Service orchestration method and apparatus in software-defined networking, and storage medium

A service orchestration apparatus in a Software Defined Networking, SDN, the SDN comprising an application layer and a controller layer, wherein the service orchestration apparatus comprises a processor and a memory storing instructions which are executable by the processor, wherein the instructions comprise an application engine function module and an application extension function module disposed in the application layer, wherein, the application engine function module is arranged to provide an application engine capability for the application layer of the SDN, and the application extension function module is arranged to extend a core function of the controller layer to provide an application;

• and, the instructions further comprises:
• a receiving unit, a first determination unit, a second determination unit, a loading unit and a resource applying unit, wherein,
• the receiving unit is arranged to trigger the first determination unit after receiving a request of using an SDN open network platform resource sent from an SDN application via an external application interface;
• the first determination unit is arranged to determine whether a current SDN open network platform resource meets the resource requested by the SDN application or not, and trigger the second determination unit when the resource requested by the SDN application is met;
• the second determination unit is arranged to determine whether the application engine function module and the application extension function module meet an execution of the SDN application or not, and trigger the loading unit when the execution of the SDN application is met;
• the loading unit is arranged to load an application engine function corresponding to the application engine function module or an application extension function corresponding to the application extension function module;
• and
• the resource applying unit is arranged to apply for the resource required by the SDN application from the controller layer according to the request of the SDN application, and allocate the applied resource to the loaded application engine function or application extension function.