CN104636189B - Virtual machine deployment system and method based on Xen - Google Patents

Virtual machine deployment system and method based on Xen Download PDF

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CN104636189B
CN104636189B CN201510087347.9A CN201510087347A CN104636189B CN 104636189 B CN104636189 B CN 104636189B CN 201510087347 A CN201510087347 A CN 201510087347A CN 104636189 B CN104636189 B CN 104636189B
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virtual machine
user
deployment
server
request
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CN104636189A (en
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何慧
张宏莉
叶麟
詹东阳
赵尚杰
郭俊武
李明哲
胡西祥
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Harbin Institute of Technology
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Abstract

Virtual machine deployment system and method based on Xen, belong to virtual machine rapid deployment system field.Existing Xen virtual machines rapid deployment system can not be applied to large-scale cloud environmental demand, and the problem of can not dynamically change the software environment and IP address of virtual machine.The present invention is according to user's request, using front end and management system of the combination of JSP web page servers, Tomcat web page servers, MySQL database as front end system, front-end server and user mutual, and the configuration parameter information of the user's request obtained according to interaction, different instruction is sent to loaded server using the communication form in Libvirt controls storehouse, front end system chooses the increment mirror image in mirror image template storehouse using the keyization of the deployment way one deployment different operating system of incremental virtual machine, the virtual machine of keyization deployment different application；Virtual machine IP address is configured according to user's request information automation；Different operating system based on deployment, deployment different application virtual machine, can allow the life cycle of user's control virtual machine；The software environment of virtual machine can also dynamically be changed.

Description

Virtual machine deployment system and method based on Xen
Technical field
The present invention relates to a kind of virtual machine deployment system and method based on Xen.
Background technology
Virtual machine rapid deployment technology is the hot topic of current Virtualization Study.
XenFire is the Xen virtual machine rapid deployment systems of a single server.It can take quick portion on device at one Virtual machine, and the Dynamic Host Configuration Protocol server automatically dispose network provided using XEN platforms are provided.This method function is relatively simple, nothing Method disposes a variety of different virtual machines as needed.
MLN (Manage Large Network) is for the how virtual of platform with Xen and UML (User Mode Linux) Machine management software.The system proposes the virtual machine quick deployment method of template type.Template be operating system and combination of software and Into system image.The size of template mirror image depends on the size and the wherein installation size of software of operating system.User can be with Template corresponding to selection as needed, then replicate, dispose.The shortcomings that this method is that template is often bigger, and quantity is many It is more.Substantial amounts of hard drive space is taken, is that can expend substantial amounts of doubling time in deployment.
A kind of the shortcomings that Yuan Jinyan etc. is improved in MLN, it is proposed that the rapid deployment mechanism of multi-dummy machine.This method is by mould Plate is changed into the increment mirror image that basic system image adds software.Increment mirror image is preserved for behaviour using the method for writing duplication Make the modification of system, without going to change basic operating system mirror image.
Xen virtual machines rapid deployment system is disposed mainly for small-scale deployment, mainly unit, is not accounted for extensive The demand of cloud environment, next current technology can not dynamically change the software environment and IP address of virtual machine.
The content of the invention
The invention aims to solve existing Xen virtual machines rapid deployment system not being applied to large-scale cloud ring Border demand, and the problem of can not dynamically change the software environment and IP address of virtual machine, and propose a kind of based on the virtual of Xen Machine deployment system and method.
A kind of virtual machine deployment system and method based on Xen, the virtual machine deployment system include front-end server；Institute Stating front-end server includes：Webpage front-end subsystem and background function module, the webpage front-end subsystem include：
For the Tomcat web page servers interacted with user；
For recording the information of user, the MySQL database of network and virtual machine information is safeguarded；For user's inquiry, modification；
The background function module includes：
For the order sent according to user and the control module of the information of MySQL database；
The foundation image all for storage system and the mirror image template storehouse of increment mirror image；
Storehouse is controlled for the Libvirt between front-end server and loaded server as communication bridge.
A kind of virtual machine deployment method based on Xen, the dispositions method are realized by following steps：
Step 1: front-end server uses the combination of JSP web page servers, Tomcat web page servers, MySQL database Front end and management system as front end system, front-end server and user mutual, and the user's request obtained according to interaction Configuration parameter information, the communication form for controlling storehouse using Libvirt send different instruction to loaded server, and system chooses mirror image Increment mirror image in ATL, different operating system is disposed using the keyization of deployment way one of incremental virtual machine, a keyization is disposed The virtual machine of different application；
Step 2: the user's request information automation according to step 1 configures virtual machine IP address；
Step 3: the different operating system based on step 1 deployment, deployment different application virtual machine, can allow user Control the life cycle of virtual machine；The software environment of virtual machine can also dynamically be changed.
Beneficial effects of the present invention are：
The present invention be directed to current large-scale commercial cloud computing environment, it is necessary to system largely can dispose at a high speed it is multiple The problem of different operating system, virtual machine comprising different application.According to the IP of the IP automatic configuration virtual machines of user's request Address, substantial amounts of increment mirror image is made for each operating system, by these increment mirror images take up space all very littles, during deployment Need not take up substantial amounts of hard drive space.When user needs largely to dispose specific operating system and software, it is only necessary to replicate Corresponding increment mirror image, it is not necessary to replicate basic operating system mirror image, realize a key rapid deployment different operating system, difference The virtual machine of application, so as to which 80% or so will be reduced the time required to deployment operation system.On the basis for the operating system disposed On, user can be allowed quickly to control the life cycle of virtual machine, and in the quick software environment and IP for changing virtual machine of dynamic Address is convenient, by the way that the original increment mirror image of target virtual machine is abandoned, then adds the side of the increment mirror image containing corresponding software Method batch is disposed, and deployment speed is improved into 60-70%, that is, realizes the process for being automated as virtual machine addition application, batch is disposed Installation is easily managed.
Brief description of the drawings
Structural representation when Fig. 1 is runed between deployment system of the present invention and user and loaded server；
Fig. 2 is the flow chart that a keyization of the present invention disposes different operating system；
Fig. 3 is the flow chart of automatic configuration virtual machine IP address of the present invention；
Fig. 4 is the flow chart of the life cycle of user's control virtual machine of the present invention；
Fig. 5 is the relation schematic diagram of operational order of the present invention；
Fig. 6 adds application schematic diagram for automation of the present invention.
Embodiment
Embodiment one：
The virtual machine deployment system based on Xen of present embodiment, as shown in figure 1, the virtual machine deployment system includes Front-end server；The front-end server forms overall operation system, the front end services with user and one group of loaded server Device includes：Webpage front-end subsystem and background function module, the webpage front-end subsystem include：
For the Tomcat web page servers interacted with user；
For recording the information of user, the MySQL database of network and virtual machine information is safeguarded；For user's inquiry, modification；
The background function module includes：
For the order sent according to user and the information of MySQL database, the API in Libvirt controls storehouse is called to apply Routine interface controls the control module of each loaded server Xen platform with SSH protocol remotes；
The foundation image and increment mirror image all for storage system, the NFS mirrors of service are provided for each loaded server As ATL；Each loaded server uses hard disk mirror-image of the increment mirror image as virtual machine in mirror image template storehouse；
Storehouse is controlled for the Libvirt as communication bridge between front-end server and loaded server.
Embodiment two：
The virtual machine deployment method based on Xen of present embodiment, the dispositions method are realized by following steps：
Step 1: front-end server uses the combination of JSP web page servers, Tomcat web page servers, MySQL database Front end and management system as front end system, front-end server and user mutual, and the user's request obtained according to interaction Configuration parameter information, the communication form for controlling storehouse using Libvirt send different instruction to loaded server, and system chooses mirror image Increment mirror image in ATL, different operating system is disposed using the keyization of deployment way one of incremental virtual machine, a keyization is disposed The virtual machine of different application；
Step 2: the user's request information automation according to step 1 configures virtual machine IP address；
Step 3: the different operating system based on step 1 deployment, deployment different application virtual machine, can allow user Control the life cycle of virtual machine；The software environment of virtual machine can also dynamically be changed.
Wherein, JSP web page servers (Java Server Pages) are the network programming extensions of Java language.It is by Servlet improves what is formed, realizes support of the Html language to Java.JSP web page servers as Servlet, be What server end performed, the result return of execution is Html forms, therefore user is browsed by browser can.Work as user When accessing the page of JSP web page servers, server can first carry out the program in the page, by the result of execution together with existing Html codes together return to browser, so as to realize the function of dynamic web page.
Tomcat web page servers are a kind of free Web servers all the fashion.It is one of Apache foundations Core project, due to the support of the companies such as Sun, it supports JSP the and Servlet specifications of latest edition.Tmocat servers Perfect in shape and function, advanced technology, stable performance, therefore have been widely recognized.
MySQL database is a database operating system of open source code, is under the jurisdiction of under oracle.It is a kind of Relational database, there is provided the support of a variety of programming languages.MySQL database supports a variety of storage engines, and with visualization Management tool, support at present most of operating systems.Allow user to connect database using various protocols such as TCP, JDBC, be User provides easily interface.The features such as due to MySQL database superior performance, lightweight and portable in volume, the favor of user is obtained, Become one of presently the most popular database.
Embodiment three：
Unlike embodiment two, the dispositions method of the virtual machine based on Xen of present embodiment, step 1 The keyization of deployment way one for using incremental virtual machine disposes the process of different operating system as shown in Figure 2：
Step 1 one：User configures the various parameters of virtual machine on webpage front-end；
Step 1 two：Tomcat web page servers are by the configuration parameter Data Enter MySQL database of user's request；
Step 1 three：Tomcat web page servers call control module to start to dispose；
Step 1 four：Control module reads the configuration parameter information of user's request from MySQL database；
Step 1 five：Control module chooses template according to the configuration parameter information of user's request in mirror image template storehouse, and Replicate template and prepare application；
Step 1 six：Control module calls the API application programming interfaces in Libvirt controls storehouse, and API is that application program connects Mouthful, the abbreviation for being Application Programming Interface, also known as API, be software systems not Pact orientation loaded server with part linking sends control instruction；
Step 1 seven：The Libvirt of front-end server controls storehouse by SSH protocol security shell protocols, for providing peace The agreement of full property sends control instruction to loaded server；
Step 1 eight：The Libvirt control storehouse forward end server return command implementing results of loaded server；
Step 1 nine：Control module reads implementing result；
Step 1 ten：By implementing result typing MySQL database.
Embodiment four：
Unlike embodiment three, the dispositions method of the virtual machine based on Xen of present embodiment, step 1 The process that one user configures the various parameters of virtual machine on webpage front-end is that user is in the front-end interface of front end system By user's manual configuration memory size, virtual machine IP address, server ip address, hard disk size, loaded server IP address, void These parameters of plan machine OS Type.
VME operating system type：Due to network need by several operation systems type Imaginary Mechanism into, therefore grasp User configuration is needed as system type.In order to keep the authenticity of network, system needs to support most of popular operating system Type.The OS Type supported at present has：Ubuntu, CentOS, Debian, Windows7 etc., due to needing what is supported OS Type is more, therefore Xen platforms run virtual machine using HVM patterns.
Memory size, hard disk size：Virtual machine is run on loaded server, therefore the internal memory of each virtual machine is general not Can be too big.Because virtual machine employs increment mirror image, so the configuration of hard disk size has little significance.But due to server hard disc Size is limited, therefore each virtual machine should have a upper limit.
Virtual machine IP address：The topological structure of network where virtual machine IP address determines virtual machine, user, which passes through, to be configured The IP address of numerous virtual machines can need to change the topological structure of network according to oneself.
Loaded server IP address：Because system is made up of numerous loaded servers, it is therefore desirable to where configuring virtual machine The IP address of server.Loaded server is the undertaking virtual machine operation of the task, and the hard disk of virtual machine is assembled using NFS is unified In a server, therefore the management of hard disk is more convenient.
Embodiment five：
Unlike embodiment two, three or four, the deployment side of the virtual machine based on Xen of present embodiment Method, the process of the virtual machine of keyization deployment different application described in step 1 are that the Libvirt controls storehouse in initialization Afterwards, the Xen platforms of remote load server can be connected；Afterwards according to the configuration parameter information configuration virtual machine creating of user's request Parameter, while configure good corresponding increment mirror image；After the completion of all configurations, sent to the Xen platforms of remote load server Create order；The EP (end of program) if order runs succeeded, reported an error if order execution is unsuccessful.
Embodiment six：
Unlike embodiment five, the dispositions method of the virtual machine based on Xen of present embodiment, due to being System is made up of numerous loaded servers, it is therefore desirable to which the IP address of server where configuring virtual machine, loaded server are simply held The task of virtual machine operation is carried on a shoulder pole, the hard disk of virtual machine is uniformly gathered in a server using NFS file system, to configure void The IP address of server where plan machine, make the management of hard disk more convenient.
And Xen platforms support three kinds of virtual network patterns：Network bridging pattern, route pattern, virtual network connection mode [13].Network bridging pattern needs to generate a bridge in physical machine, and with physical machine network interface card (eth0) for network egress. This pattern can allow virtual machine and physical machine while under network segment, with run on physical machine where LAN other things Reason machine is identical, and other main frames can remotely connect the virtual machine in LAN.Route pattern will use under route matrix Iptables mechanism is route.As all bags that physical interface is received by handled by the network IP layer in driving domain. Driving domain (dom0) searches routing table entry and forwards the packets to different Client IP address.Under route pattern, domain is driven Connect 2 different network segments：The network segment of the internal network segment used by client computer and connection external network.Virtual network pattern is same A bridge virbr0 can be generated, but the Microsoft Loopback Adapter of virtual machine bridges without the network interface card with physical machine.Host is to virtual Machine provides DHCP service, therefore virtual machine can be allowed to obtain ip addresses automatically.
In these three patterns, the only network interface card of network bridging pattern and physical machine is directly connected to, and other both of which will Virtual machine Microsoft Loopback Adapter is kept apart with physical network card, safer.The system acquiescence uses bridge connection mode, so can be with Make all machines in virtual network all under network, while can be truer with network.Network bridge mode is that do not have Dynamic Host Configuration Protocol server distributes ip addresses, therefore can not configure the ip of virtual machine according to the demand of user in default situations.
In order to which by the virtual machine ip automatic configurations of user configuration, into virtual machine, the virtual machine in system is being started shooting The script at one automatic configuration networking of meeting automatic running, the script are starting with automatic start after system boot after startup The Network conf iotag. module that afterwards numbering of virtual machine can be sent in Dom0, Network conf iotag. module inquire the void from database Be sent to virtual machine after the network configuration of plan machine so that virtual machine can according to profile information automatic configuration networking, Carry out automatic configuration virtual machine IP address as shown in Fig. 3, process are：
Step 2 one, by server IP in a network may change, therefore the client in virtual machine uses The form forward end server send configuration of broadcast is asked, and the numbering for the virtual machine for sending request is included in the configuring request；
After step 2 two, front-end server receive the configuring request of client, according to the configuration parameter information of user's request, Configuration information is returned to client, the data format of the configuration information is as shown in table 1：
Virtual machine numbers (2) Ip addresses (15) Subnet mask (15) Gateway (15)
The data format of the configuration information of table 1；
Step 2 three, client change virtual machine network configuration after receiving the configuration information that front-end server is sent, and complete Backward front-end server returns to the result of configuration；
The backward client of feedback that step 2 four, front-end server receive client sends confirmation, and updates number According to storehouse.
Embodiment eight：
Unlike embodiment three, four or six, the deployment side of the virtual machine based on Xen of present embodiment Method, as shown in figure 4, the process of the life cycle of user's control virtual machine is described in step 3,
Step 3 one, front end system provide a user various virtual machine configurations and operation information；
Step 3 two, user control start, shutdown, pause, recovery, the destruction deployment of virtual machine soft on webpage front-end Part；
Step 3 three, Tomcat web page servers are by the command information typing MySQL database of user；
Step 3 four, Tomcat web page servers call control module to implement order；
Step 3 five, control module read user command information from MySQL database；
Step 3 six, control module call the API application programming interfaces in Libvirt controls storehouse to send control to loaded server System instruction；
Step 3 seven, the Libvirt control storehouses of front-end server send control to loaded server by SSH agreements and referred to Order；
Step 3 eight, the Libvirt control storehouse forward end server return command implementing results of loaded server；
Step 3 nine, control module read implementing result；
Step 3 ten, by implementing result typing MySQL database；
If step 3 11, implementing result are to destroy virtual machine, corresponding mirror image in mirror image template storehouse is deleted；
Wherein, the life cycle of virtual machine is made up of the operational order for starting shooting, shut down, suspending, recover, destroying, virtual machine Execution of the Xen virtual platforms for two operational orders of starting shooting, shut down be to send start and shutdown two to virtual machine Signal, signal need not be sent to virtual machine by suspending and recover the two operational orders, directly be completed by VMM layer, aforesaid operations The relation of order is as shown in Figure 5.In addition, Libvirt primary functions are made that expression in Figure 5：
Dom.create (), represent：Start,
Dom.shutdown (), represent：Shutdown,
Dom.suspend (), represent：Pause,
Dom.resume (), represent：Recover,
Dom.undifine (), represent：Destroy.
Embodiment nine：
Unlike embodiment eight, the dispositions method of the virtual machine based on Xen of present embodiment, step 3 The software environment that the dynamic changes virtual machine is to automate addition application, and process is：When user sends the life of application deployment After order, system abandons the original increment mirror image of target virtual machine, increment mirror image of the addition containing corresponding software, completes increment type The application deployment of mirror-image fashion.Automation addition application schematic diagram is as follows：Automation addition application schematic diagram as shown in Figure 6. The advantages of application deployment of increment type mirror-image fashion is that deployment is rapid, can batch application deployment, due to virtual machine number in network Measure the benefit numerous, this batch application deployment have the reduction set-up time, are easily managed.Therefore, virtual machine is automated as to add It is very necessary to add application.

Claims (4)

  1. A kind of 1. virtual machine deployment method based on Xen, it is characterised in that：The dispositions method is realized by following steps：
    Step 1: front-end server uses the combination conduct of JSP web page servers, Tomcat web page servers, MySQL database The front end of front end system and management system, front-end server and user mutual, and the configuration of the user's request obtained according to interaction Parameter information, the communication form for controlling storehouse using Libvirt send different instruction to loaded server, and system chooses mirror image template Increment mirror image in storehouse, different operating system is disposed using the keyization of deployment way one of incremental virtual machine, a keyization disposes difference The virtual machine of application；
    The keyization of deployment way one for using incremental virtual machine dispose the process of different operating system for：
    Step 1 one：User configures the various parameters of virtual machine on webpage front-end；
    Step 1 two：Tomcat web page servers are by the configuration parameter Data Enter MySQL database of user's request；
    Step 1 three：Tomcat web page servers call control module to start to dispose；
    Step 1 four：Control module reads the configuration parameter information of user's request from MySQL database；
    Step 1 five：Control module chooses template according to the configuration parameter information of user's request in mirror image template storehouse, and replicates Template prepares application；
    Step 1 six：Control module calls the API application programming interfaces in Libvirt controls storehouse to refer to loaded server transmission control Order；
    Step 1 seven：The Libvirt control storehouses of front-end server send control instruction by SSH agreements to loaded server；
    Step 1 eight：The Libvirt control storehouse forward end server return command implementing results of loaded server；
    Step 1 nine：Control module reads implementing result；
    Step 1 ten：By implementing result typing MySQL database；
    The Libvirt controls storehouse upon initialization, can connect the Xen platforms of remote load server；Afterwards according to user The configuration parameter information configuration virtual machine creating parameter of demand, while configure good corresponding increment mirror image；Completed in all configurations Afterwards, establishment order is sent to the Xen platforms of remote load server；The EP (end of program) if order runs succeeded, if order Perform unsuccessful, report an error；
    Step 2: the user's request information automation according to step 1 configures virtual machine IP address；
    The process of the automatic configuration virtual machine IP address is：
    Client in step 2 one, virtual machine is using the form forward end server send configuration request of broadcast, the configuration The numbering for the virtual machine for sending request is included in request；
    After step 2 two, front-end server receive the configuring request of client, according to the configuration parameter information of user's request, to visitor Family end returns to configuration information；
    Step 2 three, client change virtual machine network configuration after receiving the configuration information that front-end server is sent, and complete backward Front-end server returns to the result of configuration；
    The backward client of feedback that step 2 four, front-end server receive client sends confirmation, and updates the data storehouse；
    Step 3: the different operating system based on step 1 deployment, deployment different application virtual machine, can allow user's control The life cycle of virtual machine；The software environment of virtual machine can also dynamically be changed.
  2. A kind of 2. virtual machine deployment method based on Xen according to claim 1, it is characterised in that：Used described in step 1 one The process that family configures the various parameters of virtual machine on webpage front-end is that user is in the front-end interface of front end system by user's hand Dynamic configuration memory size, virtual machine IP address, hard disk size, loaded server IP address, VME operating system type these Parameter.
  3. A kind of 3. virtual machine deployment method based on Xen according to claim 2, it is characterised in that：User described in step 3 The process for controlling the life cycle of virtual machine is,
    Step 3 one, front end system provide a user various virtual machine configurations and operation information；
    Step 3 two, user control the start of virtual machine, shutdown on webpage front-end, pause, recovery, destroy deployment software；
    Step 3 three, Tomcat web page servers are by the command information typing MySQL database of user；
    Step 3 four, Tomcat web page servers call control module to implement order；
    Step 3 five, control module read user command information from MySQL database；
    Step 3 six, control module call the API application programming interfaces in Libvirt controls storehouse to refer to loaded server transmission control Order；
    Step 3 seven, the Libvirt control storehouses of front-end server send control instruction by SSH agreements to loaded server；
    Step 3 eight, the Libvirt control storehouse forward end server return command implementing results of loaded server；
    Step 3 nine, control module read implementing result；
    Step 3 ten, by implementing result typing MySQL database；
    If step 3 11, implementing result are to destroy virtual machine, corresponding mirror image in mirror image template storehouse is deleted；
    Wherein, the life cycle of virtual machine is made up of the operational order for starting shooting, shut down, suspending, recover, destroying, the Xen of virtual machine Execution of the virtual platform for two operational orders of starting shooting, shut down is to send two signals of start and shutdown to virtual machine, Signal need not be sent to virtual machine by suspending and recover the two operational orders, directly be completed by VMM layer.
  4. A kind of 4. virtual machine deployment method based on Xen according to claim 3, it is characterised in that：Dynamic described in step 3 The software environment for changing virtual machine is to automate addition application, and process is：After user sends the order of application deployment, system The original increment mirror image of target virtual machine is abandoned, increment mirror image of the addition containing corresponding software, completes increment type mirror-image fashion Application deployment.
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