CN112631732A - Method and device for realizing batch ISO (International organization for standardization) establishment of CephX authentication virtual machines - Google Patents
Method and device for realizing batch ISO (International organization for standardization) establishment of CephX authentication virtual machines Download PDFInfo
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Abstract
The embodiment of the application discloses a method and a device for realizing batch ISO creation of CephX authentication virtual machines; the method comprises the following steps: mapping caching and recording are carried out through a mapping cache record table and a mapping cache mapping record table which are preset with unique constraint, mapping distribution request is initiated, and mapping distribution caching is carried out according to a preset mapping distribution rule; mapping the mapping cache and storing records through the mapping cache mapping record table, initiating a mapping cache mapping request, and mapping the mapping cache according to a preset mapping cache mapping rule; the embodiment of the application solves the problem that the hot plug of the optical disc is not supported when the CephX authentication is used, and simultaneously realizes the concurrent execution on the same ISO and the same node, thereby achieving the effect of batch execution.
Description
Technical Field
The embodiment of the application relates to the technical field of virtual machine management, in particular to a method and a device for achieving batch ISO creation of CephX authentication virtual machines.
Background
The RBD block storage is the most widely used and stable storage type among the 3 storage types provided by Ceph. The RBD block is similar to a disk and can be mounted in a physical machine or a virtual machine. Ceph provides two ways of identity authentication: none and CephX; none indicates that the client does not need to access the Ceph storage cluster through a key, which is obviously not recommended; the CephX is essentially a symmetric encryption protocol, the encryption algorithm is AES, and the AES is used for identifying the identity of a user and authenticating the operation of the user on a client so as to prevent network security problems such as man-in-the-middle attack, data tampering and the like.
In order to support batch creation, many cloud platforms provide an image distribution function to distribute an image cache to a node in advance; however, the RBDiso with the CephX authentication does not support hot plug at present, that is, the optical disc cannot be mounted and unloaded online when the RBDiso with the CephX authentication is used; in order to realize the batch iso creation of the virtual machine, most platforms provide an image distribution function, and image distribution is performed before batch creation, which undoubtedly increases the inconvenience of cloud platform operation.
Disclosure of Invention
The embodiment of the application provides a method and a device for achieving batch ISO creation of CephX authentication virtual machines, and aims to solve the problems that in the prior art, hot plugging of an optical disc is not supported when CephX authentication is used, and the virtual machines cannot be created in batch ISO without an image cache.
In a first aspect, an embodiment of the present application provides an implementation method for creating CephX authenticated virtual machines in batch ISO, including:
presetting a mapping cache record table and a mapping cache mapping record table of unique constraint, wherein the mapping cache record table is used for recording mapping cache in a target node, and the mapping cache mapping record table is used for recording mapping cache mapping in the target node;
judging whether the target node has a mapping cache or not through the mapping cache record table;
storing records according to the judgment result of the mapping cache and initiating a mapping distribution request to the mirror node component;
after receiving the image distribution request, the image node component performs image distribution caching according to a preset image distribution rule;
judging whether the target node has mapping of the mapping cache or not through the mapping cache mapping record table;
storing a record according to the judgment result of the mapping cache and initiating a mapping cache mapping request to the computing node component;
and after receiving the mapping request of the mapping cache, the computing node component carries out mapping cache mapping according to a preset mapping cache mapping rule.
Further, the saving a record according to the judgment result of the image cache and initiating an image distribution request to the mirror node component includes:
if the mapping cache exists and the distribution state is an active state, storing a mapping cache record in a mapping cache record table;
if the image cache record is successfully stored, setting a mark of the distribution operation as a first mark, and initiating an image distribution request to the mirror image node component;
if the image cache record is failed to be stored, setting a mark of the distribution operation as a second mark, and initiating an image distribution request to the mirror image node component;
and if the mapping cache does not exist, judging whether the target node has the mapping cache again through the mapping cache record table.
Further, after receiving the image distribution request, the mirror node component performs image distribution caching according to a preset image distribution rule, including:
after receiving the image distribution request, the mirror image node component judges the mark of the distribution operation, and if the mark of the distribution operation is a first mark, the image distribution caching is carried out;
if the mark of the distribution operation is a second mark, carrying out cycle detection, calling a synchronous message of the distribution state through the control node, and feeding back the synchronous message of the distribution state to the control node until the distribution state is an active state, wherein the image cache of the control node is successfully distributed;
and when the cycle detection time exceeds a preset threshold value, feeding back a mapping cache distribution failure state to the control node, and entering a rollback state.
Further, the storing the record according to the judgment result of the mapping of the image cache and initiating the mapping request of the image cache to the computing node component includes:
if the mapping state is active, storing a mapping cache mapping record in a mapping cache mapping record table;
if the mapping record of the mapping operation is successfully stored, setting a mark of the mapping operation as a third mark, and initiating a mapping request of the mapping operation to the computing node component;
if the mapping record of the mapping operation is failed to be stored, setting a mark of the mapping operation as a fourth mark, and initiating a mapping request of the mapping operation to the computing node component;
and if the mapping cache mapping does not exist, judging whether the mapping cache mapping already exists in the target node again through the mapping cache mapping record table.
Further, after receiving the mapping request, the compute node component performs mapping according to a preset mapping rule, including:
after receiving the mapping request of the mapping cache, the computing node component judges the mark of the mapping operation, and if the mark of the mapping operation is a third mark, mapping the mapping cache;
if the mark of the mapping operation is a fourth mark, carrying out cycle detection, calling a mapping state through the control node, and feeding back to the control node that the mapping cache is successfully mapped until the mapping state is an active state;
and when the cycle detection time exceeds a preset threshold value, feeding back a mapping failure state of the mapping cache to the control node, and entering a rollback state.
Further, the image cache record table comprises six fields of a first ID, a first image ID, a storage target, a storage type, a distribution state and a resource type; the first ID is a unique constraint field, and is formed by combining values of four fields of the first image ID, the storage target, the storage type and the resource type;
the mapping record table of the image cache comprises six fields of 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 is formed by combining values of three fields of an image ID, a node name and a storage pool name.
Further, the performing image cache mapping includes:
and mapping the RBD block equipment to the virtual machine operating system through the map command of the RBD block.
Further, after the computing node component receives the mapping request and performs mapping according to a preset mapping rule, the method further includes:
the configuration file of the virtual machine is modified by mapping the device path of the ISO cache.
In a second aspect, an embodiment of the present application provides an apparatus for implementing batch ISO creation of CephX authenticated virtual machines, including:
the system comprises a record table presetting module, a mapping cache module and a mapping cache module, wherein the record table presetting module is used for presetting a mapping cache record table and a mapping cache mapping record table of unique constraint, the mapping cache record table is used for recording mapping cache in a target node, and the mapping cache mapping record table is used for recording mapping cache in the target node;
the mapping cache judging module is used for judging whether the target node has mapping cache or not through the mapping cache record table;
the distribution request sending module is used for saving records according to the judgment result of the mapping cache and sending a mapping distribution request to the mirror image node component;
the distribution cache execution module is used for carrying out image distribution cache according to a preset image distribution rule after the image node component receives the image distribution request;
the mapping cache mapping judging module is used for judging whether the target node has mapping cache mapping or not through the mapping cache mapping record table;
the mapping request sending module is used for saving records according to the judgment result of mapping of the mapping cache and sending a mapping cache mapping request to the computing node component;
and the mapping cache mapping execution module is used for mapping the mapping cache according to a preset mapping cache mapping rule after the computing node component receives the mapping cache mapping request.
Further, the distribution request sending module includes: the system comprises a cache record storage unit, a first mark setting module, a second mark setting module and a mapping cache node judgment unit;
the cache record storage unit is used for storing the mapping cache record in the mapping cache record table if the mapping cache exists and the distribution state is an active state; the first mark setting module is used for setting a mark of a distribution operation as a first mark and initiating a mapping distribution request to a mirror image node component if the mapping cache record is successfully stored; the second mark setting module is used for setting a mark of the distribution operation as a second mark and initiating a mapping distribution request to the mirror image node component if the mapping cache record is failed to be stored; and the mapping cache node judging unit is used for judging whether the target node has mapping cache again through the mapping cache record table if the mapping cache does not exist.
Further, the distribution cache execution module includes: the system comprises a distribution cache execution unit, a distribution cycle detection unit and a distribution rollback state unit;
the distribution cache execution unit is used for judging the mark of distribution operation after the mirror image node assembly receives the image distribution request, and if the mark of the distribution operation is a first mark, the image distribution cache is carried out; the distribution cycle detection unit is used for realizing cycle detection if the mark of the distribution operation is a second mark, calling a synchronous message of a distribution state through the control node, and feeding back the synchronous message to the control node to successfully cache and distribute the image until the distribution state is an active state; and the distribution rollback state unit is used for feeding back the mapping cache distribution failure state to the control node and entering a rollback state when the cycle detection time exceeds a preset threshold value.
Further, the mapping request sending module includes: the system comprises a mapping cache record storage unit, a third mark setting module, a fourth mark setting module and a cache mapping node judgment unit;
the mapping cache record storage unit is used for storing mapping cache mapping records in a mapping cache mapping record table if mapping cache mapping exists and the mapping state is an active state; the third mark setting module is used for setting a mark of the mapping operation as a third mark and initiating a mapping request of the mapping cache to the computing node component if the mapping record of the mapping cache is successfully stored; the fourth mark setting module is used for setting a mark of the mapping operation as a fourth mark and initiating a mapping request of the mapping cache to the computing node component if the mapping record of the mapping cache is failed to be stored; and the cache mapping node judging unit is used for judging whether the target node has mapping cache mapping again through the mapping cache mapping record table if the mapping cache mapping does not exist.
Further, the image cache mapping execution module includes: the device comprises a cache mapping execution unit, a mapping cycle detection unit and a mapping rollback state unit;
the cache mapping execution unit is used for judging the mark of the mapping operation after the computing node component receives the mapping request of the mapping cache, and if the mark of the mapping operation is a third mark, mapping the mapping cache;
the mapping cycle detection unit is used for carrying out cycle detection if the mark of the mapping operation is a fourth mark, calling the mapping state through the control node, and feeding back the mapping state to the control node that the mapping cache is successfully mapped until the mapping state is in an active state;
and the mapping rollback state unit is used for feeding back a mapping failure state of the mapping cache to the control node and entering a rollback state when the cycle detection time exceeds a 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 a map command of the RBD block.
Further, the method also comprises the following steps: a virtual machine disk configuration module for modifying a configuration file of a virtual machine by mapping an ISO cached device path.
In a third aspect, embodiments of the present application provide a storage medium containing computer-executable instructions, which when executed by a computer processor, are configured to perform the implementation method of batch ISO creation of CephX authenticated virtual machines according to the first aspect.
The method comprises the steps of performing image caching and record saving through an image caching record table by presetting an image caching record table and an image caching mapping record table with unique constraint, initiating an image distribution request, and performing image distribution caching according to a preset image distribution rule; the mapping cache mapping is carried out and the record is stored through the mapping cache mapping record table, the mapping cache mapping request is initiated, and the mapping cache mapping is carried out according to the preset mapping cache mapping rule, so that the problem that the hot plug of the optical disc is not supported when the CephX authentication is used is solved, and the concurrent execution on the same ISO and node is realized, thereby achieving the effect of batch execution.
Drawings
Fig. 1 is a flowchart of an implementation method for creating CephX authenticated virtual machines in batch ISO according to an embodiment of the present application;
fig. 2 is a flowchart of another implementation method for creating CephX certified virtual machines in batch ISO according to an embodiment of the present application;
fig. 3 is a flowchart of another implementation method for creating CephX certified virtual machines in batch ISO according to an embodiment of the present application;
fig. 4 is a flowchart of another implementation method for creating CephX certified virtual machines in batch ISO according to the embodiment of the present application;
fig. 5 is a flowchart of another implementation method for creating CephX certified virtual machines in batch ISO according to the embodiment of the present application;
fig. 6 is a flowchart of an implementation apparatus for creating CephX authenticated virtual machines in batch ISO according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, specific embodiments of the present application will be described in detail with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and are not limiting of the application. It should be further noted that, for the convenience of description, only some but not all of the relevant portions of the present application are shown in the drawings. Before discussing exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart may describe the operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently or simultaneously. In addition, the order of the operations may be re-arranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figure. The processes may correspond to methods, functions, procedures, subroutines, and the like.
The method for realizing batch ISO CephX authentication virtual machine creation includes the steps of conducting image caching and record storage through an image caching record table and an image caching mapping record table with unique constraint through preset image caching record tables, initiating an image distribution request, and conducting image distribution caching according to preset image distribution rules; the mapping cache mapping is carried out and the record is stored through the mapping cache mapping record table, the mapping cache mapping request is initiated, and the mapping cache mapping is carried out according to the preset mapping cache mapping rule, so that the problem that the hot plug of the optical disc is not supported when the CephX authentication is used is solved, and the concurrent execution on the same ISO and node is realized, thereby achieving the effect of batch execution.
The RBD block storage is the most widely used and stable storage type among the 3 storage types provided by Ceph. The RBD block is similar to a disk and can be mounted in a physical machine or a virtual machine. Ceph provides two ways of identity authentication: none and CephX; none indicates that the client does not need to access the Ceph storage cluster through a key, which is obviously not recommended; the CephX is essentially a symmetric encryption protocol, the encryption algorithm is AES, and the AES is used for identifying the identity of a user and authenticating the operation of the user on a client so as to prevent network security problems such as man-in-the-middle attack, data tampering and the like. To support batch creation, many cloud platforms provide an image distribution function to distribute an image cache to the operation of a node in advance. However, the RBDiso with the CephX authentication does not support hot plug at present, that is, the optical disc cannot be mounted and unloaded online when the RBDiso with the CephX authentication is used; in order to realize the batch iso creation of the virtual machine, most platforms provide an image distribution function, and image distribution is performed before batch creation, which undoubtedly increases the inconvenience of cloud platform operation.
Specifically, there are many steps in creating a virtual machine task flow template, such as a virtual machine initialization step, a virtual machine node environment creation detection step, a system disk creation step, a system disk mounting step, a data disk mounting task flow creation step, a network card mounting task flow creation step, a virtual machine startup step, a virtual machine password modification step, a virtual machine renaming step, and the like.
According to the embodiment of the application, the mounting ISO task flow step is added after the mounting network card task flow step, so that the problems that the existing method does not support optical disk hot plug when CephX authentication is used and the virtual machines cannot be established in batches under the condition that image cache does not exist are solved.
The step of mounting the ISO task flow is a nested subtask flow, and the task flow comprises a step of mounting ISO initialization, a step of detecting and distributing image cache, a step of detecting and mapping ISO cache, a step of modifying virtual machine optical disk configuration and a step of mounting optical disk completion.
Exemplary, mount ISO initialization step: generally, some operations before ISO are mounted, such as changing the task state of the virtual machine to be mounting an optical disc, etc., so as to prevent other people from performing other operations on the virtual machine.
Specifically, a step of detecting and distributing image cache is added in a mounted ISO task flow template, and the step can be executed on the same ISO and node concurrently, so that the effect of batch execution is achieved; specifically, steps of detecting and mapping ISO cache are added in a mounted ISO task flow template, the problem that hot plug of an optical disc is not supported when CephX authentication is used is solved by mapping RBD block equipment to an operating system through a map command of the RBD block, and meanwhile, the steps can be executed on the same ISO and node simultaneously, and the effect of batch execution is achieved.
Fig. 1 is a flowchart of a method for creating CephX authenticated virtual machines in batch ISO according to an embodiment of the present application. Referring to fig. 1, the implementation method for creating a CephX certified virtual machine in batch ISO specifically includes:
Specifically, a mapping cache record table with unique constraint is set, wherein the mapping cache record table comprises six fields of a first ID, a first mapping ID, a storage target, a storage type, a distribution state and a resource type; the first ID is a unique constraint field, and is formed by combining values of four fields of the first image ID, the storage target, the storage type and the resource type.
Illustratively, the storage target refers to a target location of cache storage, and optionally, is generally a storage pool name; the storage types comprise node, vg and RBD; the distribution state comprises descending, deletion and active; the resource types include ISO and image.
Specifically, an image cache mapping record table with unique constraint is set, wherein the image cache mapping record table comprises six fields of 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 is formed by combining values of three fields of an image ID, a node name and a storage pool name.
Illustratively, the mapping state includes mapping and active; the resource types include ISO and image.
And step 120, judging whether the target node has an image cache or not through 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 executes the next steps according to whether the image cache exists.
And step 130, saving records according to the judgment result of the image cache and initiating an image distribution request to the mirror image node component.
Referring to fig. 2, the step 130 can be specifically realized by the steps 1301 and 1304.
Specifically, if it is determined from the map cache record table that the map cache exists on the target node, the present distribution state is determined, and if the present distribution state is an active (active) state, an attempt is made to store the map cache record in the map cache record table.
Specifically, if the image cache record is successfully stored in the image cache record table, because the first ID is formed by combining values of four fields, namely a first image ID, a storage target, a storage type and a resource type, and is uniquely constrained, if the image cache record is successfully stored, it is indicated that the image is not cached on the target node, and no other task exists for distributing the image to the target node, at this time, a flag is set for the distribution operation, and is marked as the first flag, optionally, the first flag is marked as distribute, and an image distribution request is initiated to the mirror node component; it is to be appreciated that the mirror node component is used to implement the image distribution cache.
And 1303, if the image cache record is not stored, setting a mark of the distribution operation as a second mark, and initiating an image distribution request to the mirror node component.
If the image cache record stored in the image cache record table fails, it indicates that other operations are distributing the image to the target node, at this time, a mark is set for the distribution operation, and is marked as a second mark, and optionally, the second mark is marked as check, and an image distribution request is initiated to the mirror node component.
And 1304, if the mapping cache does not exist, judging whether the target node has the mapping cache again through the mapping cache record table.
And if the mapping cache record table judges that the mapping cache does not exist on the target node, judging whether the mapping cache exists on the target node again through the mapping cache record table.
Illustratively, when the virtual machines are created in batch, the flow step of the first virtual machine distributes images, and other virtual machines always detect the state of the images, detect whether the images are distributed completely, and enter the next step when the images are detected to be completed; i.e., the creation of virtual machines is created in parallel.
And step 140, after receiving the image distribution request, the mirror image node component performs image distribution caching according to a preset image distribution rule.
Referring to fig. 3, step 140 can be specifically realized by steps 1401-1403.
Specifically, after receiving the image distribution request, the mirror node component judges a mark of the distribution operation, and if the mark of the distribution operation is a first mark, the distribution operation is performed normally; optionally, the image distribution operation is: distributing the local storage image to a designated node; distributing the distributed storage to the distributed storage; the centralized storage is distributed to the vg of the centralized storage (consistent with the vg where the virtual machine is located).
And 1402, if the mark of the distribution operation is the second mark, performing loop detection, calling a synchronization message of the distribution state through the control node, and feeding back the synchronization message of the distribution state to the control node until the distribution state is an active state, wherein the distribution state is fed back to the control node to successfully distribute the image cache.
Optionally, if the mark of the distribution operation is the second mark, if the mark is check, performing cycle detection, calling a synchronization message for obtaining the distribution state of the image cache to the control node, and feeding back to the control node that the image cache is successfully distributed until the distribution state of the image cache is in an active (active) state, so that the mount ISO process continues to execute the next step.
And step 1403, when the cycle detection time exceeds a preset threshold value, feeding back a mapping cache distribution failure state to the control node, and entering a rollback state.
It can be understood that if the loop detection is overtime, that is, when the loop detection time exceeds a preset threshold value, it indicates that the mapping cache fails to be successfully distributed, a distribution failure state message is fed back to the mapping cache of the control node, and the mount ISO process enters a rollback state, that is, the rollback operation of the previous step is executed; it can be understood that the specific value of the preset threshold value for the loop detection may be set according to the requirement, and the specific value is not limited in this embodiment of the application.
And 150, judging whether the target node has mapping of the mapping cache or not through the mapping cache mapping record table.
It can be understood that the system first determines whether the image cache mapping already exists on the target node through the image cache mapping record table, and executes the next steps according to whether the image cache mapping exists.
Referring to fig. 4, step 160 can be specifically implemented by step 1601-1604.
Specifically, if the mapping cache mapping record table determines that the mapping cache mapping exists on the target node, the mapping state at this time is determined, and if the mapping state at this time is an active (active) state, the mapping cache mapping record is attempted to be stored in the mapping cache mapping table.
specifically, if the mapping record is successfully stored in the mapping record table, because the second ID is formed by combining values of three fields, namely, a second mapping ID, a node name and a storage pool name, and the unique constraint is imposed, if the mapping record is successfully stored, it indicates that the mapping does not have cache mapping on the target node, and no other task exists that is mapping the mapping onto the target node, at this time, a flag is set for the mapping operation, and is marked as a third flag, and optionally, the third flag is marked as a map, and a mapping cache mapping request is initiated to the compute node component; it will be appreciated that the compute node components are used to implement image cache mapping.
if the mapping record of the image cache is stored in the mapping record table of the image cache fails, indicating that other operations are distributing the image cache to the target node, setting a mark for the mapping operation at this time, marking as a fourth mark, and optionally marking as check for the second mark, and initiating a mapping request of the image cache to the computing node component.
And if the mapping cache mapping record table judges that the mapping cache mapping does not exist on the target node, judging whether the mapping cache mapping exists on the target node again through the mapping cache mapping record table.
Referring to FIG. 5, step 170 can be specifically implemented in step 1701-1703.
specifically, after receiving the mapping request of the image cache, the computing node component judges the mark of the mapping operation, and if the mark of the mapping operation is the third mark, the mapping operation is map, and normal mapping operation of the image cache is performed; optionally, the mapping operation of the image cache is: and mapping the RBD block equipment to the virtual machine operating system through the map command of the RBD block.
optionally, if the mapping operation is marked as the fourth mark, and if the mapping operation is marked as check, performing loop detection, calling a synchronization message for obtaining the mapping state of the image cache to the control node, and feeding back to the control node that the image cache mapping is successful when the mapping state of the image cache is an active (active) state, so that the mount ISO process continues to execute the next step.
And step 1703, feeding back a mapping failure state of the mapping cache to the control node when the cycle detection time exceeds a preset threshold value, and entering a rollback state.
It can be understood that if the loop detection is overtime, that is, when the loop detection time exceeds the preset threshold, it indicates that the mapping of the shadow cache is not successful, a mapping failure status message is fed back to the shadow cache of the control node, and the mount ISO process enters a rollback state, that is, the rollback operation of the previous step is performed.
On the basis of the above embodiment, the method for implementing batch ISO creation of the CephX authenticated virtual machine may be further embodied as: after the computing node component receives the mapping request of the mapping cache, the computing node component performs mapping cache mapping according to a preset mapping cache mapping rule, and the method further comprises the following steps:
the configuration file of the virtual machine is modified by mapping the device path of the ISO cache.
For example, the related mount configuration is written into a configuration file of the virtual machine, and the optical disc is still mounted on the virtual machine after the virtual machine is restarted for one time.
The above steps are not performed in the exact order in which they are described, which should be understood as an overall solution.
On the basis of the foregoing embodiment, fig. 6 is a schematic structural diagram of an implementation apparatus for creating CephX authenticated virtual machines in batch ISO according to the embodiment of the present application. Referring to fig. 6, the image processing apparatus provided in this embodiment specifically includes: record table presetting module 301, image cache judging module 302, distribution request sending module 303, distribution cache executing module 304, image cache mapping judging module 305, mapping request sending module 306 and image cache mapping executing module 307.
The record table presetting module 301 is configured to preset a mapping cache record table and a mapping cache mapping record table of unique constraints, where the mapping cache record table is used to record a mapping cache in a target node, and the mapping cache mapping record table is used to record a mapping cache mapping in the target node; the image cache judging module 302 is configured to judge whether the target node already has an image cache according to the image cache record table; the distribution request sending module 303 is configured to store a record according to a determination result of the image cache and send an image distribution request to the mirror node component; the distribution cache execution module 304 is configured to perform image distribution caching according to a preset image distribution rule after the image node component receives the image distribution request; the mapping cache mapping determining module 305 is configured to determine whether a mapping cache mapping already exists in the target node according to the mapping cache mapping record table; the mapping request sending module 306 is configured to store a record according to a determination result of mapping of the mapping cache and send a mapping cache mapping request to the compute node component; the mapping cache mapping executing module 307 is configured to perform mapping cache mapping according to a preset mapping cache mapping rule after the computing node component receives the mapping cache mapping request.
Further, the distribution request sending module 303 includes: the system comprises a cache record storage unit, a first mark setting module, a second mark setting module and a mapping cache node judgment unit;
the cache record storage unit is used for storing the mapping cache record in the mapping cache record table if the mapping cache exists and the distribution state is an active state; the first mark setting module is used for setting a mark of a distribution operation as a first mark and initiating a mapping distribution request to a mirror image node component if the mapping cache record is successfully stored; the second mark setting module is used for setting a mark of the distribution operation as a second mark and initiating a mapping distribution request to the mirror image node component if the mapping cache record is failed to be stored; and the mapping cache node judging unit is used for judging whether the target node has mapping cache again through the mapping cache record table if the mapping cache does not exist.
Further, the distribution cache executing module 304 includes: the system comprises a distribution cache execution unit, a distribution cycle detection unit and a distribution rollback state unit;
the distribution cache execution unit is used for judging the mark of distribution operation after the mirror image node assembly receives the image distribution request, and if the mark of the distribution operation is a first mark, the image distribution cache is carried out; the distribution cycle detection unit is used for realizing cycle detection if the mark of the distribution operation is a second mark, calling a synchronous message of a distribution state through the control node, and feeding back the synchronous message to the control node to successfully cache and distribute the image until the distribution state is an active state; and the distribution rollback state unit is used for feeding back the mapping cache distribution failure state to the control node and entering a rollback state when the cycle detection time exceeds a preset threshold value.
Further, the mapping request sending module 306 includes: the system comprises a mapping cache record storage unit, a third mark setting module, a fourth mark setting module and a cache mapping node judgment unit;
the mapping cache record storage unit is used for storing mapping cache mapping records in a mapping cache mapping record table if mapping cache mapping exists and the mapping state is an active state; the third mark setting module is used for setting a mark of the mapping operation as a third mark and initiating a mapping request of the mapping cache to the computing node component if the mapping record of the mapping cache is successfully stored; the fourth mark setting module is used for setting a mark of the mapping operation as a fourth mark and initiating a mapping request of the mapping cache to the computing node component if the mapping record of the mapping cache is failed to be stored; and the cache mapping node judging unit is used for judging whether the target node has mapping cache mapping again through the mapping cache mapping record table if the mapping cache mapping does not exist.
Further, the image cache mapping execution module 307 includes: the device comprises a cache mapping execution unit, a mapping cycle detection unit and a mapping rollback state unit;
the cache mapping execution unit is used for judging the mark of the mapping operation after the computing node component receives the mapping request of the mapping cache, and if the mark of the mapping operation is a third mark, mapping the mapping cache;
the mapping cycle detection unit is used for carrying out cycle detection if the mark of the mapping operation is a fourth mark, calling the mapping state through the control node, and feeding back the mapping state to the control node that the mapping cache is successfully mapped until the mapping state is in an active state;
and the mapping rollback state unit is used for feeding back a mapping failure state of the mapping cache to the control node and entering a rollback state when the cycle detection time exceeds a preset threshold value.
Further, the image cache mapping execution module 307 is further configured to map the RBD block device to the virtual machine operating system through a map command of the RBD block.
Further, the method also comprises the following steps: a virtual machine disk configuration module for modifying a configuration file of a virtual machine by mapping an ISO cached device path.
The device for realizing batch ISO creation of CephX authenticated virtual machines provided by the embodiment of the application can be used for executing the method for realizing batch ISO creation of CephX authenticated virtual machines provided by the embodiment, and has corresponding functions and beneficial effects.
The mapping cache record table and the mapping cache mapping record table with the unique constraint are preset, mapping cache and record storage are carried out through the mapping cache record table, a mapping distribution request is initiated, and mapping distribution cache is carried out according to a preset mapping distribution rule; the mapping cache mapping is carried out and the record is stored through the mapping cache mapping record table, the mapping cache mapping request is initiated, and the mapping cache mapping is carried out according to the preset mapping cache mapping rule, so that the problem that the hot plug of the optical disc is not supported when the CephX authentication is used is solved, and the concurrent execution on the same ISO and node is realized, thereby achieving the effect of batch execution.
The embodiment of the present application further provides a storage medium containing computer-executable instructions, where the computer-executable instructions, when executed by a computer processor, are configured to perform an implementation method for creating a CephX certified virtual machine in a batch ISO, where the implementation method for creating a CephX certified virtual machine in a batch ISO includes: presetting a mapping cache record table and a mapping cache mapping record table of unique constraint, wherein the mapping cache record table is used for recording mapping cache in a target node, and the mapping cache mapping record table is used for recording mapping cache mapping in the target node; judging whether the target node has a mapping cache or not through the mapping cache record table; storing records according to the judgment result of the mapping cache and initiating a mapping distribution request to the mirror node component; after receiving the image distribution request, the image node component performs image distribution caching according to a preset image distribution rule; judging whether the target node has mapping of the mapping cache or not through the mapping cache mapping record table; storing a record according to the judgment result of the mapping cache and initiating a mapping cache mapping request to the computing node component; and after receiving the mapping request of the mapping cache, the computing node component carries out mapping cache mapping according to a preset mapping cache mapping rule.
Storage medium-any of various types of memory devices or storage devices. The term "storage medium" is intended to include: mounting media such as CD-ROM, floppy disk, or tape devices; computer system memory or random access memory such as DRAM, DDRRAM, SRAM, EDORAM, Lanbas (Rambus) RAM, etc.; non-volatile memory such as flash memory, magnetic media (e.g., 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 a first computer system in which the program is executed, or may be located in a different second 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, such as in different computer systems that are connected by a network. The storage medium may store program instructions (e.g., embodied as a computer program) that are executable by one or more processors.
Of course, the storage medium provided in the embodiments of the present application includes computer-executable instructions, and the computer-executable instructions are not limited to the implementation method for creating a CephX authenticated virtual machine in a batch ISO as described above, and may also perform related operations in the implementation method for creating a CephX authenticated virtual machine in a batch ISO as provided in any embodiment of the present application.
The apparatus, the storage medium, and the computer device for implementing batch creating of CephX certified virtual machines according to ISO provided in the foregoing embodiments may execute the method for implementing batch creating of CephX certified virtual machines according to ISO provided in any embodiment of the present application, and reference may be made to the method for implementing batch creating of CephX certified virtual machines according to ISO provided in any embodiment of the present application without detailed technical details described in the foregoing embodiments.
The foregoing is considered as illustrative of the preferred embodiments of the invention and the technical principles employed. The present application is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present application has been described in more detail with reference to the above embodiments, the present application is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (10)
1. A method for realizing batch ISO creation of CephX authentication virtual machines is characterized by comprising the following steps:
presetting a mapping cache record table and a mapping cache mapping record table of unique constraint, wherein the mapping cache record table is used for recording mapping cache in a target node, and the mapping cache mapping record table is used for recording mapping cache mapping in the target node;
judging whether the target node has a mapping cache or not through the mapping cache record table;
storing records according to the judgment result of the mapping cache and initiating a mapping distribution request to the mirror node component;
after receiving the image distribution request, the image node component performs image distribution caching according to a preset image distribution rule;
judging whether the target node has mapping of the mapping cache or not through the mapping cache mapping record table;
storing a record according to the judgment result of the mapping cache and initiating a mapping cache mapping request to the computing node component;
and after receiving the mapping request of the mapping cache, the computing node component carries out mapping cache mapping according to a preset mapping cache mapping rule.
2. The method for realizing batch ISO CephX certification virtual machine creation according to claim 1, wherein the saving of the record according to the judgment result of the image cache and the initiation of the image distribution request to the mirror node component include:
if the mapping cache exists and the distribution state is an active state, storing a mapping cache record in a mapping cache record table;
if the image cache record is successfully stored, setting a mark of the distribution operation as a first mark, and initiating an image distribution request to the mirror image node component;
if the image cache record is failed to be stored, setting a mark of the distribution operation as a second mark, and initiating an image distribution request to the mirror image node component;
and if the mapping cache does not exist, judging whether the target node has the mapping cache again through the mapping cache record table.
3. The method for realizing batch ISO CephX certification virtual machine creation according to claim 2, wherein the image node component performs image distribution caching according to a preset image distribution rule after receiving the image distribution request, and the method comprises:
after receiving the image distribution request, the mirror image node component judges the mark of the distribution operation, and if the mark of the distribution operation is a first mark, the image distribution caching is carried out;
if the mark of the distribution operation is a second mark, carrying out cycle detection, calling a synchronous message of the distribution state through the control node, and feeding back the synchronous message of the distribution state to the control node until the distribution state is an active state, wherein the image cache of the control node is successfully distributed;
and when the cycle detection time exceeds a preset threshold value, feeding back a mapping cache distribution failure state to the control node, and entering a rollback state.
4. The method for realizing batch ISO CephX certification virtual machine creation according to claim 1, wherein the saving of the record according to the judgment result of the mapping and the initiation of the mapping request to the compute node component include:
if the mapping state is active, storing a mapping cache mapping record in a mapping cache mapping record table;
if the mapping record of the mapping operation is successfully stored, setting a mark of the mapping operation as a third mark, and initiating a mapping request of the mapping operation to the computing node component;
if the mapping record of the mapping operation is failed to be stored, setting a mark of the mapping operation as a fourth mark, and initiating a mapping request of the mapping operation to the computing node component;
and if the mapping cache mapping does not exist, judging whether the mapping cache mapping already exists in the target node again through the mapping cache mapping record table.
5. The method for realizing batch ISO CephX certification virtual machine creation according to claim 4, wherein the step of mapping the image cache according to a preset mapping rule of the image cache after the computing node component receives the mapping request of the image cache comprises the following steps:
after receiving the mapping request of the mapping cache, the computing node component judges the mark of the mapping operation, and if the mark of the mapping operation is a third mark, mapping the mapping cache;
if the mark of the mapping operation is a fourth mark, carrying out cycle detection, calling a mapping state through the control node, and feeding back to the control node that the mapping cache is successfully mapped until the mapping state is an active state;
and when the cycle detection time exceeds a preset threshold value, feeding back a mapping failure state of the mapping cache to the control node, and entering a rollback state.
6. The method for realizing batch ISO creation of CephX certified virtual machines according to claim 1, wherein the image cache record table comprises six fields of a first ID, a first image ID, a storage target, a storage type, a distribution state and a resource type; the first ID is a unique constraint field, and is formed by combining values of four fields of the first image ID, the storage target, the storage type and the resource type;
the mapping record table of the image cache comprises six fields of 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 is formed by combining values of three fields of an image ID, a node name and a storage pool name.
7. The method for realizing batch ISO CephX certification virtual machine creation according to claim 1, wherein the mapping the image cache comprises:
and mapping the RBD block equipment to the virtual machine operating system through the map command of the RBD block.
8. The method for realizing batch ISO CephX certification virtual machine creation according to claim 1, wherein after the computing node component receives the mapping request of the image cache and performs the mapping of the image cache according to a preset mapping rule of the image cache, the method further comprises:
the configuration file of the virtual machine is modified by mapping the device path of the ISO cache.
9. An implementation apparatus for batch ISO creation of CephX authentication virtual machines, comprising:
the system comprises a record table presetting module, a mapping cache module and a mapping cache module, wherein the record table presetting module is used for presetting a mapping cache record table and a mapping cache mapping record table of unique constraint, the mapping cache record table is used for recording mapping cache in a target node, and the mapping cache mapping record table is used for recording mapping cache in the target node;
the mapping cache judging module is used for judging whether the target node has mapping cache or not through the mapping cache record table;
the distribution request sending module is used for saving records according to the judgment result of the mapping cache and sending a mapping distribution request to the mirror image node component;
the distribution cache execution module is used for carrying out image distribution cache according to a preset image distribution rule after the image node component receives the image distribution request;
the mapping cache mapping judging module is used for judging whether the target node has mapping cache mapping or not through the mapping cache mapping record table;
the mapping request sending module is used for saving records according to the judgment result of mapping of the mapping cache and sending a mapping cache mapping request to the computing node component;
and the mapping cache mapping execution module is used for mapping the mapping cache according to a preset mapping cache mapping rule after the computing node component receives the mapping cache mapping request.
10. A storage medium containing computer-executable instructions for performing a method for batch ISO creation of CephX certified virtual machines according to any one of claims 1 to 8 when executed by a computer processor.
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| PCT/CN2021/085465 WO2022141922A1 (en) | 2020-12-30 | 2021-04-02 | Method and apparatus for implementing batch iso creation of cephx authentication virtual machines |
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