I. Introduction
Software-defined networks (SDN) and Network Function Virtualization(NFV) provide network operators with a cost-effective and flexible method [1] to deliver end-to-end services to their end users. NFV removes the dependency of network functions on vendor-specific hardware resources. It allows network operators to use virtual network functions(VNF) to provide their services. These VNFs can run on standard commodity hardware inside a Virtual Machine or a Container [2]. In recent years, Containers offer low cost, low maintenance, low provisioning time, and easy deployment as compared to virtual machines. When the virtual network functions are containerized, these are known as Cloud-Native Network functions (CNFs).