CN111026422A - Container-based application data upgrading method and device and computer storage medium - Google Patents
Container-based application data upgrading method and device and computer storage medium Download PDFInfo
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- CN111026422A CN111026422A CN201911194147.8A CN201911194147A CN111026422A CN 111026422 A CN111026422 A CN 111026422A CN 201911194147 A CN201911194147 A CN 201911194147A CN 111026422 A CN111026422 A CN 111026422A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F8/00—Arrangements for software engineering
- G06F8/60—Software deployment
- G06F8/65—Updates
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45562—Creating, deleting, cloning virtual machine instances
Abstract
The invention discloses a container-based application data upgrading method, a determining device and a computer storage medium, wherein the method comprises the steps of downloading an application program container to be upgraded; mounting an application data volume mounted by an application program container to be upgraded to a data upgrading container; upgrading the application data in the application data volume by using a data upgrading program of the data upgrading container; the data upgrading container is offline; and upgrading the application program to be upgraded of the application program container to be upgraded. By the mode, the application data in the application data volume mounted by the upgrading application program container can be upgraded.
Description
Technical Field
The present invention relates to the field of application data upgrading of containers, and in particular, to a method and an apparatus for upgrading application data based on a container, and a computer storage medium.
Background
The Docker container is a popular open source container engine at present, and developers can place applications into container images. And at the time of operation, an application data volume can be mounted for the mirror image so as to be used for storing data generated in the operation process of the application program. A particular application data volume may be a network volume or a local volume or a directory map, i.e., the application data volume is separate from the application.
When the version of the application program needs to be upgraded, the version of the container mirror image can be upgraded only by making a mirror image containing the new version of the application program. However, for the upgraded application program, the data in the application data volume also needs to be upgraded correspondingly, so as to ensure that the upgraded application program can still use the data of the application data volume.
Disclosure of Invention
The invention provides a container-based application data upgrading method and device and a computer storage medium, which aim to solve the problem that data needs to be upgraded in the prior art.
In order to solve the technical problems, the invention adopts a technical scheme that: a method for upgrading application data based on a container is provided, and the method comprises the following steps: the application program container to be upgraded is taken off line; mounting the application data volume mounted by the application program container to be upgraded to a data upgrading container; upgrading the application data in the application data volume by using a data upgrading program of the data upgrading container; the data upgrading container is offline; and upgrading the application program to be upgraded of the application program container to be upgraded.
In order to solve the technical problem, the invention adopts another technical scheme that: providing a container-based application data upgrade apparatus, the apparatus comprising a processor and a memory; the memory has stored therein a computer program for execution by the processor to implement the steps of the method as claimed in any one of the above.
In order to solve the above technical problem, another technical solution of the present invention is to provide a computer storage medium, in which a computer program is stored, and the computer program implements the steps of the container-based application data upgrading method when being executed.
Different from the prior art, the invention downloads the application program container to be upgraded and mounts the application data volume mounted on the application program container to be upgraded on the data upgrading container, and further downloads the data upgrading container after upgrading the application data in the application data volume by using the data upgrading program of the data upgrading container, and upgrades the application program container. Therefore, the application data in the application data volume can be upgraded independently and quickly.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a container-based application data upgrade method of the present invention;
FIG. 2 is a flow diagram illustrating the sub-steps of step S12 of FIG. 1;
FIG. 3 is a schematic structural diagram of a first embodiment of a device for upgrading application data based on a container according to the present invention;
FIG. 4 is a schematic structural diagram of a second embodiment of the application data upgrading device based on a container according to the invention;
FIG. 5 is a schematic structural diagram of an embodiment of a computer storage medium according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the application program, the application program can be packaged into a container to form an application program container, and the application program container is released to a physical server supporting the container, so that the application program can be directly run, and the convenience is high.
Specifically, the same application container may be distributed on different physical servers, and the same physical server may also be distributed with different application containers. For each application container distributed on a physical server, the physical server where the application container is located can be acquired by the scheduling system.
In an actual operation process, when an application container runs, specifically, when the application container runs, an application data volume may be mounted on the application container, specifically, the application data volume is separated from the application container and is only associated with the application container in a mounting path manner, so that the application container may access the application data volume, and data generated by the application program during running may be directly stored in the application data volume.
Referring to fig. 1 in detail, fig. 1 is a schematic flowchart of a first embodiment of a method for upgrading application data based on a container according to the present invention, where the method for upgrading application data based on a container includes the following steps.
And S11, downloading the application program container to be upgraded.
When an application program in the application program container runs, an application data volume needs to be mounted on the application program container for storing data generated in the running process of the application program.
In a specific embodiment, if the application container to be upgraded needs to be upgraded, the application data volume needs to be upgraded in order to ensure that the application container after the upgrade can still access the application data volume of the application container before the upgrade.
And because the application program container to be upgraded can access the application data volume in an online state, other operations on the application data volume cannot be performed through other containers.
Specifically, when an operation such as upgrading an application data volume is required, the corresponding application container to be upgraded needs to be offline.
And S12, mounting the application data volume mounted by the application program container to be upgraded to the data upgrading container.
And mounting the application data volume mounted by the application program container to be upgraded to the data upgrading container. Specifically, a data upgrade container for upgrading data in the application data volume is obtained, and the application data volume is mounted to the data upgrade container, so that the data upgrade container can access and upgrade the application data of the application data volume.
In a specific embodiment, the same application program container to be upgraded may be distributed on different physical servers and all need to be upgraded, so that when the application program container to be upgraded needs to be upgraded, the physical server where the application program container to be upgraded is located needs to be acquired. Specifically, before step S12 shown in fig. 1, a physical server on which the application container to be upgraded runs may be determined, and the data upgrade container may be started on the physical server.
That is, in a scenario where the same application program container to be upgraded is distributed on a plurality of physical servers, a plurality of physical servers on which the application program container to be upgraded runs may be obtained first, and the data upgrade container is started on these servers, so that the application data volume for upgrading the application program container may be mounted to the data upgrade container in the same physical server.
Referring to fig. 2, fig. 2 is a sub-step of step S12 in the first embodiment of the method for upgrading application data based on a container according to the present invention. The method specifically comprises the following steps:
s121, acquiring the mounting path and the identifier of the application data volume.
Specifically, the application container to be upgraded is generally distributed in a specific physical server, and the application data volume may also be distributed in the physical server, or may also be distributed in a distributed server, which is not limited herein. However, it should be noted that, for the application data volume to be stored independently of the application data container to be upgraded, the application data volume generally includes a mount path and an identifier, the mount path may specifically be an actual storage path of the application data volume, and the identifier may be regarded as an identity ID of the application data volume, and by providing the mount path to the application data container to be upgraded, the application data container to be upgraded may access the application data volume.
As has been described above, since the application data volume is independent of the container, the application data volume can be mounted on another container as long as the mounting path and the identifier of the application data volume are acquired.
And S122, mounting the application data volume to the data upgrading container according to the mounting path and the identifier.
In a specific embodiment, whether the data upgrade container is a container to be mounted can be determined according to the identifier and the identifier, and the mounting path is provided for the data upgrade container after the determination, so that the application data volume is mounted on the data upgrade container, and the data upgrade container can upgrade the application data in the application data volume.
In a specific embodiment, the application data of the application data volume may have a proprietary format, for example, the application data is in MySQL (relational database management system) type, and needs to be accessed through a MySQL container, in some cases, when an application container to be upgraded is offline, a dependent server container that the application container to be upgraded depends is also offline, for example, the MySQL container may also be offline at the same time, so that the data upgrade container cannot access the application data.
Therefore, the application data volume mounted by the application program container to be upgraded can be further mounted on the dependent service container, and specifically, the dependent service container specifically aims at the format of the application data in the application data volume and can access the application data in the application data volume.
And S13, upgrading the application data in the application data volume by using the data upgrading program of the data upgrading container.
The data upgrade container is formed by packaging the data upgrade program into a container image. The data upgrading program generally comprises an upgrading tool and/or an upgrading script, and can upgrade the application data based on upgrading requirements.
Specifically, after the application data volume is mounted to the data upgrade container, the data upgrade program in the data upgrade container may access and upgrade the application data in the application data volume. It may specifically include steps of upgrading, checking, etc. And are not limited herein.
In other embodiments, if the application data volume mounted by the application program container to be upgraded is further mounted on the dependent service container, the data upgrading program upgrades the application data through the dependent service provided by the dependent service container in the upgrading mode of this step.
Specifically, the dependent service provided by the dependent service container is used for providing interface access to the application data in the application data volume, and the data upgrading program in the data upgrading container is used for upgrading the application data.
And S14, downloading the data upgrading container.
After the application data in the application data volume is upgraded and verified, the successful upgrading is ensured, and the data upgrading container can be taken off line so as to bring convenience to the online upgrading of the application program container to be upgraded.
In other embodiments, the data upgrade container may be further unloaded, and the application data volume of the data upgrade container may be unloaded. Since the data upgrade container is also a container in nature, during the operation process, the relevant application data volume is also mounted on the data upgrade container for storing the application data generated during the operation of the data upgrade container. Therefore, when the data upgrading container is offline or unloaded, the application data volume of the data upgrading container can be further unloaded, so that upgrading traces are eliminated, and space is saved.
And S15, upgrading the application program to be upgraded of the application program container to be upgraded.
The application program to be upgraded of the application program container to be upgraded is upgraded, and specifically, the application program to be upgraded in the application program container to be upgraded can be upgraded through the image container including the application program of the upgrade version.
In a specific embodiment, after the application program to be upgraded is upgraded, the upgraded application program may be started, and the upgraded application program may access the upgraded application data in the application data volume.
Specifically, only the application program container to be upgraded is offline, and the application program container to be upgraded still has the mounting path of the application data volume, so that the application data volume can still be accessed after upgrading, and the application data in the application data volume is also upgraded, so that the application program after upgrading can access the application data after upgrading in the application data volume, and the problem of non-uniform versions does not occur.
In other embodiments, because the application data in the application data volume is upgraded, in order to achieve the effect of backup, the method provided by the invention can further mount a data backup volume on the data upgrade container, and can backup the application data before or after upgrade to the data backup volume.
In other embodiments, the application data volume may be restored according to the application data in the data backup volume.
In summary, the application program container to be upgraded is offline, the application data volume mounted on the application program container to be upgraded is mounted on the data upgrade container, the data upgrade program of the data upgrade container is further used for upgrading the application data in the application data volume, then the data upgrade container is offline, and the application program container is upgraded. Therefore, the application data in the application data volume can be upgraded independently and quickly.
Further, the invention starts the data upgrading container on the physical server by acquiring the physical server operated by the application program container to be upgraded. The method can be suitable for the existing container distributed deployment mode, can locate all the physical servers according to the application program container to be upgraded, and can upgrade the application data in the application data volume mounted by the application program container to be upgraded in all the physical servers.
Furthermore, because the application data volumes may be distributed in distributed servers or physical servers, and under the condition that a plurality of application data volumes need to be upgraded, because of a relatively complex mapping or storage relationship, the application data volume upgrading method and the application data upgrading device directly acquire the mounting path and the identifier of the application data volume mounted by the application program container to be upgraded by aiming at the application program container to be upgraded in each physical server, mount the application data volume to the data upgrading container in the physical server through the mounting path and the identifier, upgrade the application data in the application data volume by depending on the data upgrading program in the data upgrading container, and can be completed in a rapid and uniform manner without confusion.
The application data upgrading method based on the container is generally realized by an application data upgrading device based on the container, so the invention also provides an application data upgrading device based on the container. Referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of a device for upgrading application data based on a container according to the present invention. The application data upgrading device 300 based on the container comprises an offline module 31, a mounting module 32, a data upgrading module 33 and an application upgrading module 34.
The offline module 31 is used for offline an application program container to be upgraded, the mounting module 32 is used for mounting an application data volume mounted by the application program container to be upgraded to a data upgrading container, the data upgrading module 33 is used for upgrading application data in the application data volume by using a data upgrading program of the data upgrading container, the offline module 31 is also used for offline the data upgrading container, and the application upgrading module 34 is used for upgrading the application program to be upgraded of the application program container to be upgraded.
The application data upgrading method based on the container is generally realized by an application data upgrading device based on the container, so the invention also provides an application data upgrading device based on the container. Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a device for upgrading application data based on a container according to the present invention. The container-based application data upgrading device 100 of the present embodiment includes a processor 12 and a memory 11; the memory 11 has stored therein a computer program for execution by the processor 12 for carrying out the steps of the container-based application data upgrade method as described above.
The above-described logical processes of the container-based application data upgrade method are presented as a computer program, which can be stored in a computer storage medium if it is sold or used as a stand-alone software product, and thus the present invention proposes a computer storage medium. Referring to fig. 5, fig. 5 is a schematic structural diagram of a computer storage medium 200 according to an embodiment of the present invention, in which a computer program 21 is stored, and the computer program is executed by a processor to implement the distribution network method or the control method.
The computer storage medium 200 may be a medium that can store a computer program, such as a usb disk, a removable hard disk, a Read-only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, or may be a server that stores the computer program, and the server may send the stored computer program to another device for running or may run the stored computer program by itself. The computer storage medium 200 may be a combination of a plurality of entities from a physical point of view, for example, a plurality of servers, a server plus a memory, or a memory plus a removable hard disk.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A method for upgrading application data based on a container, the method comprising:
the application program container to be upgraded is taken off line;
mounting the application data volume mounted by the application program container to be upgraded to a data upgrading container;
upgrading the application data in the application data volume by using a data upgrading program of the data upgrading container;
the data upgrading container is offline;
and upgrading the application program to be upgraded of the application program container to be upgraded.
2. The data upgrading method according to claim 1, wherein before the step of mounting the application data volume mounted by the application program container to be upgraded to a data upgrading container, the method further comprises:
and determining a physical server operated by the application program container to be upgraded, and starting the data upgrading container on the physical server.
3. The data upgrading method according to claim 1, wherein the step of mounting the application data volume mounted by the application program container to be upgraded to a data upgrading container comprises:
acquiring a mounting path and an identifier of the application data volume;
and mounting the application data volume to the data upgrading container according to the mounting path and the identifier.
4. The data upgrading method according to claim 1, wherein the step of mounting the application data volume mounted by the application program container to be upgraded to a data upgrading container further comprises:
further mounting the application data volume mounted by the application program container to be upgraded to a dependent service container;
the step of upgrading the application data in the application data volume by using the data upgrading program of the data upgrading container comprises:
and upgrading the application data through the dependent service provided by the dependent service container by the data upgrading program.
5. The data upgrade method according to claim 1, the method further comprising:
further mounting a data backup volume for the data upgrading container;
and backing up the application data before or after upgrading to the data backup volume.
6. The data upgrade method according to claim 5, the method further comprising:
and restoring the application data volume by using the application data in the data backup volume.
7. The data upgrade method according to claim 1, wherein the step of bringing the data upgrade container offline further comprises:
uninstalling the application data volume from the data upgrade container.
8. The data upgrade method according to claim 1, the method further comprising:
and starting the upgraded application program, and enabling the upgraded application program to access the upgraded application data in the application data volume.
9. A container-based application data upgrade apparatus, comprising a processor and a memory; the memory has stored therein a computer program for execution by the processor to implement the steps of the method according to any one of claims 1-8.
10. A computer storage medium, characterized in that the computer storage medium stores a computer program which, when executed, implements the steps of the method according to any one of claims 1-8.
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