CN105630571A - Virtual machine creating method and device - Google Patents

Abstract

The invention provides a method and device for creating a virtual machine. Wherein, the method includes: creating a first virtual machine according to the business model, wherein the business data corresponding to the business model is separately stored on a predetermined disk mounted on the first virtual machine; converting the first virtual machine into a template virtual machine, and A second virtual machine is generated according to the template virtual machine; business data is copied online from a predetermined disk to a newly created disk, and the newly created disk is mounted on the second virtual machine. Through the present invention, the effect that the service data of the virtual machine can be seamlessly connected is achieved.

Description

A method and device for creating a virtual machine

technical field

The invention relates to the communication field, in particular to a method and device for creating a virtual machine.

Background technique

At present, many virtual machines are created based on underlying virtualization technologies such as XEN and KVM. After creating a virtual machine, it is necessary to install the corresponding operating system, common office software, and business software for the virtual machine, such as deploying Web services, Oracle Database or Sybase database, etc. Since in some commercial systems, many user and business data are dynamic (that is, constantly changing), even after the virtual machine is converted into a virtual machine template, it is still a problem to use this virtual machine template to create a new virtual machine. Copy static data. That is to say, when using the created virtual machine as a virtual machine template to recreate the virtual machine in the prior art, there is a lack of synchronous processing of the continuously updated service data of the live network.

Therefore, in the prior art, when using a template to create a virtual machine, it is impossible to synchronize the constantly updated service data of the live network in real time.

Contents of the invention

The main purpose of the present invention is to provide a method and device for creating a virtual machine, so as to solve the technical problem that the existing technology cannot synchronize the continuously updated service data of the existing network in real time when creating a virtual machine using a template.

In order to achieve the above object, according to one aspect of the present invention, a method for creating a virtual machine is provided, including: creating a first virtual machine according to a business model, wherein the business data corresponding to the business model is separately stored in the first virtual machine mount on the predetermined disk; convert the first virtual machine into a template virtual machine, and generate a second virtual machine based on the template virtual machine; copy the business data from the predetermined disk to the new disk online, and mount the new disk on the second on the virtual machine.

Preferably, creating the first virtual machine according to the business model includes: based on the differential disk management technology of the virtual hard disk format (VHD), using the parent node as the parent image, setting the virtual machine specification according to the business model, and setting the virtual machine specification for the parent node according to the virtual machine specification. Generate a child node as the first virtual machine; install basic data for the first virtual machine, wherein the basic data includes systems, patches, plug-ins, and common software; store business data separately on a predetermined disk, assign an ID to the predetermined disk, And store the ID and basic data in the database or configuration file of the first virtual machine.

Preferably, generating the second virtual machine according to the template virtual machine includes: using the template virtual machine as a template, using the parent node as a parent image, and generating a new child node for the parent node as the second virtual machine.

Preferably, online copying the service data from the predetermined disk to the new disk includes: reading the ID from the database, searching for the location information of the predetermined disk according to the ID; using the location information to copy the business data online from the predetermined disk, And allocate new disks for real-time storage of copied business data.

Preferably, the virtual machine specification includes: central processing unit (CPU) information, memory information and network card information.

Preferably, the types of the predetermined disk and the new disk include: disks under the Windows system or disks under the Linux system; service data include: SMS data, MMS data, or intelligent network service data.

According to one aspect of the present invention, a virtual machine creation device is provided, including: a creation module for creating a first virtual machine according to a business model, wherein the business data corresponding to the business model is separately stored in the first virtual machine mount on the predetermined disk; the first processing module is used to convert the first virtual machine into a template virtual machine, and generate a second virtual machine according to the template virtual machine; the second processing module is used to online copy business data from the predetermined disk to the newly created disk, and mount the newly created disk on the second virtual machine.

Preferably, the creation module includes: a first processing unit, used for differential disk management technology based on the virtual hard disk format (VHD), using the parent node as the parent image, setting the virtual machine specification according to the business model, and according to the virtual machine specification, setting The node generates a child node as the first virtual machine; the installation unit is used to install basic data for the first virtual machine, wherein the basic data includes systems, patches, plug-ins and common software; the second processing unit is used to separate business data storing on a predetermined disk, assigning an ID to the predetermined disk, and storing the ID and basic data in the database or configuration file of the first virtual machine.

Preferably, the first processing module includes: a generation unit, configured to use the template virtual machine as a template, use the parent node as a parent image, and generate a new child node for the parent node as a second virtual machine.

Preferably, the second processing module includes: a third processing unit, configured to read the ID from the database, and search for the location information of the predetermined disk according to the ID; a fourth processing unit, configured to use the location information to search for the service from the predetermined disk The data is copied online, and new disks are allocated to store the copied business data in real time.

Compared with the prior art, the virtual machine creation method and device of the present invention have the following technical effects:

When using a template to create a virtual machine, the business data can be saved separately in the business data disk mounted on the template virtual machine, so that after the new virtual machine is created, the continuously updated business data can be copied to the new virtual machine in real time. In the business data disk mounted on the virtual machine, the data consistency of the created virtual machine at the operating system level can be guaranteed, and the business data of the virtual machine can be seamlessly connected.

Description of drawings

1 is a flowchart of a method for creating a virtual machine according to an embodiment of the present invention;

2 is a schematic diagram of the architecture of a virtual machine and a disk in the case of creating a new virtual machine using a template virtual machine according to a preferred embodiment of the present invention;

Fig. 3 is a flow chart of converting a virtual machine into a virtual machine template according to a preferred embodiment of the present invention;

FIG. 4 is a flowchart of creating a new virtual machine using a virtual machine template according to a preferred embodiment of the present invention;

5 is a structural block diagram of an apparatus for creating a virtual machine according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of an apparatus for creating a virtual machine according to a preferred embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The embodiments of the present invention mainly provide a method and device for creating a virtual machine, so that when a template is used to create a virtual machine, the continuously updated service data of the live network can be synchronized in real time.

Before describing the embodiments of the present invention, first a brief introduction is made to the idea of solving the technical problems of the technical solutions provided by the embodiments of the present invention:

The embodiment of the present invention mainly proposes a virtual machine creation scheme based on online business from three aspects: one is to design the business model of the virtual machine according to the characteristics of the online business, for example, when creating a virtual machine, store the business data that will not change to a separately mounted disk and filesystem. The second is to use VHD's differential disk management technology (a chained disk technology). In this case, the parent node can only access and view the data, and only the last child node can complete the data operation and management. Through Mount the corresponding business data disk on the corresponding virtual machine to process a large amount of business data. The third is to create a business virtual machine based on the template, first share the parent image (that is, the parent node), and then regenerate the child nodes to complete the creation of the virtual machine, and then copy the full amount of business data disks mounted on the virtual machine online, here During the process, the creation of the virtual machine is completed (saving hard disk resources), and at the same time, the frequently changing business data disk can be mounted to the newly created virtual machine, which basically solves the problem of using templates to create virtual machines in the prior art. It can only deal with the problem of static data (that is, it cannot synchronize the continuously updated service data of the live network in real time), and it can synchronize online services in real time. Moreover, the virtual machine creation solution provided by the present invention is particularly suitable for distributed systems based on virtual machines, or disaster recovery systems for some online services.

The embodiment of the present invention provides a method for creating a virtual machine. Fig. 1 is a flow chart of a method for creating a virtual machine according to an embodiment of the present invention. As shown in Fig. 1 , the process includes mainly the following steps (step S102-step S106):

Step S102, creating a first virtual machine according to the business model, wherein business data corresponding to the business model is separately stored on a predetermined disk mounted on the first virtual machine.

Step S104, converting the first virtual machine into a template virtual machine, and generating a second virtual machine according to the template virtual machine.

Step S106, online copying the service data from the predetermined disk to the newly created disk, and mounting the newly created disk on the second virtual machine.

Through the above steps, since the service data is stored separately from other data, in this case, if the live network continuously generates new service data, these updated service data can be copied in real time and saved in a new disk , and mount the new disk to the newly created virtual machine (that is, the above-mentioned second virtual machine).

In a preferred implementation of the embodiment of the present invention, the above step S102 can be implemented in the following manner: First, based on the differential disk management technology of VHD, the parent node can be used as the parent image, and the virtual machine specification can be set according to the business model, and According to the virtual machine specification, generate a child node for the parent node as a virtual machine, then install the basic data for the virtual machine (wherein, the basic data can include systems, patches, plug-ins, and common software), and finally, store the business data separately in the predetermined On the disk, assign an ID to the predetermined disk, and store the ID and basic data in the database or configuration file of the first virtual machine.

Since the service data is stored separately on the predetermined disk, it will not be mixed with other data, so that there will be no mutual interference when performing different operations on the service data and other data.

In a preferred implementation of the embodiment of the present invention, the above step S104 can be implemented in such a way: use the template virtual machine as a template, use the parent node as the parent image, and generate a new child node for the parent node as the second virtual machine.

That is to say, the second virtual machine is created using the first virtual machine as a template, and both the second virtual machine and the first virtual machine are child nodes of the parent node.

In a preferred implementation of the embodiment of the present invention, in the above step S106, the service data is copied online from the predetermined disk to the newly created disk in such a way: first read the ID from the database, and then use the ID to Find the location information of the scheduled disk, then use the location information to copy the business data online from the scheduled disk, and allocate a new disk to store the copied business data in real time.

In this way, the continuously updated business data can be copied from the predetermined disk mounted on the first virtual machine and dedicated to storing business data, and saved to the new disk that can be mounted to the first virtual machine, thus ensuring Seamless connection of live network service data.

In the embodiment of the present invention, the virtual machine specification may include: central processing unit (CPU) information, memory information, and network card information. Of course, it is not limited thereto. In practical applications, the specification of the virtual machine may also include other information, such as storage disk information.

In the embodiment of the present invention, the types of the predetermined disk and the newly created disk may include: disks under the Windows system, or disks under the Linux system, such as D disks and E disks under the Windows system. In addition, the service data may include: SMS data, MMS data, or intelligent network service data. Of course, the service data in practical applications is not limited to this at all, and may include, for example, video and voice data.

Through the above virtual machine creation method provided by the embodiment of the present invention, when creating a virtual machine using a template, the parent image can be shared and the consistency of the source file can be guaranteed (for example, only the relevant software of the image file needs to be updated when upgrading the operation patch) , It can also copy the business data running online in real time, so as to complete the seamless connection of online business.

In order to better understand the above embodiments, the implementation manners of the above embodiments will be described and illustrated in more detail below in conjunction with FIGS. 2 to 4 and preferred embodiments. The implementation process of the following preferred embodiments is mainly as follows:

First, create a virtual machine (that is, the above-mentioned first virtual machine) according to the business model, and install corresponding software on the virtual machine, among which it is more important to put all the corresponding business data on the disk mounted on the virtual machine (Try to ensure that the business data is stored in an independent disk, that is, the above-mentioned predetermined disk), and carry out a special identification of the disk mounted on the virtual machine (that is, the above-mentioned ID identification). Generally, the data related to the virtual machine can be stored In the database or configuration file, therefore, the ID can also be stored in the database or configuration file of the created virtual machine (that is, the above-mentioned first virtual machine). After the creation of the virtual machine is completed, the virtual machine (the first virtual machine) can be converted into a template virtual machine.

Then, using the differential disk management technology of VHD, when using the converted virtual machine template to create a new virtual machine, the parent image can be shared, and a new child node can be generated based on the parent image. So far, the basic template creation has been completed. The process of the virtual machine.

After that, you can copy the relevant business data online to the new mount disk according to the relevant configuration information, and mount the mount disk to the newly created virtual machine, thus completing the copying of the entire business disk .

Finally, starting the newly created virtual machine completes the creation and running process of the entire online service-based virtual machine.

Please refer to FIG. 2. FIG. 2 is a schematic diagram of the architecture of a virtual machine and a disk in the case of using a template virtual machine to create a new virtual machine according to a preferred embodiment of the present invention. The parent node in FIG. The data disk used to create a virtual machine from the template), a child node will be newly generated when the parent node is used to create a virtual machine, and multiple child nodes can be mounted under a parent node, and the child node is the space for the virtual machine to run independently. Among them, Each child node (that is, each virtual machine) can mount its own disk (for example, D drive, E drive, etc. of the Windows system), and its own business (for example, SMS, MMS, etc.). The mounted disk assumes the functions of the business node, including operations on all data. For example, the disk space corresponding to the data of database account opening and deletion operations needs to be performed on the mounted disk.

At the same time, you can identify the corresponding disk through both the database and the configuration file, and then when creating a virtual machine through the template, you can use this identification to copy all the data online.

It can be seen that the biggest advantage of this architecture is that the parent node can provide shared master disk data, and the data cannot be easily modified. This method can not only save data space, but also ensure data consistency at the operating system and other levels. At the same time, when the operating system needs to be upgraded, the template can also be converted into a virtual machine, and then related plug-ins, patches, etc. can be upgraded. After the upgrade, it can be used by all child nodes at the same time.

Fig. 3 is a flow chart of converting a virtual machine into a virtual machine template according to a preferred embodiment of the present invention. As shown in Fig. 3, the process roughly includes the following steps:

Step S302, creating a common virtual machine.

Step S304, installing basic data such as an operating system, patches, and commonly used software for the virtual machine.

Step S306, mount the service disk for the virtual machine and identify the service disk in the database and the configuration file.

Step S308, loading business data into the business disk.

Step S310, converting the virtual machine into a template.

Specifically, the process of converting a virtual machine into a template virtual machine can be implemented as follows:

First, set the virtual machine specifications (for example, 4-core CPU, 4G memory, network card and other related information) according to the business, create a bare virtual machine, and then install the corresponding patch packages, plug-ins, and commonly used tool software. At this point, the processing of the basic data of the virtual machine is completed.

Then, on this basis, mount the relevant virtual machine disk for the created virtual machine, and save the data uniquely identified by the corresponding ID of the disk in the database or configuration file, so as to be used in the data recovery process.

Finally, the corresponding business data can be mounted on the disk mounted on the virtual machine, and the virtual machine can be used as a normal server or client after the business data is started. At the same time, when the virtual machine is installed as a template, in addition to keeping the configuration file and storage information corresponding to the virtual machine, it is also necessary to keep the ID and location information of the corresponding mounted disk of the virtual machine.

Fig. 4 is a flow chart of using a virtual machine template to create a new virtual machine according to a preferred embodiment of the present invention. As shown in Fig. 4, the process roughly includes the following steps:

Step S402, creating a new child node as a new virtual machine on the mirror node of the created virtual machine.

Step S404, reading disk configuration information from the database.

Step S406, copying all the business data in the disk to the new disk by means of snapshot or the like.

Step S408, mount the new disk on the new virtual machine.

Step S410, start a new virtual machine.

Specifically, the process of creating a new virtual machine using a virtual machine template can be implemented as follows:

First, a new child node is pulled from the original virtual machine parent node, and a new virtual machine is generated according to the virtual machine configuration file of the parent node (this process is a process of creating a virtual machine from a normal template).

Then, according to the data such as the ID mounted on the relevant disk in the database, find the disk location where the virtual machine was running online before, and perform online operations such as copying all data based on this.

Finally, after the newly copied disk is completed, mount the disk to the newly created virtual machine, and then complete the process of creating the virtual machine from the entire template.

Corresponding to the method for creating a virtual machine provided in the foregoing embodiments, an embodiment of the present invention further provides an apparatus for creating a virtual machine.

Fig. 5 is a structural block diagram of a virtual machine creation device according to an embodiment of the present invention. As shown in Fig. 5, the virtual machine creation device mainly includes: a creation module 10 for creating a first virtual machine according to a business model, wherein The business data of the business model is separately stored on a predetermined disk mounted on the first virtual machine; the first processing module 20 is configured to convert the first virtual machine into a template virtual machine, and generate a second virtual machine according to the template virtual machine; The second processing module 30 is configured to online copy business data from a predetermined disk to a newly created disk, and mount the newly created disk on the second virtual machine.

On the basis of the device for creating a virtual machine shown in FIG. 5 , a preferred embodiment of the present invention further provides a device for creating a virtual machine.

FIG. 6 is a schematic diagram of a virtual machine creation device according to a preferred embodiment of the present invention. As shown in FIG. 6, in the virtual machine creation device:

The creation module 10 may further include: a first processing unit 12, which is used for differential disk management technology based on the virtual hard disk format (VHD), uses the parent node as the parent image, sets the virtual machine specification according to the business model, and according to the virtual machine specification, for The parent node generates a child node as a virtual machine; the installation unit 14 is used to install basic data for the virtual machine, wherein the basic data includes systems, patches, plug-ins and common software; the second processing unit 16 is used to store business data separately On the predetermined disk, assign an ID to the predetermined disk, and store the ID and basic data in the database of the first virtual machine.

The first processing module 20 may further include: a generation unit 22 configured to use the template virtual machine as a template, use the parent node as a parent image, and generate a new child node for the parent node as a second virtual machine.

The second processing module 30 may further include: a third processing unit 32, configured to read the ID from the database, and search for the location information of the predetermined disk according to the ID; a fourth processing unit 34, configured to use the location information from the predetermined disk. Copy business data online, and allocate new disks for real-time storage of copied business data.

Through the above embodiments or preferred embodiments, the consistency of the basic data of the virtual machine at the system level and other levels can be guaranteed, and at the same time, it can be guaranteed that a single-point upgrade can be performed for the existing network service data when synchronous upgrade is required (without affecting Other data), can be applied to all other online business nodes. Moreover, according to the results of the actual performance test and user feedback, the method for creating a virtual machine provided by the present invention can well meet the user's requirement of using a template virtual machine to create a service virtual machine.

The above description is a preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications should also be It is deemed to be included within the protection scope of the present invention.

Claims (10)

1. a virtual machine creation method, it is characterised in that including:

Creating the first virtual machine according to business model, wherein, the business datum corresponding to described business model is stored separately on the predetermined disk of described first virtual machine carry;

Described first virtual machine is converted to template virtual machine, and generates the second virtual machine according to described template virtual machine;

Described business datum is copied to online in newly-built disk from described predetermined disk, and by described newly-built disk carry on described second virtual machine.

2. method according to claim 1, it is characterised in that create the first virtual machine according to business model and include:

Based on the difference disk management technology of virtual hard disk form VHD, using father node as female mirror image, virtual machine specification is set according to described business model, and according to described virtual machine specification, generates a child node as described first virtual machine for described father node;

For described first virtual machine installation foundation data, wherein, described basic data includes system, patch, plug-in unit and popular software;

Described business datum is stored separately on described predetermined disk, distributes ID mark for described predetermined disk, and described ID mark and described basic data are stored in data base or the configuration file of described first virtual machine.

3. method according to claim 2, it is characterised in that generate the second virtual machine according to described template virtual machine and include:

Using described template virtual machine as template, using described father node as female mirror image, generate a new child node as described second virtual machine for described father node.

4. method according to claim 3, it is characterised in that described business datum is included from copying newly-built disk online to described predetermined disk:

Described ID mark, the positional information of predetermined disk according to described ID identifier lookup is read from described data base;

Use described positional information from described predetermined disk, described business datum to be copied online, and distribute the business datum that described newly-built disk copies for real-time storage.

5. the method according to any one of claim 2 to 4, it is characterised in that described virtual machine specification includes: central processor CPU information, memory information and network interface card information.

6. method according to any one of claim 1 to 4, it is characterised in that

The type of described predetermined disk and described newly-built disk includes: the disk under Windows system or the disk under linux system;

Described business datum includes: note data, multimedia message data or intelligent network service data.

7. a virtual machine creating device, it is characterised in that including:

Creation module, for creating the first virtual machine according to business model, wherein, the business datum corresponding to described business model is stored separately on the predetermined disk of described first virtual machine carry;

First processing module, for described first virtual machine converts to template virtual machine, and generates the second virtual machine according to described template virtual machine;

Second processing module, for copying to described business datum online in newly-built disk from described predetermined disk, and by described newly-built disk carry on described second virtual machine.

8. device according to claim 7, it is characterised in that described creation module includes:

First processing unit, for the difference disk management technology based on virtual hard disk form VHD, using father node as female mirror image, virtual machine specification is set according to described business model, and according to described virtual machine specification, generate a child node as described first virtual machine for described father node;

Installation unit, for for described first virtual machine installation foundation data, wherein, described basic data includes system, patch, plug-in unit and popular software;

Second processing unit, for described business datum is stored separately on described predetermined disk, distributes ID mark for described predetermined disk, and described ID mark and described basic data is stored in data base or the configuration file of described first virtual machine.

9. device according to claim 8, it is characterised in that described first processing module includes:

Generate unit, be used for described template virtual machine as template, using described father node as female mirror image, generate a new child node as described second virtual machine for described father node.

10. device according to claim 9, it is characterised in that described second processing module includes:

3rd processing unit, for reading described ID mark, the positional information of predetermined disk according to described ID identifier lookup from described data base;

Fourth processing unit, is used for using described positional information from described predetermined disk, described business datum to be copied online, and distributes the business datum that described newly-built disk copies for real-time storage.