Thank you all.
Answering myself.
cd /usr/share/ovirt-engine/ansible-runner-service-project
ansible-runner --rotate-artifacts 20 --artifact-dir
/usr/share/ovirt-engine/ansible-runner-service-project/artifacts -m ping --hosts all[0]
run /usr/share/ovirt-engine/ansible-runner-service-project
This will run the "ping" module on the first host, it will fail because i did
not provide any private key but it will cleanup artifacts and will leave only 20 of them.
Solved :)