CN111796862B - Method for creating use mirror image by selecting cloud server based on mirror image label and metadata - Google Patents
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Abstract
The invention discloses a method for creating a use mirror image by selecting a cloud server based on a mirror image label and metadata, which belongs to the technical field of cloud computing, and aims to solve the technical problem of reducing the risk that data synchronization may have inconsistent data, and simultaneously reducing operation and maintenance pressure, and adopts the following technical scheme: the method includes the steps that when the image is uploaded to an Openstack, the operating system version and the creation time of the image are stored in labels and metadata of the Openstack image, corresponding labels are added to the uploaded image through commands of the Openstack, metadata information is modified to mark the image, the image is screened according to the metadata and the labels of the image, and cloud server creation is conducted through the screened image.
Description
Technical Field
The invention relates to the technical field of cloud computing, in particular to management of mirror metadata and tags, and specifically relates to a method for creating a use mirror by selecting a cloud server based on the mirror tags and metadata.
Background
In the context of cloud computing, a cloud server is the most basic IaaS product. The main current Iaas layer cloud computing management platform mainly comprises Vmware, openstack and the like. OpenStack is the most influential cloud computing management tool today-managing the resource pool of the IaaS cloud through commands or Web-based visual control panels. Openstack provides nova, cinder, glance, neutron, keystone, etc. components, uses glance to manage the mirror library used by cloud server creation, nova is used for creation of the underlying cloud server. The number of the images created and used by the cloud server is relatively large, and the main stream operating systems such as Windows, centOS, ubuntu, debian, redhat and the like need to be supported, so that the number of the images is relatively large, and the available images are saved through the database at present. However, the images are sometimes required to repair vulnerabilities, perform patch upgrades, modify security settings, and the like, so the images also always need to be changed and synchronized into the database. With the expansion of cloud services, the increase of images, data synchronization is a serious problem, and optimization is urgently needed.
The traditional cloud server creation is specifically: and the cloud server uploads the mirror image warehouse and performs database synchronization. Firstly, uploading the manufactured image to a glance image warehouse of an Openstack, and inputting the generated image id into an image list of a database. Each time a new mirror image is uploaded, the database is required to be updated, and a new mirror image record is added; if the mirror image has problems, the mirror image needs to be shielded, and a mirror image table needs to be modified to modify the in-use state of the mirror image to be no; if the image is restored, the synchronization work of the database used by … … is relatively large, and the synchronization has time intervals, and the data synchronization process may have risks.
The cloud server creation is carried out by using the uploaded mirror image, specifically: mirror selection is needed when the cloud server is created, and a mirror list is queried from a database mirror list in a traditional mode; and the user selects a corresponding image from the image list, and transmits the image id to an image creation flow to create the cloud server. Every time a new image is added, an image table needs to be maintained, and the synchronization of the images is troublesome.
Therefore, how to reduce the risk of data inconsistency during data synchronization and to reduce the operation and maintenance pressure is a technical problem to be solved.
Disclosure of Invention
The technical task of the invention is to provide a method for selecting a cloud server to create a use mirror image based on a mirror image label and metadata, so as to solve the problem of how to reduce the risk that data inconsistency possibly occurs in data synchronization and reduce operation and maintenance pressure.
The technical task of the invention is realized in a mode that a cloud server is selected to create a use mirror image based on a mirror image tag and metadata, and the method is that when the mirror image is uploaded to an Openstack, an operating system version and creation time of the mirror image are stored in the tag and metadata of the Openstack mirror image, a corresponding tag is added to the uploaded mirror image through a command of the Openstack, metadata information (metadata) is modified to mark the mirror image, the mirror image is screened according to the metadata and the tag of the mirror image, and cloud server creation is performed through the screened mirror image.
Preferably, the mirror synchronization is specifically as follows:
(1) Uploading the image to an Openstack;
(2) Setting a mirror image tag (tag) for the mirror image, and adding the version information of the mirror image operating system into the mirror image tag (tag);
(3) Modifying mirrored metadata: adding metadata, buildtime, to the image, identifying creation time of the image;
(4) Judging whether to update the mirror image type table:
① . If the version of the operating system is newly added, the version information of the operating system is required to be added in the mirror image type table, and the step (5) is executed next;
② . If the same version of mirror image is updated, the record is not required to be added, and the step (6) is skipped;
(5) Inputting a database mirror image type table, and adding newly supported mirror image type information, wherein the mirror image type information comprises id, an operating system version, modification time and an in-use state;
(6) And ending.
More preferably, the screening mirror image is created by a cloud server, which is specifically as follows:
S1, selecting a corresponding specification and a network creation cloud server;
S2, acquiring a mirror image type list: inquiring the mirror image type from a database-mirror image type table of a mirror image warehouse, and acquiring a mirror image type list;
S3, selecting a mirror image type: selecting a mirror type to be used from a list of mirror types, such as centOS 7.664 bits;
S4, acquiring a mirror list: inquiring a mirror list containing the label according to the label of the selected mirror type to an opentack;
S5, traversing the mirror image list, acquiring the latest available mirror images according to buildtime attribute of the mirror images, and selecting mirror image ids;
s6, creating a cloud server according to the screened mirror image id;
s7, ending.
More preferably, the fields of the database-mirror type table include id, operating system version, modification time, and availability.
More preferably, the step S2 of obtaining the list of image types is specifically to obtain the currently supported operating system and operating system version.
More preferably, the selecting of the image type in the step S3 is specifically selecting a corresponding operating system version.
More preferably, the step S4 of obtaining the mirror list specifically calls the query mirror list interface of Openstack according to the version information of the selected operating system.
A system for creating a usage image based on image tags and metadata, the system comprising,
The image synchronization unit is used for storing the operating system version and the creation time of the image in the labels and the metadata of the Openstack image while the image is uploaded to the Openstack, adding the corresponding labels (tags) to the uploaded image through the command of the Openstack, and modifying metadata information (metadata) to mark and synchronize the image; wherein the mirror synchronization unit comprises a mirror synchronization unit,
The uploading module is used for uploading the mirror image to an Openstack;
the tag setting and adding module is used for setting a mirror image tag (tag) for the mirror image and adding the mirror image operating system version information into the mirror image tag (tag);
the modification module is used for adding metadata and buildtime to the mirror image and identifying the creation time of the mirror image;
the judging module is used for judging whether to update the mirror image type table:
if the operating system version is newly added, adding new supported mirror image type information including id, operating system version, modification time and in-use state;
if the same version of the image is updated, no operation is needed.
The cloud server creation unit is used for creating a cloud server by screening the mirror images; wherein the cloud server creation unit includes,
The selection module is used for selecting the corresponding specification and the network creation cloud server;
The system comprises an image type list acquisition module, a database-image type list acquisition module and a database-image type list generation module, wherein the image type list acquisition module is used for acquiring an image type list, and the fields of the database-image type list comprise an id, an operating system version, a modification time and whether the database-image type list is available or not; specifically, inquiring the mirror image type from a database-mirror image type table of a mirror image warehouse, and acquiring a currently supported operating system and an operating system version;
the type selection module is used for selecting the image type, in particular selecting the corresponding operating system version;
The mirror list acquisition module is used for acquiring a mirror list, and particularly calling an Openstack query mirror list interface according to the selected operating system version information;
The mirror image list traversing module is used for traversing the mirror image list, acquiring the latest available mirror image according to buildtime attribute of the mirror image, and selecting the mirror image id;
and the creation module is used for creating the cloud server according to the screened mirror image id.
An electronic device, comprising: a memory and at least one processor;
Wherein the memory stores computer-executable instructions;
The at least one processor executes the computer-executable instructions stored by the memory, causing the at least one processor to perform the method of creating a usage image based on the image tag and metadata selection cloud server as described above.
A computer readable storage medium having stored therein computer executable instructions that when executed by a processor perform a method of creating a usage image based on image tags and metadata selection cloud servers as described above.
The method for creating the use mirror image by selecting the cloud server based on the mirror image tag and the metadata has the following advantages:
According to the method, the cloud server is selected to establish the method for using the mirror image according to the mirror image labels and the metadata information in the Openstack mirror image warehouse, so that the work of updating the synchronous mirror image by the mirror image is reduced, and the pressure of operation and maintenance personnel is reduced;
secondly, marking information such as an operating system version and creation time of the image by adding corresponding metadata and labels to the image at the same time when the image is uploaded by the Openstack; when the cloud server is created, a user only needs to select the version of the operating system of the mirror image, the cloud server creation program can acquire a corresponding operating system version list according to the operating system information to the Openstack, and the latest mirror image is selected for creation according to the creation time sequence. After the new mirror image is uploaded, only the mirror image information is required to be maintained, and the newly added mirror image is not required to be synchronized into the database, so that the work of mirror image synchronization is reduced, and the risk of data inconsistency is also reduced;
Thirdly, the database mirror image table needs to be synchronized after the change of the Openstack mirror image every time, including new addition, deactivation, starting and the like, and the data synchronization work is more along with the increase of the mirror image, and data inconsistency is easy to be caused; after the operations of image addition, deactivation, starting and the like, the available image of the user can be reflected in real time, and the situation of image query failure is avoided.
Drawings
The invention is further described below with reference to the accompanying drawings.
FIG. 1 is a flow diagram of a mirror synchronization process;
Fig. 2 is a flow diagram of cloud server creation by screening images.
Detailed Description
The method for creating the use image by selecting the cloud server based on the image tag and the metadata according to the present invention will be described in detail below with reference to the accompanying drawings and the specific embodiments.
Examples:
The method for selecting the cloud server to create the use mirror image based on the mirror image tag and the metadata comprises the steps of storing an operating system version and creation time of the mirror image in the tag and the metadata of the Openstack mirror image while uploading the mirror image to the Openstack, adding a corresponding tag to the uploaded mirror image through an instruction of the Openstack, marking the mirror image by modifying metadata information (metadata), screening the mirror image according to the metadata and the tag of the mirror image based on an operating system, and creating the cloud server by screening the mirror image. As shown in fig. 1, the mirror synchronization is specifically as follows:
(1) Uploading the image to an Openstack;
(2) Setting a mirror image tag (tag) for the mirror image, and adding the version information of the mirror image operating system into the mirror image tag (tag); the version of the operating system of the mirror image is Windows 2008 standard. The mirror tag is set to: windows 2008 standard edition.
(3) Modifying mirrored metadata: adding metadata, buildtime, to the image, identifying creation time of the image;
(4) Judging whether to update the mirror image type table:
① . If the operating system version is newly added, adding the newly added operating system version information into the mirror image type table, and executing the step (5) next;
② . If the same version of mirror image is updated, the record is not required to be added, and the step (6) is skipped;
(5) Inputting a database mirror image type table, and adding newly supported mirror image type information, wherein the mirror image type information comprises id, an operating system version, modification time and an in-use state;
(6) And ending.
As shown in fig. 2, the cloud server creation by screening the images is specifically as follows:
S1, selecting a corresponding specification and a network creation cloud server;
S2, acquiring a mirror image type list: the image type is inquired from a database-image type table of an image warehouse, and the image type list is obtained, in particular to obtain the currently supported operating system and operating system version.
The list of database-mirror type tables mainly has the following fields, as shown in the following table:
s3, selecting a mirror image type: selecting a mirror type to be used from a list of mirror types, such as centOS 7.664 bits; and selects a corresponding operating system version, such as the Windows 2008 standard version.
S4, acquiring a mirror list: inquiring a mirror list containing the label according to the label of the selected mirror type to an opentack; and according to the selected operating system version information, a query mirror list interface of Openstack is called,/v 2/imagestag = "Windows 2008 standard edition".
S5, traversing the mirror image list, acquiring the latest available mirror images according to buildtime attribute of the mirror images, and selecting mirror image ids;
s6, creating a cloud server according to the screened mirror image id;
s7, ending.
Example 2:
the system for creating a usage image based on an image tag and metadata selected cloud server of the present invention includes,
The image synchronization unit is used for storing the operating system version and the creation time of the image in the labels and the metadata of the Openstack image while the image is uploaded to the Openstack, adding the corresponding labels (tags) to the uploaded image through the command of the Openstack, and modifying metadata information (metadata) to mark and synchronize the image; wherein the mirror synchronization unit comprises a mirror synchronization unit,
The uploading module is used for uploading the mirror image to an Openstack;
the tag setting and adding module is used for setting a mirror image tag (tag) for the mirror image and adding the mirror image operating system version information into the mirror image tag (tag);
the modification module is used for adding metadata and buildtime to the mirror image and identifying the creation time of the mirror image;
the judging module is used for judging whether to update the mirror image type table:
if the operating system version is newly added, the newly supported operating system version information is required to be added;
if the same version of the image is updated, no operation is needed.
The cloud server creation unit is used for creating a cloud server by screening the mirror images; wherein the cloud server creation unit includes,
The selection module is used for selecting the corresponding specification and the network creation cloud server;
The system comprises an image type list acquisition module, a database-image type list acquisition module and a database-image type list generation module, wherein the image type list acquisition module is used for acquiring an image type list, and the fields of the database-image type list comprise an id, an operating system version, a modification time and whether the database-image type list is available or not; specifically, inquiring the mirror image type from a database-mirror image type table of a mirror image warehouse, and acquiring a currently supported operating system and an operating system version;
The type selection module is used for selecting the image type, in particular selecting a corresponding operating system version, such as Windows 2008 standard version;
The mirror list acquisition module is used for acquiring a mirror list, and particularly calling an Openstack query mirror list interface according to the selected operating system version information;
The mirror image list traversing module is used for traversing the mirror image list, acquiring the latest available mirror image according to buildtime attribute of the mirror image, and selecting the mirror image id;
and the creation module is used for creating the cloud server according to the screened mirror image id.
Example 3:
the embodiment of the invention also provides electronic equipment, which comprises: a memory and a processor;
Wherein the memory stores computer-executable instructions;
The one processor executes the computer-executable instructions stored by the memory, causing the one processor to perform the method of selecting a cloud server to create a usage image based on the image tag and metadata as in embodiment 1.
Example 6:
The embodiment of the invention also provides a computer readable storage medium, wherein a plurality of instructions are stored, and the instructions are loaded by a processor, so that the processor executes the method for creating the use mirror image by selecting the cloud server based on the mirror image label and the metadata in any embodiment of the invention. Specifically, a system or apparatus provided with a storage medium on which a software program code realizing the functions of any of the above embodiments is stored, and a computer (or CPU or MPU) of the system or apparatus may be caused to read out and execute the program code stored in the storage medium.
In this case, the program code itself read from the storage medium may realize the functions of any of the above-described embodiments, and thus the program code and the storage medium storing the program code form part of the present invention.
Examples of storage media for providing program code include floppy disks, hard disks, magneto-optical disks, optical disks (e.g., CD-ROM, CD-R, CD-RW, DVD-ROM, DVD-R, method M, DVD-RW, DVD+RW for selecting a cloud server to create a usage image based on a mirror label and metadata), magnetic tape, nonvolatile memory cards, and ROM. Alternatively, the program code may be downloaded from a server computer by a communication network.
Further, it should be apparent that the functions of any of the above-described embodiments may be implemented not only by executing the program code read out by the computer, but also by causing an operating system or the like operating on the computer to perform part or all of the actual operations based on the instructions of the program code.
Further, it is understood that the program code read out by the storage medium is written into a memory provided in an expansion board inserted into a computer or into a memory provided in an expansion unit connected to the computer, and then a CPU or the like mounted on the expansion board or the expansion unit is caused to perform part and all of actual operations based on instructions of the program code, thereby realizing the functions of any of the above embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A method for selecting a cloud server to create a used image based on an image tag and metadata is characterized in that the method is that an operating system version and creation time of the image are stored in the tag and metadata of an Openstack image while the image is uploaded to the Openstack, the uploaded image is added with a corresponding tag through an Openstack command, metadata information is modified to mark the image, the image is screened according to metadata and the tag of the operating system based on the image, and cloud server creation is performed through the screened image;
the mirror synchronization is specifically as follows:
(1) Uploading the image to an Openstack;
(2) Setting a mirror image label for the mirror image, and adding the version information of the mirror image operating system into the mirror image label;
(3) Modifying mirrored metadata: adding metadata, buildtime, to the image, identifying creation time of the image;
(4) Judging whether to update the mirror image type table:
① . If the version of the operating system is newly added, the version information of the operating system is required to be added in the mirror image type table, and the step (5) is executed next;
② . If the same version of mirror image is updated, the record is not required to be added, and the step (6) is skipped;
(5) Inputting a database mirror image type table, and adding newly supported mirror image type information, wherein the mirror image type information comprises id, an operating system version, modification time and an in-use state;
(6) Ending;
The cloud server creation by screening the mirror image is specifically as follows:
S1, selecting a corresponding specification and a network creation cloud server;
S2, acquiring a mirror image type list: inquiring the mirror image type from a database-mirror image type table of a mirror image warehouse, and acquiring a mirror image type list;
S3, selecting a mirror image type: selecting a mirror type to be used from a mirror type list;
s4, acquiring a mirror list: inquiring a mirror image list containing the label according to the label of the selected mirror image type to the openstack;
S5, traversing the mirror image list, acquiring the latest available mirror images according to buildtime attribute of the mirror images, and selecting mirror image ids;
s6, creating a cloud server according to the screened mirror image id;
s7, ending.
2. The method for creating a usage image based on an image tag and metadata selection cloud server of claim 1, wherein the fields of the database-image type table include id, operating system version, modification time, and availability.
3. The method for creating a usage image by selecting a cloud server based on an image tag and metadata according to claim 1, wherein the step S2 of obtaining the image type list is specifically to obtain the currently supported operating system and operating system version.
4. The method for creating a usage image by selecting a cloud server based on an image tag and metadata according to claim 1, wherein the selecting of the image type in step S3 is specifically selecting a corresponding operating system version.
5. The method for creating the usage image by selecting the cloud server based on the image tag and the metadata according to claim 1, wherein the step S4 of obtaining the image list is specifically to call the query image list interface of Openstack according to the selected operating system version information.
6. A system for creating a usage image based on image tags and metadata, the system comprising,
The image synchronization unit is used for storing the operating system version and the creation time of the image in the label and the metadata of the Openstack image while uploading the image to the Openstack, adding a corresponding label to the uploaded image through an order of the Openstack, and modifying metadata information to mark and synchronize the image; wherein the mirror synchronization unit comprises a mirror synchronization unit,
The uploading module is used for uploading the mirror image to an Openstack;
the tag setting and adding module is used for setting a mirror image tag for the mirror image and adding the version information of the mirror image operating system into the mirror image tag;
the modification module is used for adding metadata and buildtime to the mirror image and identifying the creation time of the mirror image;
the judging module is used for judging whether to update the mirror image type table:
if the operating system version is newly added, adding newly supported mirror image type information including id, operating system version, modification time and in-use state;
If the same version of mirror image is updated, no operation is needed;
the cloud server creation unit is used for creating a cloud server by screening the mirror images; wherein the cloud server creation unit includes,
The selection module is used for selecting the corresponding specification and the network creation cloud server;
The system comprises an image type list acquisition module, a database-image type list acquisition module and a database-image type list generation module, wherein the image type list acquisition module is used for acquiring an image type list, and the fields of the database-image type list comprise an id, an operating system version, a modification time and whether the database-image type list is available or not; specifically, inquiring the mirror image type from a database-mirror image type table of a mirror image warehouse, and acquiring a currently supported operating system and an operating system version;
the type selection module is used for selecting the image type, in particular selecting the corresponding operating system version;
The mirror list acquisition module is used for acquiring a mirror list, and particularly calling an Openstack query mirror list interface according to the selected operating system version information;
The mirror image list traversing module is used for traversing the mirror image list, acquiring the latest available mirror image according to buildtime attribute of the mirror image, and selecting the mirror image id;
and the creation module is used for creating the cloud server according to the screened mirror image id.
7. An electronic device, comprising: a memory and at least one processor;
Wherein the memory stores computer-executable instructions;
The at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the method of creating a usage image based on the image tag and metadata selection cloud server of any of claims 1 to 5.
8. A computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the method of creating a usage image for a cloud server selected based on image tags and metadata as claimed in any one of claims 1 to 5.
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