CN104484231A - Virtual machine switching system and method - Google Patents
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- CN104484231A CN104484231A CN201410854790.XA CN201410854790A CN104484231A CN 104484231 A CN104484231 A CN 104484231A CN 201410854790 A CN201410854790 A CN 201410854790A CN 104484231 A CN104484231 A CN 104484231A
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Abstract
The invention provides a virtual machine switching system. The virtual machine switching system is used for switching virtual machines when one virtual machine is abnormal, and comprises a base image setting module, a virtual machine generating module and an automatic switching module. The base image setting module is used for correspondingly setting and storing at least one virtual machine base image according to at least one virtual machine, and the virtual machine generating module is used for generating and starting the corresponding new virtual machine according to virtual machine information and virtual machine image information corresponding to the virtual machine when the virtual machine is abnormal. The automatic switching module is used for achieving switching between the new virtual machine and the corresponding abnormal virtual machine so that the new virtual machine can replace the abnormal virtual machine to work normally. The switching system achieves automatic switching between the new generated virtual machine and the abnormal virtual machine when the virtual machine works abnormally so that the new virtual machine can replace the abnormal virtual machine to work normally, operation is convenient, and continuity of services provided by the virtual machine can be guaranteed. The invention further provides an automatic virtual machine switching method.
Description
Technical field
The present invention relates to Intel Virtualization Technology, particularly relate to a kind of virtual machine switched system and changing method.
Background technology
At present; a physical server is invented the mutually isolated virtual server of multiple stage by server virtualization technology; every platform virtual server has independently CPU, internal memory, disk space and the network bandwidth; improve the service efficiency of resource; simplification system manages; in the use procedure of Intel Virtualization Technology, the security of the network information is that Intel Virtualization Technology normally uses needs to ensure, traditional network safety prevention adopts the protection system such as intrusion detection, firewall technology from the harm of network attack.
But, the inside run into during system cloud gray model and extraneous various labile factor, traditional safety protection technique is when virtual server occurs extremely as suffered wooden horse or virus attack, need manual intervention to operate to recover system, while inconvenient operation, affect the normal work of virtual server.
Summary of the invention
In view of this, the invention provides a kind of normally can work and easy to operate virtual machine switched system and changing method by guarantee virtual server when virtual server occurs abnormal.
A kind of virtual machine switched system, it is for carrying out virtual machine switching when virtual machine occurs abnormal, described virtual machine switched system comprises a foundation image and arranges module, a virtual machine generation module and an automatic switching module, described foundation image arranges module for arranging at least one virtual machine foundation image according at least one virtual machine correspondence and storing, the virtual machine image information that described virtual machine generation module is used for when Virtual Machine Worker occurs abnormal corresponding to virtual machine information and virtual machine generates corresponding new virtual machine and starts, described automatic switching module is used for carrying out switching to make new virtual machine replace abnormal virtual machine normally to work after described new virtual machine activation and between corresponding abnormal virtual machine.
A kind of virtual machine changing method, it is for carrying out virtual machine switching when virtual machine occurs abnormal, and described virtual machine changing method comprises the following steps:
At least one virtual machine foundation image is set according at least one virtual machine correspondence and stores;
Virtual machine image information when Virtual Machine Worker occurs abnormal corresponding to virtual machine information and abnormal virtual machine generates corresponding new virtual machine and starts;
Carry out switching to make new virtual machine replace abnormal virtual machine normally to work after described new virtual machine activation and between corresponding abnormal virtual machine.
Compared with prior art, virtual machine switched system provided by the invention and changing method arrange the virtual machine foundation image of module installation respective virtual machine by foundation image, occur abnormal generating corresponding new virtual machine as virtual machine image information when suffering virus attack corresponding to virtual machine information and abnormal virtual machine at Virtual Machine Worker, and utilize automatic switching module at newly-generated virtual machine and occur automatically switching between abnormal virtual machine, replace occurring that abnormal virtual machine normally works with the new virtual machine generated, safeguard without the need to manual intervention, easy to operate, thus ensure virtual machine occur abnormal as virtual machine when suffering virus attack the service that provides uninterruptedly proceed.
Accompanying drawing explanation
Fig. 1 is the module diagram of virtual machine switched system provided by the invention.
Fig. 2 is that in Fig. 1, virtual machine externally serves block diagram.
Fig. 3 generates new virtual machine when virtual machine occurs abnormal in Fig. 2 externally to serve block diagram.
Fig. 4 is the new virtual machine of startup and closedown externally serves block diagram after there is abnormal virtual machine.
Fig. 5 is the process flow diagram of virtual machine changing method provided by the invention
Main element symbol description
Virtual machine switched system 100
Foundation image arranges module 120
Mirror image reinforces module 130
Virtual machine activation module 140
Virtual machine generation module 160
Automatic switching module 180
Resource reclaim module 190
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, its a kind of virtual machine switched system 100 provided for embodiment of the present invention, it is for carrying out virtual machine switching when virtual machine occurs abnormal, and described virtual machine switched system 100 comprises a foundation image and arranges module 120, virtual machine activation module 140, virtual machine generation module 160 and an automatic switching module 180.
Described foundation image arranges module 120 for arranging at least one virtual machine foundation image according at least one virtual machine correspondence, be understandable that, the quantity of virtual machine is arranged according to need, in present embodiment, foundation image arranges module 120 and arranges virtual machine foundation image 1 and virtual machine foundation image 2 according to virtual machine 1 and virtual machine 2 are corresponding respectively.The virtual machine foundation image that foundation image arranges module 120 setting only comprises VME operating system, do not comprise application program, be understandable that, user generally selects corresponding virtual machine type according to actual needs, foundation image arranges the virtual machine type that module 120 selects according to user and arranges corresponding foundation image, foundation image can be user by mirror image based on one of the Internet download virtual machine image comprising the OS Type of user's needs, also can be that user makes mirror image based on a virtual machine image by mirror image tools oneself.In present embodiment, the virtual machine foundation image of setting is the virtual machine image downloaded, and be understandable that, the size of the virtual machine image of download is not likely the mirror image size that user needs, so need to customize the size of foundation image.
Such as, for in Windows operating system, the virtual machine image downloaded is corresponding C dish, C dish size only has 1 ~ 2G usually, and one is externally provided to the Windows Server of service, after installation application system, generally need C disk space to be 40G or more, therefore need to customize mirror image space.By order line, mirror image size is customized in KVM (kernel-basedVirtual Machine) virtual machine environment, such as, for mirror image increases the space of 5G, adopt " qemu-img resizetrusty-server-cloudimg-amd64-disk1.raw+5G) " arrange, to meet the user demand of application system.
Be understandable that, as shown in Figure 2, after virtual machine foundation image generates, foundation image can be uploaded to the virtual management platform of management server 200 to manage foundation image by command-line tool or graphic interface tool, corresponding virtual machine foundation image information comprises CPU quantity, amount of memory, hard disk size etc. store in a database.
Described virtual machine activation module 140 for needing according to user to install and after the configure user service routine that need load, then selects suitable virtual machine template and the virtual machine configuration corresponding with selected virtual machine template to start virtual machine according to information such as the running loads of the application system that virtual machine runs.The service routine loaded comprises transmission control protocol (Transmission Control Protocol, TCP), User Datagram Protocol (UserDatagram Protocol, and HTML (Hypertext Markup Language) (HyperText TransferProtocol UDP), the service routine such as HTTP), in present embodiment, virtual machine activation module 120 loads HTTP service routine, and all sessions (session) status information of the HTTP service routine loaded is stored in the database of system.
The resource of virtual machine template information definition required for virtual machine activation, comprise CPU quantity, amount of memory, hard disk size etc., configuration file defines the various trip informations of virtual machine and application system, and virtual machine template information and profile information generally direct storage in a database, start virtual machine after virtual machine and application system complete startup, externally can provide service, namely by the request of application proxy 300 response service.
For there is abnormal new virtual machine as corresponding in virtual machine image information generation when virtual machine suffers that virus, wooden horse etc. are attacked corresponding to virtual machine information and virtual machine in described virtual machine generation module 160, virtual machine information comprises all sessions (session) status information of the HTTP service routine occurring abnormal virtual machine template information, configuration file and abnormal virtual machine at Virtual Machine Worker.
See also Fig. 1 to Fig. 3, in present embodiment, time as abnormal in virtual machine 1 work appearance, virtual machine generation module 160 generates new virtual machine 3 according to all sessions (session) status information of the http service routine installed in the virtual machine module information of abnormal virtual machine 1 correspondence, the configuration file of abnormal virtual machine 1 correspondence and abnormal virtual machine 1.Be understandable that, when virtual machine is by virus attack, no matter whether virus attack virtual machine 1 is successful, and virtual machine generation module 160 can generate new virtual machine 3 automatically.
Described automatic switching module 180 switches to make new virtual machine replace abnormal virtual machine normally to work for carrying out after new virtual machine activation and between corresponding abnormal virtual machine, also namely after new virtual machine activation, close abnormal virtual machine, this virtual machine is stopped externally providing service, new virtual machine replaces abnormal virtual machine to work on, as shown in Figure 4, if virtual machine 1 is by after virus attack, closes virtual machine 1 after automatic switching module 180 starts new virtual machine 3 and replace virtual machine 1 to carry out work to make new virtual machine 3.Be understandable that, because the session status information of the HTTP service provided in abnormal virtual machine is stored in database, carry out when virtual machine switches, ensureing that HTTP service is continual and proceed.
For improving security of system, virtual machine switched system 100 also comprises a mirror image and reinforces module 130, and as shown in Figure 1, described mirror image is reinforced module 130 and reinforced for virtual machine foundation image foundation image being arranged to module 120 setting.The reinforcing of virtual machine foundation image is by the forced symmetric centralization to file, catalogue, process, service etc., effective restriction and disperseed the authority of original system keeper, combine integrity detection, the function such as Web filter protection and safety damped district spilling to file and service, common operating system can be upgraded from system, the rank of operating system provides certain immunity to various attack, prevents the destruction to operating system and data.
Correct installing operating system is comprised to the reinforcing process of virtual machine foundation image, the security configuration of up-to-date operating system security patch, operating system and application software is installed, system safety hazards strick precaution, system safety hazards test, system integrity backup, system account password reinforcing etc.
For Appropriate application memory source and hard drive space, virtual machine switched system 100 also comprises a resource reclaim module 190, as shown in Figure 1, described resource reclaim module 190 reclaims the memory source shared by abnormal virtual machine and hard drive space on the server when abnormal virtual machine is closed, other desired virtual machine can be given after recovery with reasonable employment, and remove all data and vestige on hard disk by the method for data cover, as write ' 0101 ' etc. without the information of concrete meaning on this internal memory or hard disk.Legacy data will be removed more thoroughly than formatting hard disk to hard disk by writing above-mentioned information, thoroughly eliminating by any data of attacking VME operating system.
Refer to Fig. 5, its a kind of virtual machine changing method provided for embodiment of the present invention, it is for carrying out virtual machine switching when virtual machine occurs abnormal, and described virtual machine changing method comprises the following steps:
S110: at least one virtual machine foundation image is set according at least one virtual machine correspondence and stores;
S120: install as required and configuration service program;
S130: select corresponding virtual machine template and the configuration file corresponding to selected virtual machine to start corresponding virtual machine as required;
S140: the virtual machine image information when Virtual Machine Worker occurs abnormal corresponding to virtual machine information and abnormal virtual machine generates corresponding new virtual machine and starts;
S150: carry out switching to make new virtual machine replace abnormal virtual machine normally to work after described new virtual machine activation and between corresponding abnormal virtual machine.
In step s 110, utilize foundation image that module 120 is set and virtual machine foundation image 1 and virtual machine foundation image 2 are set according to virtual machine 1 and virtual machine 2 are corresponding respectively.Be understandable that, virtual machine foundation image can be user by mirror image based on one of the Internet download virtual machine image comprising the OS Type of user's needs, also can be that user makes mirror image based on a virtual machine image by mirror image tools oneself.
In present embodiment, the virtual machine foundation image of setting is the virtual machine image downloaded, and the size of the virtual machine image of download is not likely the mirror image size that user needs, so need to customize the size of foundation image.Such as, by order line, virtual machine image size is customized in KVM (kernel-based VirtualMachine) virtual machine environment, the space that virtual machine image increases 5G if be required to be, then adopt " qemu-img resizetrusty-server-cloudimg-amd64-disk1.raw+5G) " arrange, to meet the user demand of application system.
Be understandable that, after virtual machine foundation image generates, foundation image can be uploaded to virtual management platform to manage foundation image by command-line tool or graphic interface tool, corresponding virtual machine foundation image information comprises CPU quantity, amount of memory, hard disk size etc. are stored in system database.
In the step s 120, virtual machine activation module 140 is utilized to need the HTTP service routine installed and configure user need load according to user.Be understandable that, user also can install corresponding service routine according to actual needs.In present embodiment, all sessions (session) status information of the HTTP service routine that virtual machine activation module 120 loads is stored in the database of system.
In step s 130, which, virtual machine activation module 140 is utilized to select suitable virtual machine template and the virtual machine configuration corresponding with selected virtual machine template to start virtual machine according to information such as the running loads of the application system that virtual machine runs.Virtual machine template defines the resource required for virtual machine activation, comprise CPU quantity, amount of memory, hard disk size etc., configuration file defines the various trip informations of virtual machine and application system, and generally direct storage is in a database for virtual machine template information and profile information.
In step S140, utilize virtual machine generation module 160 to occur at Virtual Machine Worker abnormal as generated corresponding new virtual machine according to virtual machine information and with the virtual machine image information corresponding to virtual machine when virtual machine suffers that virus, wooden horse etc. are attacked, virtual machine information comprises all sessions (session) status information of the HTTP service routine occurring abnormal virtual machine template information, configuration file and abnormal virtual machine.
In present embodiment, as shown in Figures 2 to 4, when virtual machine 1 works and occurs abnormal, virtual machine generation module 160 generates new virtual machine 3 according to all sessions (session) status information of HTTP service routine of installing in the configuration file of the virtual machine template information of abnormal virtual machine 1 correspondence, abnormal virtual machine 1 correspondence, abnormal virtual machine 1 and the information of virtual machine foundation image 1.Be understandable that, when virtual machine is by virus attack, no matter whether virus attack virtual machine 1 is successful, and virtual machine generation module 160 all can generate new virtual machine 3 automatically.
In step S150, utilize automatic switching module 180 after new virtual machine activation and occur carrying out switching to make new virtual machine replace abnormal virtual machine normally to work between abnormal virtual machine, also namely after new virtual machine activation, close abnormal virtual machine, this virtual machine is stopped externally providing service, new virtual machine replaces abnormal virtual machine to work on, if virtual machine 1 is by after virus attack, closes virtual machine 1 after automatic switching module 180 starts new virtual machine 3 and replace virtual machine 1 to carry out work to make new virtual machine 3.Be understandable that, because session (session) status information of the HTTP service provided in abnormal virtual machine stores in a database, carry out when virtual machine switches, ensureing that HTTP service is continual and proceed.
For improving security of system, further comprising the steps of between step S110 and step S120: the virtual machine foundation image set by reinforcing.
In described reinforcing step, the virtual machine foundation image utilizing mirror image reinforcing module 130 pairs of foundation image to arrange module 120 setting is reinforced, by the forced symmetric centralization to file, catalogue, process, service etc., effective restriction and disperseed the authority of original system keeper, combine integrity detection, the function such as Web filter protection and safety damped district spilling to file and service, common operating system can be upgraded from system, the rank of operating system provides certain immunity to various attack, prevents the destruction to operating system and data.
Correct installing operating system is comprised to the reinforcing process of virtual machine foundation image, the security configuration of up-to-date operating system security patch, operating system and application software is installed, system safety hazards strick precaution, system safety hazards test, system integrity backup, system account password reinforcing etc.
For Appropriate application memory source and hard drive space, further comprising the steps of after step s 150: to reclaim the memory source shared by abnormal virtual machine and hard drive space on the server when abnormal virtual machine is closed.
In described recycling step, resource reclaim module 190 is utilized to reclaim the memory source shared by abnormal virtual machine 1 and hard drive space on the server when occurring that abnormal virtual machine 1 is closed, other desired virtual machine can be given after recovery with reasonable employment, and remove all data and vestige on hard disk by the method for data cover, as to the information without concrete meaning such as this internal memory or hard disk write ' 0101 '.More thoroughly legacy data being removed by writing above-mentioned information than formatting hard disk to hard disk, thoroughly eliminating by any data of attacking VME operating system.
Virtual machine switched system 100 provided by the invention and changing method arrange by foundation image the virtual machine foundation image that module 120 arranges respective virtual machine, when Virtual Machine Worker occurs extremely as suffered virus attack, the virtual machine image information of virtual machine generation module 160 corresponding to virtual machine information and abnormal virtual machine generates corresponding new virtual machine, the encryption that the new virtual machine generated reinforces module 130 by mirror image becomes safe and reliable virtual machine, automatic switching module 180 is at newly-generated virtual machine and occur automatically switching between abnormal virtual machine, replace occurring that abnormal virtual machine normally works with the new virtual machine generated, safeguard without the need to manual intervention, easy to operate, simultaneously because all sessions (session) status information of http server in the Mirror Info of abnormal virtual machine is in the database of the system of being stored in, reclaimed by all resources of virtual machine of attacking and data by resource reclaim module 190 and remove and HTTP service status information still can continue to retain, new virtual machine substitutes and is continued externally to provide service by the virtual machine attacked, System recover is arrived and is attacked state in the past, realize virus, the immunity of the network attacks such as wooden horse, thus ensure that in virtual machine appearance abnormal as suffered virus, the service provided during Trojan attack uninterruptedly proceeds.
Be understandable that, for the person of ordinary skill of the art, other various corresponding change and distortion can be made by technical conceive according to the present invention, and all these change the protection domain that all should belong to the claims in the present invention with distortion.
Claims (10)
1. a virtual machine switched system, it is for carrying out virtual machine switching when virtual machine occurs abnormal, and described virtual machine switched system comprises:
A foundation image arranges module, and it is for arranging at least one virtual machine foundation image according at least one virtual machine correspondence and storing;
A virtual machine generation module, it generates corresponding new virtual machine for the virtual machine image information when Virtual Machine Worker occurs abnormal corresponding to virtual machine information and virtual machine and starts; And
An automatic switching module, it switches to make new virtual machine replace abnormal virtual machine normally to work for carrying out after described new virtual machine activation and between corresponding abnormal virtual machine.
2. virtual machine switched system as claimed in claim 1, it is characterized in that, described virtual machine switched system also comprises a mirror image and reinforces module, and described mirror image is reinforced module and reinforced for arranging at least one virtual machine foundation image described in module installation to described foundation image.
3. virtual machine switched system as claimed in claim 1, it is characterized in that, described virtual machine switched system comprises a virtual machine activation module, described virtual machine activation module be used for needing to install and select after configuration HTTP service routine corresponding virtual machine template according to user and to configuration file corresponding to selected virtual machine template to start corresponding virtual machine.
4. virtual machine switched system as claimed in claim 3, it is characterized in that, described abnormal virtual machine information comprises all sessions (session) status information of the HTTP service routine installed in configuration file corresponding to virtual machine module information corresponding to described abnormal virtual machine, described abnormal virtual machine and described abnormal virtual machine.
5. virtual machine switched system as claimed in claim 1, it is characterized in that, described virtual machine switched system also comprises a resource reclaim module, and described resource reclaim module reclaims memory source and hard drive space that described abnormal virtual machine takies and removes hard disc data when abnormal virtual machine is closed.
6. a virtual machine changing method, it is for carrying out virtual machine switching when virtual machine occurs abnormal, and described virtual machine changing method comprises the following steps:
At least one virtual machine foundation image is set according at least one virtual machine correspondence and stores;
Virtual machine image information when Virtual Machine Worker occurs abnormal corresponding to virtual machine information and abnormal virtual machine generates corresponding new virtual machine and starts;
Carry out switching to make new virtual machine replace abnormal virtual machine normally to work after described new virtual machine activation and between corresponding abnormal virtual machine.
7. virtual machine changing method as claimed in claim 6, is characterized in that, arranging virtual machine foundation image step and generating between new virtual machine step further comprising the steps of: at least one the virtual machine foundation image set by reinforcing.
8. virtual machine switched system as claimed in claim 6, is characterized in that, comprise the following steps after the step arranging virtual machine foundation image:
Install as required and configure Http service routine;
Corresponding virtual machine template and the configuration file corresponding to selected virtual machine template is selected to start corresponding virtual machine.
9. virtual machine switched system as claimed in claim 8, it is characterized in that, described abnormal virtual machine information comprises all sessions (session) status information of the HTTP service routine installed in configuration file corresponding to virtual machine module information corresponding to described abnormal virtual machine, described abnormal virtual machine and described abnormal virtual machine.
10. virtual machine switched system as claimed in claim 6, is characterized in that, further comprising the steps of after virtual machine automatic switchover step, reclaims memory source and hard drive space that described abnormal virtual machine takies and remove hard disc data when abnormal virtual machine is closed.
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