Añado check_multi para centralizar la configuración de checks a ejecutar y enviarlos con un solo comando
Install and configure check_multi to trigger all passive checks with one nrpe command
By default checks are passive
All checks are configured to be executed with check_multi
Merge pull request #50 from adrianlzt/feature/passive_checks

Feature/passive checks
Moved hiera postgres backend to the puppet configuration instead in the vagrant provision