WO2022141922A1

WO2022141922A1 - Method and apparatus for implementing batch iso creation of cephx authentication virtual machines

Info

Publication number: WO2022141922A1
Application number: PCT/CN2021/085465
Authority: WO
Inventors: 邓玉芳; 季统凯; 贺忠堂
Original assignee: 国云科技股份有限公司
Priority date: 2020-12-30
Filing date: 2021-04-02
Publication date: 2022-07-07
Also published as: CN112631732A; CN112631732B

Abstract

Disclosed in embodiments of the present application are a method and apparatus for implementing batch ISO creation of CephX authentication virtual machines. The method comprises: pre-setting a uniquely constrained image cache record table and an image cache mapping record table, performing image caching and storing records by means of the image cache record table, initiating an image distribution request, and performing image distribution caching according to a pre-set image distribution rule; and performing image cache mapping and storing records by means of the image cache mapping record table, initiating an image cache mapping request, and performing image cache mapping according to a pre-set image cache mapping rule. The embodiments of the present application solve the problem of not supporting hot plugging of an optical disc when using CephX authentication, and also implement concurrent execution on the same ISO and node, so as to achieve the effect of batch execution.

Description

Implementation method and device for batch ISO creation of CephX certified virtual machine

technical field

The embodiments of the present application relate to the technical field of virtual machine management, and in particular, to a method and apparatus for implementing a batch ISO to create a CephX certified virtual machine.

Background technique

RBD block storage is the most widely used and stable storage type among the 3 storage types provided by Ceph. RBD blocks are similar to disks and can be mounted into physical or virtual machines. Ceph provides two authentication methods: None and CephX; None means that the client can access the Ceph storage cluster without key access, which is obviously not recommended; CephX is essentially a symmetric encryption protocol, The encryption algorithm is AES, which is used to identify the user's identity and authenticate the user's operations on the client to prevent network security issues such as man-in-the-middle attacks and data tampering.

In order to support batch creation, many cloud platforms provide image distribution functions to distribute image caches to nodes in advance; however, RBDiso with CephX certification currently does not support hot swapping, that is, online mounting and unloading of CD-ROMs with CephX certification is not possible. ; In order to create virtual machines in batches, most platforms provide image distribution functions. Before batch creation, image distribution is performed first, which undoubtedly increases the inconvenience of cloud platform operations.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a method and device for creating a CephX certified virtual machine in batches, so as to solve the problem that in the prior art, when using CephX certification, hot-plugging of optical discs is not supported and the virtual machine cannot be created in batches without image cache. machine problem.

In a first aspect, an embodiment of the present application provides a method for implementing a batch ISO to create a CephX certified virtual machine, including:

an image cache record table and an image cache mapping record table with preset unique constraints, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used to record the image cache mapping in the target node;

Determine whether the target node already has an image cache by using the image cache record table;

Save the record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component;

After receiving the image distribution request, the image node component performs image distribution and caching according to a preset image distribution rule;

Determine whether the target node already has an image cache mapping by using the image cache mapping record table;

According to the judgment result of the image cache mapping, save the record and initiate the image cache mapping request to the computing node component;

After receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule.

Further, saving records according to the judgment result of the image cache and initiating an image distribution request to the mirror node component, including:

If there is an image cache and the distribution state is active, save the image cache record in the image cache record table;

If saving the image cache record is successful, set the mark of the distribution operation as the first mark, and initiate an image distribution request to the mirror node component;

If saving the image cache record fails, set the mark of the distribution operation as the second mark, and initiate an image distribution request to the mirror node component;

If there is no image cache, the image cache record table is used to determine whether the target node already has an image cache.

Further, after receiving the image distribution request, the image node component performs image distribution and cache according to preset image distribution rules, including:

After receiving the image distribution request, the mirror node component determines the mark of the distribution operation, and if the mark of the distribution operation is the first mark, performs image distribution and cache;

If the mark of the distribution operation is the second mark, the loop detection is carried out, and the synchronization message of the distribution state is called by the control node, and until the distribution state is the active state, it is fed back to the control node that the image cache distribution is successful;

When the cycle detection time exceeds the preset threshold value, the image cache distribution failure state is fed back to the control node, and the rollback state is entered.

Further, saving a record according to the judgment result of the image cache mapping and initiating an image cache mapping request to the computing node component, including:

If there is an image cache mapping and the mapping state is active, save the image cache mapping record in the image cache mapping record table;

If saving the image cache mapping record is successful, set the tag of the mapping operation as the third tag, and initiate an image cache mapping request to the computing node component;

If saving the image cache mapping record fails, set the tag of the mapping operation to the fourth tag, and initiate an image cache mapping request to the computing node component;

If there is no image cache mapping, the image cache mapping record table is used to determine whether the target node already has an image cache mapping.

Further, after receiving the image cache mapping request, the computing node component performs image cache mapping according to preset image cache mapping rules, including:

After receiving the image cache mapping request, the computing node component determines the mark of the mapping operation, and if the mark of the mapping operation is the third mark, performs the image cache mapping;

If the mark of the mapping operation is the fourth mark, perform loop detection, call the mapping state through the control node, and feed back to the control node image cache that the mapping is successful until the mapping state is active;

When the cycle detection time exceeds the preset threshold value, the image cache mapping failure state is fed back to the control node, and the rollback state is entered.

Further, the image cache record table includes six fields: first ID, first image ID, storage target, storage type, distribution status and resource type; the first ID is a unique constraint field, and the first ID is defined by The first image ID, the storage target, the storage type, and the value of the four fields of the resource type are combined;

The image cache mapping record table includes six fields: the second ID, the second image ID, the node name, the storage pool name, the mapping path and the mapping state; the second ID is a unique constraint field, and the second ID is determined by the image. It is composed of the values of the three fields of ID, node name, and storage pool name.

Further, the performing image cache mapping includes:

The RBD block device is mapped to the virtual machine operating system through the map command of the RBD block.

Further, after receiving the image cache mapping request, the computing node component performs image cache mapping according to preset image cache mapping rules, and further includes:

Modify the virtual machine's configuration file by mapping the ISO cached device path.

In a second aspect, an embodiment of the present application provides an implementation device for batch ISO creation of CephX certified virtual machines, including:

A record table preset module is used to preset a uniquely constrained image cache record table and an image cache mapping record table, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used to record Image cache mapping in the target node;

an image cache judging module, configured to judge whether the target node already has an image cache through the image cache record table;

The distribution request sending module is used to save the record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component;

a distribution cache execution module, configured to perform image distribution and cache according to preset image distribution rules after the image node component receives the image distribution request;

an image cache mapping judging module, used for judging whether the target node already has an image cache mapping through the image cache mapping record table;

The mapping request sending module is used to save the record according to the judgment result of the image cache mapping and initiate the image cache mapping request to the computing node component;

The image cache mapping execution module is configured to perform image cache mapping according to preset image cache mapping rules after the computing node component receives the image cache mapping request.

Further, the distribution request sending module includes: a cache record keeping unit, a first marker setting module, a second marker setting module, and an image cache node judgment unit;

The cache record keeping unit is configured to save the image cache record in the image cache record table if there is an image cache and the distribution state is active; the first mark setting module is configured to realize that if the image cache record is saved successfully, Then, the mark of the distribution operation is set as the first mark, and an image distribution request is initiated to the mirror node component; the second mark setting module is used to realize that if saving the image cache record fails, the mark of the distribution operation is set as the second mark, and Initiating an image distribution request to the image node component; the image cache node judgment unit is configured to determine whether the target node already has an image cache through the image cache record table if there is no image cache.

Further, the distribution cache execution module includes: a distribution cache execution unit, a distribution loop detection unit, and a distribution rollback state unit;

The distribution cache execution unit is used to realize that after the mirror node component receives the image distribution request, determine the mark of the distribution operation, and if the mark of the distribution operation is the first mark, perform image distribution and cache; the distribution loop detection unit uses In order to realize that if the mark of the distribution operation is the second mark, loop detection is performed, and the synchronization message of the distribution state is called by the control node, and until the distribution state is the active state, it is fed back to the control node that the image cache is successfully distributed; the distribution rollback state unit It is used to realize that when the loop detection time exceeds the preset threshold value, the image cache distribution failure status is fed back to the control node, and the rollback status is entered.

Further, the mapping request sending module includes: a mapping cache record keeping unit, a third marker setting module, a fourth marker setting module, and a cache mapping node judgment unit;

The mapping cache record saving unit is used to realize that if there is an image cache mapping and the mapping state is an active state, the image cache mapping record is saved in the image cache mapping record table; the third mark setting module is used to realize that if the image is saved If the cache mapping record is successful, the tag of the mapping operation is set as the third tag, and an image cache mapping request is initiated to the computing node component; the fourth tag setting module is used to realize that if saving the image cache mapping record fails, set the mapping operation. The mark is the fourth mark, and an image cache mapping request is initiated to the computing node component; the cache mapping node judgment unit is used to realize that if there is no image cache mapping, re-judging whether the target node already exists through the image cache mapping record table Image cache mapping.

Further, the image cache mapping execution module includes: a cache mapping execution unit, a mapping loop detection unit, and a mapping rollback state unit;

The cache mapping execution unit is used for the computing node component to determine the mark of the mapping operation after receiving the image cache mapping request, and to perform the image cache mapping if the mark of the mapping operation is the third mark;

The mapping loop detection unit is configured to perform loop detection if the mark of the mapping operation is the fourth mark, call the mapping state through the control node, and feed back to the control node that the mapping of the image cache is successful when the mapping state is an active state;

The mapping rollback state unit is configured to feed back the mapping failure status of the image cache to the control node and enter the rollback state when the loop detection time exceeds the preset threshold value.

Further, the image cache mapping execution module is further configured to map the RBD block device to the virtual machine operating system through the RBD block map command.

Further, it also includes: a virtual machine optical disk configuration module, the virtual machine optical disk configuration module is used to modify the configuration file of the virtual machine by mapping the device path of the ISO cache.

In a third aspect, embodiments of the present application provide a storage medium containing computer-executable instructions, when executed by a computer processor, the computer-executable instructions are used to perform the batch ISO creation CephX certification as described in the first aspect Implementation of the virtual machine.

In the embodiment of the present application, the image cache record table and the image cache mapping record table with the preset unique constraints are used to perform image cache and save the records through the image cache record table, to initiate an image distribution request, and to perform image distribution and cache according to the preset image distribution rules. ; Perform image cache mapping and save records through the image cache mapping record table, initiate an image cache mapping request, and perform image cache mapping according to the preset image cache mapping rules to solve the problem of not supporting CD hot swap when using CephX authentication, and at the same time It can be executed concurrently on the same ISO and node to achieve the effect of batch execution.

Description of drawings

1 is a flowchart of a method for implementing a batch ISO to create a CephX authentication virtual machine provided by an embodiment of the present application;

2 is a flowchart of another method for implementing a batch ISO to create a CephX certified virtual machine provided by an embodiment of the present application;

3 is a flowchart of another method for implementing a batch ISO to create a CephX certified virtual machine provided by an embodiment of the present application;

4 is a flowchart of another method for implementing a batch ISO to create a CephX certified virtual machine provided by an embodiment of the present application;

5 is a flowchart of another method for implementing a batch ISO to create a CephX certified virtual machine provided by an embodiment of the present application;

FIG. 6 is a flowchart of an implementation device for batch ISO creation of CephX certified virtual machines provided by an embodiment of the present application.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present application clearer, the specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the convenience of description, the drawings only show some but not all of the contents related to the present application. Before discussing the exemplary embodiments in greater detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts various operations (or steps) as a sequential process, many of the operations may be performed in parallel, concurrently, or concurrently. Additionally, the order of operations can be rearranged. The process may be terminated when its operation is complete, but may also have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, subroutines, and the like.

The method for implementing batch ISO creation of CephX certified virtual machines provided by this application uses the image cache record table and the image cache mapping record table with preset unique constraints, performs image cache and saves records through the image cache record table, initiates an image distribution request, according to Preset image distribution rules, perform image distribution caching; perform image cache mapping and save records through the image cache mapping record table, initiate image cache mapping requests, and perform image cache mapping according to preset image cache mapping rules to solve the problem of using CephX certification At the same time, the same ISO and nodes can be executed concurrently to achieve the effect of batch execution.

RBD block storage is the most widely used and stable storage type among the 3 storage types provided by Ceph. RBD blocks are similar to disks and can be mounted into physical or virtual machines. Ceph provides two authentication methods: None and CephX; None means that the client can access the Ceph storage cluster without key access, which is obviously not recommended; CephX is essentially a symmetric encryption protocol, The encryption algorithm is AES, which is used to identify the user's identity and authenticate the user's operations on the client to prevent network security issues such as man-in-the-middle attacks and data tampering. To support batch creation, many cloud platforms provide image distribution functions to distribute image caches to nodes in advance. However, RBDiso with CephX certification currently does not support hot swapping, that is, online mounting and unloading of discs with CephX certification cannot be performed; in order to create virtual machines in batches of iso, most platforms provide image distribution functions. Before batch creation, Image distribution is performed first, which undoubtedly increases the inconvenience of cloud platform operations.

Specifically, there are many steps in creating a virtual machine task flow template, such as creating virtual machine initialization steps, detecting virtual machine creation node environment steps, creating system disk steps, mounting system disk steps, creating and mounting data disk task flow steps, Create the task flow steps for attaching the network card, the steps for starting the virtual machine, the steps for changing the password of the virtual machine, and the steps for renaming the virtual machine.

In this embodiment of the present application, a task flow step of mounting ISO is added after the step of creating a task flow for mounting a network card, so as to avoid the existing inability to support hot-plugging of optical discs when using CephX authentication and the inability to create virtual ISOs in batches without an image cache. machine problem.

The task flow step of mounting ISO is a nested subtask flow, and the task flow includes the initialization step of mounting ISO, the step of detecting and distributing the image cache, the step of detecting and mapping the ISO cache, the step of modifying the configuration of the virtual machine disc, and the step of mounting Disc completion steps.

Exemplarily, the ISO mounting initialization step: generally, some operations before mounting the ISO are performed, such as changing the task status of the virtual machine to a CD-ROM being mounted, etc., so as to prevent others from performing other operations on the virtual machine.

Specifically, a step of detecting and distributing image cache is added to the mounting ISO task flow template. This step can be executed concurrently on the same ISO and node to achieve the effect of batch execution; In the step of detecting and mapping the ISO cache, the RBD block device is mapped to the operating system through the map command of the RBD block to solve the problem of not supporting hot-plugging of optical discs when using CephX authentication. At the same time, the same ISO and node can be executed concurrently. achieve the effect of batch execution.

1 is a flow chart of a method for implementing a batch ISO to create a CephX certified virtual machine provided by an embodiment of the present application. Referring to Figure 1, the implementation method of the batch ISO to create a CephX certified virtual machine specifically includes:

Step 110: Preset a uniquely constrained image cache record table and an image cache mapping record table, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used to record the image in the target node cache map.

Specifically, a uniquely constrained image cache record table is set, and the image cache record table includes six fields: first ID, first image ID, storage target, storage type, distribution status, and resource type; the first ID is A unique constraint field, where the first ID is formed by combining the values of the first image ID, the storage target, the storage type, and the resource type.

Exemplarily, the storage target refers to the target location of the cache storage, which is optional and generally the name of the storage pool; the storage type includes node, vg, and RBD; the distribution status includes downloading, deleting, and active; and the resource type includes ISO and image.

Specifically, a uniquely constrained image cache mapping record table is set, and the image cache mapping record table includes six fields: a second ID, a second image ID, a node name, a storage pool name, a mapping path, and a mapping state; The second ID is a unique constraint field, and the second ID is formed by combining the values of three fields: image ID, node name, and storage pool name.

Exemplarily, the mapping state includes mapping and active; the resource type includes ISO and image.

Step 120: Determine whether the target node already has an image cache by using the image cache record table.

It can be understood that the system first determines whether an image cache already exists on the target node through the image cache record table, and performs the next steps according to whether there is an image cache.

Step 130: Save a record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component.

Referring to FIG. 2 , step 130 can be specifically implemented through steps 1301-1304.

Step 1301: If there is an image cache and the distribution state is an active state, save the image cache record in the image cache record table.

Specifically, if it is determined from the image cache record table that there is an image cache on the target node, the distribution state at this time is determined, and if the distribution state at this time is active (active), try to save the image cache in the image cache record table. Record.

Step 1302: If saving the image cache record is successful, set the flag of the distribution operation as the first flag, and initiate an image distribution request to the mirror node component.

Specifically, if the image cache record is successfully saved in the image cache record table, because the first ID is composed of the values of the four fields of the first image ID, storage target, storage type and resource type, and it is uniquely constrained, if the image is saved The cache record is successful, indicating that the image is not cached on the target node, and there are no other tasks that are distributing the image to the target node. At this time, a mark is set for the distribution operation, which is recorded as the first mark, optional, the first mark. A tag is marked as distribute, and an image distribution request is issued to the mirror node component; it can be understood that the mirror node component is used to implement the image distribution cache.

Step 1303: If saving the image cache record fails, set the flag of the distribution operation as the second flag, and initiate an image distribution request to the mirror node component.

If saving the image cache record in the image cache record table fails, it indicates that other operations are distributing the image to the target node. At this time, a flag is set for the distribution operation, which is recorded as the second flag. Optionally, the second flag is marked as check , and initiate an image distribution request to the mirror node component.

Step 1304: If there is no image cache, re-determine whether the target node already has an image cache through the image cache record table.

Wherein, if it is determined through the image cache record table that there is no image cache on the target node, then it is re-determined through the image cache record table whether the target node already has an image cache.

Exemplarily, when virtual machines are created in batches, the process steps of the first virtual machine will distribute the image, and the other virtual machines will always check the status of the image, check whether the image has been distributed, and go to the next step when the completion is detected; That is, the creation of virtual machines is created in parallel.

Step 140: After receiving the image distribution request, the image node component performs image distribution and caching according to a preset image distribution rule.

Referring to FIG. 3 , step 140 can be specifically implemented through steps 1401-1403.

Step 1401: After receiving the image distribution request, the mirror node component determines the mark of the distribution operation, and if the mark of the distribution operation is the first mark, performs image distribution and cache.

Specifically, after receiving the image distribution request, the mirror node component determines the mark of the distribution operation. If the mark of the distribution operation is the first mark, then when it is distribute, the normal image distribution operation is performed; optionally, the image distribution operation is: The local storage image is distributed to the specified node; the distributed storage is distributed to the distributed storage; the centralized storage is distributed to the vg of the centralized storage (the same as the vg where the virtual machine is located).

Step 1402: If the mark of the distribution operation is the second mark, perform loop detection, call the synchronization message of the distribution status through the control node, and feed back to the control node that the image cache distribution is successful until the distribution status is active.

Optionally, if the flag of the distribution operation is the second flag, then when it is check, the loop detection is performed, and the synchronization message to obtain the distribution status of the image cache is called to the control node until the distribution state of the image cache is active (active) state. Feedback to the control node image cache distribution is successful, let the process of mounting the ISO continue to the next step.

Step 1403: When the loop detection time exceeds the preset threshold value, the image cache distribution failure state is fed back to the control node, and the rollback state is entered.

It is understandable that if the loop detection times out, that is, when the loop detection time exceeds the preset threshold, it means that the image cache has failed to be distributed successfully, and the image cache distribution failure status message will be fed back to the control node, and the process of mounting the ISO will be rolled back. state, that is, performing the rollback operation of the previous steps; it can be understood that the specific value of the preset threshold value for loop detection can be set according to requirements, and the specific value is not limited in this embodiment of the present application.

Step 150: Determine whether the target node already has an image cache mapping by using the image cache mapping record table.

It can be understood that the system first determines whether an image cache mapping already exists on the target node through the image cache mapping record table, and performs the next steps according to whether there is an image cache mapping.

Step 160: Save the image cache mapping record according to the judgment result of the image cache mapping and initiate an image cache mapping request to the computing node component.

Referring to FIG. 4 , step 160 may be specifically implemented through steps 1601-1604.

Step 1601: If there is an image cache mapping and the mapping state is active, save the image cache mapping record in the image cache mapping record table.

Specifically, if it is judged that there is an image cache mapping on the target node through the image cache mapping record table, the mapping state at this time is judged, and if the mapping state at this time is active (active), try to save it in the image cache mapping table Image cache mapping record.

Step 1602, if saving the image cache mapping record is successful, set the tag of the mapping operation as the third tag, and initiate an image cache mapping request to the computing node component;

Specifically, if the image cache mapping record is successfully saved in the image cache mapping record table, because the second ID is composed of the values of the second image ID, node name and storage pool name, and it is a unique constraint, if the image cache is saved The mapping record is successful, indicating that the image has no cache mapping on the target node, and there are no other tasks that are mapping this image to the target node. At this time, a flag is set for the mapping operation, recorded as the third flag, optional, The third mark is marked as map, and an image cache mapping request is initiated to the computing node component; it can be understood that the computing node component is used to implement the image cache mapping.

Step 1603, if saving the image cache mapping record fails, set the mark of the mapping operation as the fourth mark, and initiate an image cache mapping request to the computing node component;

If it fails to save the image cache mapping record in the image cache mapping record table, it indicates that other operations are distributing the image cache to the target node. At this time, a mark is set for the mapping operation, which is recorded as the fourth mark, optional, the second mark Record it as check, and initiate an image cache mapping request to the compute node component.

Step 1604: If there is no image cache mapping, re-determine whether the target node already has an image cache mapping through the image cache mapping record table.

Wherein, if it is determined through the image cache mapping record table that there is no image cache mapping on the target node, then it is judged again whether the image cache mapping already exists on the target node through the image cache mapping record table.

Step 170: After receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule.

Referring to FIG. 5 , step 170 can be specifically implemented through steps 1701-1703.

Step 1701: After receiving the image cache mapping request, the computing node component determines the mark of the mapping operation, and if the mark of the mapping operation is the third mark, performs the image cache mapping;

Specifically, after receiving the image cache mapping request, the computing node component determines the mark of the mapping operation. If the mark of the mapping operation is the third mark, then when it is a map, the normal image cache mapping operation is performed; optionally, the image cache mapping operation is performed. The operation is: map the RBD block device to the virtual machine operating system through the map command of the RBD block.

Step 1702: If the mark of the mapping operation is the fourth mark, perform loop detection, call the mapping state through the control node, and feed back to the control node that the mapping of the image cache is successful when the mapping state is active;

Optionally, if the mark of the mapping operation is the fourth mark, then when it is check, loop detection is performed, and the synchronization message to obtain the mapping status of the image cache is called to the control node until the mapping status of the image cache is active. Feedback to the control node that the image cache mapping is successful, let the ISO mount process continue to the next step.

Step 1703: When the loop detection time exceeds the preset threshold value, the image cache mapping failure state is fed back to the control node, and the rollback state is entered.

It can be understood that if the loop detection times out, that is, when the loop detection time exceeds the preset threshold value, it means that the image cache has not been successfully mapped, and the image cache mapping failure status message will be fed back to the control node, and the process of mounting the ISO will be rolled back. Status, that is, to perform the rollback operation of the previous steps.

On the basis of the above embodiment, the method for implementing the batch ISO creation of CephX certified virtual machines can also be embodied as follows: after the computing node component receives the image cache mapping request, it performs image cache mapping according to the preset image cache mapping rules After that, also include:

Exemplarily, the relevant mounting configuration is written into the configuration file of the virtual machine, and the optical disc is still mounted on the virtual machine after the virtual machine is restarted once.

The above steps are not strictly performed in the order described by the numbers, and should be understood as a whole solution.

On the basis of the foregoing embodiment, FIG. 6 is a schematic structural diagram of a device for implementing a batch ISO to create a CephX authentication virtual machine according to an embodiment of the present application. 6 , the image processing apparatus provided in this embodiment specifically includes: a record table preset module 301, an image cache judgment module 302, a distribution request sending module 303, a distribution cache execution module 304, an image cache mapping judgment module 305, and a mapping request sending module Module 306 and image cache mapping execution module 307.

The record table preset module 301 is used to preset a uniquely constrained image cache record table and an image cache mapping record table, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used for To record the image cache mapping in the target node; the image cache judgment module 302 is used to judge whether the target node already has an image cache through the image cache record table; the distribution request sending module 303 is used to save the record according to the judgment result of the image cache and send it to the image cache. The mirror node component initiates an image distribution request; the distribution cache execution module 304 is used for the mirror node component to perform image distribution and cache according to a preset image distribution rule after receiving the image distribution request; the image cache mapping judgment module 305 is used to pass the The image cache mapping record table judges whether the target node already has an image cache mapping; the mapping request sending module 306 is used to save records according to the judgment result of the image cache mapping and initiate an image cache mapping request to the computing node component; the image cache mapping execution module 307 uses After the computing node component receives the image cache mapping request, it performs image cache mapping according to a preset image cache mapping rule.

Further, the distribution request sending module 303 includes: a cache record keeping unit, a first marker setting module, a second marker setting module, and an image cache node judgment unit;

Further, the distribution cache execution module 304 includes: a distribution cache execution unit, a distribution loop detection unit, and a distribution rollback status unit;

Further, the mapping request sending module 306 includes: a mapping cache record saving unit, a third marker setting module, a fourth marker setting module, and a cache mapping node judgment unit;

The mapping cache record saving unit is used to realize that if there is an image cache mapping and the mapping state is an active state, the image cache mapping record is saved in the image cache mapping record table; the third mark setting module is used to realize that if the image is saved If the cache mapping record is successful, the tag of the mapping operation is set as the third tag, and an image cache mapping request is initiated to the computing node component; the fourth tag setting module is used to realize that if saving the image cache mapping record fails, set the mapping operation. The mark is the fourth mark, and an image cache mapping request is initiated to the computing node component; the cache mapping node judging unit is used to realize that if there is no image cache mapping, re-judging whether the target node already exists through the image cache mapping record table Image cache mapping.

Further, the image cache mapping execution module 307 includes: a cache mapping execution unit, a mapping loop detection unit, and a mapping rollback status unit;

Further, the image cache mapping execution module 307 is further configured to map the RBD block device to the virtual machine operating system through the map command of the RBD block.

The implementation device for creating a CephX authentication virtual machine in batches provided by the embodiments of the present application can be used to execute the implementation method for creating a CephX authentication virtual machine in batches provided by the above embodiments, and has corresponding functions and beneficial effects.

In the above, the image cache record table and the image cache mapping record table with the preset unique constraints are used to perform image cache and save records through the image cache record table, and an image distribution request is initiated, and the image distribution cache is performed according to the preset image distribution rules; The image cache mapping record table performs image cache mapping and saves records, initiates an image cache mapping request, and performs image cache mapping according to the preset image cache mapping rules. An ISO and a node can be executed concurrently to achieve the effect of batch execution.

Embodiments of the present application further provide a storage medium containing computer-executable instructions, when the computer-executable instructions are executed by a computer processor, the computer-executable instructions are used to execute a method for implementing a batch ISO to create a CephX certified virtual machine. The implementation method of the CephX certified virtual machine includes: a preset unique constraint image cache record table and an image cache mapping record table, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used for Record the image cache mapping in the target node; judge whether the target node already has an image cache through the image cache record table; save the record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component; the mirror node component receives After the image distribution request, perform image distribution and cache according to the preset image distribution rules; determine whether the target node already has an image cache mapping by using the image cache mapping record table; save a record according to the judgment result of the image cache mapping and send it to the computing node component. An image cache mapping request is initiated; after receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule.

storage medium - any of various types of memory devices or storage devices. The term "storage medium" is intended to include: installation media, such as CD-ROMs, floppy disks, or tape devices; computer system memory or random access memory, such as DRAM, DDRRAM, SRAM, EDORAM, Rambus RAM, etc.; non-volatile Volatile memory, such as flash memory, magnetic media (eg hard disk or optical storage); registers or other similar types of memory elements, etc. The storage medium may also include other types of memory or combinations thereof. In addition, the storage medium may be located in the first computer system in which the program is executed, or may be located in a second, different computer system connected to the first computer system through a network such as the Internet. The second computer system may provide program instructions to the first computer for execution. The term "storage medium" may include two or more storage media that may reside in different locations (eg, in different computer systems connected by a network). The storage medium may store program instructions (eg, embodied as a computer program) executable by one or more processors.

Of course, a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the above-mentioned method for implementing batch ISO creation of a CephX certified virtual machine, and can also execute any embodiment of the present application. Relevant operations in the implementation method of the provided batch ISO to create a CephX certified virtual machine.

The implementation device, storage medium, and computer equipment for creating a CephX certified virtual machine in batches provided in the above-mentioned embodiments can execute the implementation method for creating a CephX-certified virtual machine in batches provided by any embodiment of the present application, which is not described in detail in the above-mentioned embodiments. For the technical details of the description, reference may be made to the implementation method for batch ISO creation of a CephX certified virtual machine provided by any embodiment of this application.

The above are only the preferred embodiments of the present application and the applied technical principles. The present application is not limited to the specific embodiments described herein, and various obvious changes, readjustments and substitutions that can be made by those skilled in the art will not depart from the protection scope of the present application. Therefore, although the present application has been described in detail through the above embodiments, the present application is not limited to the above embodiments, and can also include more other equivalent embodiments without departing from the concept of the present application. The scope is determined by the scope of the claims.

Claims

A method for implementing a batch ISO to create a CephX certified virtual machine, characterized in that the method comprises the following steps:

an image cache record table and an image cache mapping record table with preset unique constraints, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used to record the image cache mapping in the target node;

Determine whether the target node already has an image cache by using the image cache record table;

Save the record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component;

After receiving the image distribution request, the image node component performs image distribution and caching according to a preset image distribution rule;

Determine whether the target node already has an image cache mapping by using the image cache mapping record table;

According to the judgment result of the image cache mapping, save the record and initiate the image cache mapping request to the computing node component;

After receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule.
The method for creating a CephX certified virtual machine by batch ISO according to claim 1, wherein the storing a record according to the judgment result of the image cache and initiating an image distribution request to the mirror node component comprises:

If there is an image cache and the distribution state is active, save the image cache record in the image cache record table;

If saving the image cache record is successful, set the mark of the distribution operation as the first mark, and initiate an image distribution request to the mirror node component;

If saving the image cache record fails, set the mark of the distribution operation as the second mark, and initiate an image distribution request to the mirror node component;

If there is no image cache, the image cache record table is used to determine whether the target node already has an image cache.
The method for implementing a CephX certified virtual machine by batch ISO according to claim 2, wherein after receiving the image distribution request, the image node component performs image distribution and cache according to a preset image distribution rule, including:

After receiving the image distribution request, the mirror node component determines the mark of the distribution operation, and if the mark of the distribution operation is the first mark, performs image distribution and cache;

If the mark of the distribution operation is the second mark, then loop detection is carried out, and the synchronization message of the distribution state is called by the control node, until the distribution state is the active state, then feedback to the control node image cache distribution is successful;

When the cycle detection time exceeds the preset threshold value, the image cache distribution failure state is fed back to the control node, and the rollback state is entered.
The method for creating a CephX certified virtual machine by batch ISO according to claim 1, wherein the storing a record according to the judgment result of the image cache mapping and initiating an image cache mapping request to the computing node component, comprising:

If there is an image cache mapping and the mapping state is active, save the image cache mapping record in the image cache mapping record table;

If saving the image cache mapping record is successful, set the tag of the mapping operation as the third tag, and initiate an image cache mapping request to the computing node component;

If saving the image cache mapping record fails, set the tag of the mapping operation to the fourth tag, and initiate an image cache mapping request to the computing node component;

If there is no image cache mapping, the image cache mapping record table is used to determine whether the target node already has an image cache mapping.
The method for implementing a batch ISO to create a CephX certified virtual machine according to claim 4, wherein after receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule, comprising: :

After receiving the image cache mapping request, the computing node component determines the mark of the mapping operation, and if the mark of the mapping operation is the third mark, performs the image cache mapping;

If the mark of the mapping operation is the fourth mark, perform loop detection, call the mapping state through the control node, and feed back to the control node image cache that the mapping is successful until the mapping state is active;

When the cycle detection time exceeds the preset threshold value, the image cache mapping failure state is fed back to the control node, and the rollback state is entered.
The method for implementing batch ISO creation of CephX certified virtual machines according to claim 1, wherein the image cache record table includes a first ID, a first image ID, a storage target, a storage type, a distribution state, and a resource type VI. The first ID is a unique constraint field, and the first ID is formed by combining the values of the first image ID, the storage target, the storage type and the resource type four fields;

The image cache mapping record table includes six fields: the second ID, the second image ID, the node name, the storage pool name, the mapping path and the mapping state; the second ID is a unique constraint field, and the second ID is determined by the image. It is composed of the values of the three fields of ID, node name, and storage pool name.
The method for implementing a batch ISO to create a CephX certified virtual machine according to claim 1, wherein the performing image cache mapping comprises:

The RBD block device is mapped to the virtual machine operating system through the map command of the RBD block.
The method for creating a CephX certified virtual machine by batch ISO according to claim 1, wherein after receiving the image cache mapping request, the computing node component performs image cache mapping according to a preset image cache mapping rule, Also includes:

Modify the virtual machine's configuration file by mapping the ISO cached device path.
A realization device for creating a CephX certified virtual machine in batches by ISO, comprising:

A record table preset module is used to preset a uniquely constrained image cache record table and an image cache mapping record table, the image cache record table is used to record the image cache in the target node, and the image cache mapping record table is used to record Image cache mapping in the target node;

an image cache judging module, configured to judge whether the target node already has an image cache through the image cache record table;

The distribution request sending module is used to save the record according to the judgment result of the image cache and initiate an image distribution request to the mirror node component;

a distribution cache execution module, configured to perform image distribution and cache according to preset image distribution rules after the image node component receives the image distribution request;

an image cache mapping judging module, used for judging whether the target node already has an image cache mapping through the image cache mapping record table;

The mapping request sending module is used to save the record according to the judgment result of the image cache mapping and initiate the image cache mapping request to the computing node component;

The image cache mapping execution module is configured to perform image cache mapping according to preset image cache mapping rules after the computing node component receives the image cache mapping request.
A storage medium comprising computer-executable instructions, wherein the computer-executable instructions, when executed by a computer processor, are used to execute a batch ISO creation CephX authentication virtual machine according to any one of claims 1-8. machine implementation method.