (1.08 ms)
2019-12-16T12:18:41 [D] close: ::ffff:10.140.16.230:50684
2019-12-16T12:18:41 [D] accept: ::ffff:10.140.16.230:50686
2019-12-16T12:18:41 [D] Rack::Handler::WEBrick is invoked.
2019-12-16T12:18:41 67a243a3 [I] Started GET /ansible/roles/variables
2019-12-16T12:18:41 67a243a3 [I] Finished GET /ansible/roles/variables with 200 (5.34 ms)
2019-12-16T12:18:41 [D] close: ::ffff:10.140.16.230:50686
and 10.140.16.230 is the proxy.
Just a stupid question (who can help me to have a brainstorming 
): is the smart proxy checking for a direcotry named “variables” or “/plugin/variables” into /etc/ansible?
The rpm or the git of openscap doesn’t have it:
[ /etc/ansible/roles/theforeman.foreman_scap_client]# du -ah
4.0K ./.flake8
4.0K ./.gitignore
4.0K ./.travis.yml
32K ./LICENSE
8.0K ./README.md
4.0K ./defaults/main.yml
4.0K ./defaults
4.0K ./files/foreman_scap_client_facts.rb
4.0K ./files
4.0K ./meta/main.yml
4.0K ./meta/version.yml
4.0K ./meta/.galaxy_install_info
12K ./meta
4.0K ./molecule/default/molecule.yml
4.0K ./molecule/default/playbook.yml
4.0K ./molecule/default/tests/test_default.py
4.0K ./molecule/default/tests
4.0K ./molecule/default/yaml-lint.yml
16K ./molecule/default
16K ./molecule
4.0K ./requirements.txt
4.0K ./tasks/main.yml
4.0K ./tasks
4.0K ./templates/config.yaml.j2
4.0K ./templates/cron.j2
8.0K ./templates
4.0K ./variables
and the variables are into defaults/main.yml.
Thanks