Container creation method and system for function instance

The invention discloses a function instance container creation method and system, and the method comprises the steps: a function instance management module of a cloud management system obtains a logic switch and an available IP address from an IP address management module according to a virtual private cloud associated with a function instance in node equipment; the IP address management module selects an available IP address from a cache and feeds back the selected IP address to the function instance management module; the function instance management module writes an annotation for a container based on the received IP address, and marks a logic switch and the IP address associated with the container to generate definition information of the container; and the cloud management system initiates a request for creating the container according to the definition information of the container so as to complete a container creation task of the function instance. According to the technical scheme provided by the inve