【摘要】：隨著云計算數(shù)據(jù)中心的發(fā)展,軟件定義網(wǎng)絡(Software Defined Networks,SDN)及虛擬化技術(shù)越來越多地應用到數(shù)據(jù)中心。作為當前使用最廣泛的開源虛擬化技術(shù),OpenStack允許用戶部署私有云計算設施。SDN所具有的控制與轉(zhuǎn)發(fā)相分離的架構(gòu)也使其天然地適用于數(shù)據(jù)中心網(wǎng)絡環(huán)境。在當前的SDN控制器中,Ryu控制器具有輕量級、高效率、模塊化等特點,目前已成為SDN內(nèi)常用的控制器之一。然而由于軟件定義數(shù)據(jù)中心所需的網(wǎng)絡功能種類繁多,當使用Ryu作為軟件定義數(shù)據(jù)中心的控制器時,需要在其上開發(fā)相應的管控功能模塊。一方面功能模塊的增加使得控制器本身模塊的管理變得更加復雜,另一方面Ryu缺乏直觀的交互平臺,OpenStack雖然提供了交互界面,但無法滿足與Ryu的融合需求,因此實現(xiàn)軟件定義數(shù)據(jù)中心的統(tǒng)一控制與調(diào)度系統(tǒng)具有一定的應用與研究價值。本論文通過對軟件定義數(shù)據(jù)中心需求的分析,設計并實現(xiàn)了軟件定義數(shù)據(jù)中心的管理系統(tǒng),解決了軟件定義數(shù)據(jù)中心計算層與網(wǎng)絡層缺乏統(tǒng)一有效管理的問題。具體研究內(nèi)容如下:(1)對軟件定義數(shù)據(jù)中心資源管控的需求進行了分析,基于Node.js的Express框架設計了 SDMS (Software Defined Management System,軟件定義管理系統(tǒng))管理系統(tǒng),該系統(tǒng)在MVC設計模式的基礎上進行了拓展,設計了包含數(shù)據(jù)處理模塊、前端通信模塊和核心調(diào)度模塊的軟件結(jié)構(gòu)。利用REST和消息隊列設計并實現(xiàn)了 SDMS系統(tǒng)與SDN的控制層以及Web前端的通信機制。使用Mongoose模塊對MongoDB的數(shù)據(jù)集合進行了設計。(2)設計并實現(xiàn)了 SDMS管理系統(tǒng)的業(yè)務功能。SDMS管理系統(tǒng)主要功能模塊包括數(shù)據(jù)中心資源管理、日志系統(tǒng)、設備監(jiān)控、用戶認證以及OpenStack集成。其中數(shù)據(jù)中心資源管理、日志系統(tǒng)和設備監(jiān)控三個功能模塊的數(shù)據(jù)由管理系統(tǒng)或Ryu控制器采集,前端通過異步的方法調(diào)用上述數(shù)據(jù)并在Web頁面上進行渲染。用戶認證主要分為Web頁面和接口認證,分別通過cookie和token對訪問權(quán)限進行控制,同時與OpenStack的Keystone模塊保持身份數(shù)據(jù)的一致。OpenStack集成模塊通過代理的方式對Horizon模塊進行了集成調(diào)度,使管理系統(tǒng)的用戶能夠訪問Dashboard交互界面。最后,在軟件定義數(shù)據(jù)中心實驗平臺上進行了管理系統(tǒng)的搭建,對各個功能的實現(xiàn)進行了驗證,并進行了性能測試。結(jié)果表明系統(tǒng)能夠滿足目前數(shù)據(jù)中心的功能需求,并且管理系統(tǒng)能夠在較高的負載下保持平穩(wěn)運行。
[Abstract]:With the development of cloud computing data center, software-defined network (Software Defined Networks,SDN) and virtualization technology are more and more applied to data center. As the most widely used open source virtualization technology, OpenStack allows users to deploy private cloud computing facilities. In the current SDN controller, the Ryu controller has the characteristics of lightweight, high efficiency, modularization and so on. It has become one of the commonly used controllers in SDN at present. However, due to the variety of network functions required by software-defined data center, when Ryu is used as the controller of software-defined data center, it is necessary to develop the corresponding control and control function module on it. On the one hand, the addition of functional modules makes the management of controller modules more complex, on the other hand, Ryu lacks an intuitive interactive platform. Although OpenStack provides an interactive interface, it can not meet the needs of integration with Ryu. Therefore, the realization of the unified control and scheduling system of software-defined data center has certain application and research value. By analyzing the requirements of the software-defined data center, this paper designs and implements the management system of the software-defined data center, which solves the problem of the lack of unified and effective management between the computing layer and the network layer of the software-defined data center. The specific research contents are as follows: (1) the requirements of resource control in software-defined data center are analyzed, and the management system of SDMS (Software Defined Management System, software definition management system is designed based on Express framework of Node.js. The system is expanded on the basis of MVC design pattern, and the software structure including data processing module, front-end communication module and core scheduling module is designed. The communication mechanism between SDMS system and SDN and the front end of Web is designed and implemented by using REST and message queue. The Mongoose module is used to design the data set of MongoDB. (2) the business function of SDMS management system is designed and realized. The main function modules of SDMS management system include data center resource management, log system and equipment monitoring. User authentication and OpenStack integration. The data of the data center resource management, log system and device monitoring module are collected by the management system or Ryu controller. The front end invokes the above data through asynchronous method and renders on the Web page. User authentication is divided into Web page and interface authentication, which control access rights through cookie and token respectively, and keep identity data consistent with Keystone module of OpenStack. OpenStack integration module performs integration scheduling of Horizon module through proxy. Enables users of the management system to access the Dashboard interface. Finally, the management system is built on the experimental platform of software defined data center, the realization of each function is verified, and the performance test is carried out. The results show that the system can meet the functional requirements of the current data center, and the management system can keep running smoothly under high load.
【學位授予單位】：西南交通大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TP311.52;TP308

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