The recent spread of cloud technologies and new virtualization paradigms has created new possibilities in the way telecom operators offer network services, such as parental control services, to residential clients. The transition to a cloud-native-based context marked the evolution of a well-known technology in the world of computer networks: Network Function Virtualization (NFV). In a standard NFV scenario, Virtual Netowork Functions (VNFs) are deployed as virtual machines on physical servers; in a cloud-native NFV scenario, however, network functions, which are now called Cloud Native Network Functions (CNFs), run inside containers and are possibly managed through a container orchestrator system, such as Kubernetes.