This paper focuses on integrating Data Plane Development Kit (DPDK) and Service Function Chaining (SFC) on the OpenStack cloud OS to support network coding, enabling the OpenStack instance to function as a virtualized network coding service. The main points are: comparing OpenvSwitch-DPDK with native OpenvSwitch to confirm DPDK's significant network throughput improvement, using SFC to arrange packet processing sequences of instances for varying network coding functionalities, and combining OpenvSwitch and the kernel inside each instance to enable network coding. Performance evaluation and results analysis are presented, demonstrating the feasibility of network coding as a service on any virtual machine with a commodity CPU. Future work includes advancing network coding function virtualization with more automation and intelligence.