CN108241558A - A kind of mirror image warehouse back-up device and method - Google Patents
A kind of mirror image warehouse back-up device and method Download PDFInfo
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- G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
- G06F11/14—Error detection or correction of the data by redundancy in operation
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Abstract
The embodiment of the invention discloses a kind of mirror image warehouse back-up device and method, mirror image warehouse back-up device is based on DCOS platforms, including：High Availabitity module, warehouse synchronization module, the High Availabitity module for electing the address of node in master image warehouse, so that when cannot provide service again in any one mirror image warehouse, are switched to the address of node in the master image warehouse；For the address of node according to the master image warehouse, file backup is synchronized between the mirror image warehouse node after mirror image warehouse node before the handover and switching for the warehouse synchronization module.
Description
Technical field
The present invention relates to field of cloud calculation mirror image warehouse redundancy technique more particularly to a kind of mirror image warehouse back-up device and
Method.
Background technology
Existing docker mirror images warehouse backup method mainly includes two kinds：Using docker mirror images as the backup side of granularity
The backup method of method, Docker Trusted Registry.At present, for docker mirror images warehouse method, field is not increased income temporarily not
Relatively good solution is provided.The backup scenario that numerous developers take, mainly using docker mirror images as granularity, to docker
Mirror image carries out the strategy individually backed up manually.Using docker mirror images as the backup scenario of granularity, user is needed with docker
The order of client carries out a series of combination operations, this brings great inconvenience to user, while is also unsatisfactory for automation O＆M
The target of exploitation.Assuming that user need to will be in the mirror back-up in mirror image warehouse A to mirror image warehouse B.User is firstly the need of execution
Docker save orders, mirror image is saved on disk, is then conducted into mirror image warehouse B using docker load orders
In.If the title of mirror image warehouse B is different from the title of mirror image warehouse A, user still needs to utilize docker tag orders and docker
Push orders make it really be saved in mirror image warehouse.In this way, other users could be searched from mirror image warehouse B search or
Person drags pull to the mirror image.For the backup method of Docker Trusted Registry, in commercial field, docker is public
Department develops the commercially produced product of a mirror image management, Docker Trusted Registry (DTR).In DTR, to ensure
The high availability in mirror image warehouse realizes a kind of backup scenario in mirror image warehouse.When user installs DTR for the first time, can create
One cluster, only one of which DTR replica.When user creates a new DTR example, with the DTR's that installs before
Configuration is consistent, and when running identical service, and a new replica can be added in cluster.Creating such as Fig. 1
After shown cluster, the state of any DTR examples changes, and other examples can be changed accordingly in cluster.This
Operation, ensure that the real-time synchronization of DTR, ensure that the consistency of mirror image data.
But the backup scenario in above-mentioned existing docker mirror images warehouse has some limitations, with docker mirrors
Backup scenario as being granularity, it is complicated for operation, user is needed to carry out a large amount of manual command row operation, it is impossible to meet operation maintenance personnel
Needs.The backup scenario of DTR is a commercialized product, and for common user, business ability to bear is for they
One big threshold, is unfavorable for wideling popularize for the program, while its technical detail is opaque, for the user that needs customize,
Secondary development becomes can not possibly.
Invention content
In order to solve the above technical problems, the embodiment of the present invention provides a kind of mirror image warehouse back-up device and method, operation letter
It is single, contribute to the automation O＆M of user, based entirely on open source technology, the authorization business without great number takes, and mirror image warehouse
Backup rate is fast.
The technical proposal of the invention is realized in this way：
The embodiment of the present invention provides a kind of mirror image warehouse back-up device, and described device is based on data center operation system DCOS
Platform, described device include：High Availabitity module, warehouse synchronization module, wherein,
The High Availabitity module, for electing the address of node in master image warehouse, so that in any one mirror image
When warehouse cannot provide service again, it is switched to the address of node in the master image warehouse；
The warehouse synchronization module, for the address of node according to the master image warehouse, mirror image storehouse before the handover
File backup is synchronized between mirror image warehouse node after library node and switching.
Optionally, the High Availabitity module is made of tri- components of zookeeper, nginx, dcos-election.
Optionally, the High Availabitity module, specifically for each mirror image warehouse node addition when, dcos-
Election connection zookeeper create sequence node, and the sequence node carries counter, and dcos-election passes through institute
State the address of node that counter elects master image warehouse.
Optionally, the High Availabitity module is additionally operable to after being conducted an election by the counter of monotonic increase, will elect master
The IP address of the node in mirror image warehouse is stored.
Optionally, the High Availabitity module is additionally operable to conduct an election to dcos-election operation every preset time.
Optionally, the warehouse synchronization module is additionally operable to key and the second mirror image warehouse when the first mirror image warehouse node
When the key of node is identical, file is synchronized between the first mirror image warehouse node and the second mirror image warehouse node
Backup.
Optionally, described device further includes：Mirror image warehouse module, for storing docker mirror images.
Optionally, mirror image warehouse module is made of Registry components, and the Registry components store rear end
Driver is used.
The embodiment of the present invention provides a kind of mirror image warehouse backup method, the method includes：
The address of node in master image warehouse is elected, so that service cannot be provided again in any one mirror image warehouse
When, it is switched to the address of node in the master image warehouse；
According to the address of node in the master image warehouse, mirror image warehouse node before the handover and the mirror image storehouse after switching
File backup is synchronized between the node of library.
Optionally, the method further includes：When the first mirror image warehouse node key and the second mirror image warehouse node it is close
When key is identical, file backup is synchronized between the first mirror image warehouse node and the second mirror image warehouse node.
An embodiment of the present invention provides a kind of mirror image warehouse back-up device and method, based on DCOS platforms, described device packet
It includes：High Availabitity module, warehouse synchronization module, wherein, the High Availabitity module, for electing the ground of the node in master image warehouse
Location so that when cannot provide service again in any one mirror image warehouse, is switched to the address of node in the master image warehouse；
The warehouse synchronization module, for the address of node according to the master image warehouse, mirror image warehouse node before the handover and
File backup is synchronized between mirror image warehouse node after switching.Mirror image warehouse provided in an embodiment of the present invention back-up device and
Method, it is easy to operate, contribute to the automation O＆M of user；Based entirely on open source technology, the authorization business without great number takes；Mirror
Picture warehouse backup rate is fast, without any restrictions to the size of image file.
Description of the drawings
Fig. 1 is existing DTR mirror images warehouse backup method schematic diagram；
Fig. 2 is mirror image warehouse back-up device structure diagram provided in an embodiment of the present invention；
Fig. 3 is DCOS-Registry configuration diagrams provided in an embodiment of the present invention；
Fig. 4 is DCOS-Registry multinodes deployment framework schematic diagram provided in an embodiment of the present invention；
Fig. 5 is mirror image warehouse backup method flow diagram provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
The embodiment of the present invention provides a kind of mirror image warehouse back-up device 10, as shown in Fig. 2, described device is based on data center
Operating system DCOS platforms, described device include：High Availabitity module 101, warehouse synchronization module 102, wherein,
The High Availabitity module 101, for electing the address of node in master image warehouse, so that in any one mirror
When cannot provide service again as warehouse, it is switched to the address of node in the master image warehouse；
The warehouse synchronization module 102, for the address of node according to the master image warehouse, mirror image before the handover
File backup is synchronized between mirror image warehouse node after warehouse node and switching.
Further, the High Availabitity module is made of tri- components of zookeeper, nginx, dcos-election.
Technical solution provided in an embodiment of the present invention is based on DCOS platforms, and secondary open is carried out on the basis of open source technology
Hair.The backup scenario in the docker mirror images warehouse that the embodiment of the present invention is realized, entitled DCOS-Registry.DCOS-Registry
Framework as shown in figure 3, DCOS-Registry is built on DCOS platforms, can include：Warehouse synchronization module, High Availabitity
Module.
Wherein, Open-Source Tools btsync may be used to realize in warehouse synchronization module.Btsync is a file synchronization work
Tool allows user can be between different nodes, rapidly synchronous documents.It supports different operating system, to synchronous documents
Quantity, size etc. it is unlimited.
Since Registry may be deployed on windows or linux, and the file of docker mirror images generally all compares
Greatly, it needs to synchronize as quick as thought between several nodes, btsync's can solve the problems, such as to encounter in these conceptual designs.
As shown in figure 3, High Availabitity module can be by these three component structures of zookeeper, nginx, dcos-election
Into.Nginx, that is, nginx, Zookeeper, that is, zookeeper.
The function of being elected using Leader in zookeeper, a system service of exploitation can elect master image storehouse
The address of node in library, after preventing a certain mirror image warehouse from cannot provide service again, DCOS-Registry can soon switch
The High Availabitity in mirror image warehouse is realized in the address in mirror image warehouse.
Mirror image warehouse provided in an embodiment of the present invention back-up device realizes a kind of master image storehouse based on zookeeper
The electoral procedure dcos-election of library address realizes the High Availabitity in mirror image warehouse.
Wherein, data center operation system (DCOS, Data Center Operating System) is for entire data
Center provides distributed scheduling and resource coordination function, realizes the software stack of data center's grade elastic telescopic ability, it is by institute
The resource for having data center is dispatched and is managed as a computer.Data center operation system DCOS is in entire data
The heart provides distributed scheduling and coordination function, realizes the software stack of data center's grade elastic telescopic ability, it is by all data
The resource at center is dispatched as a computer.
Wherein, docker, that is, Docker, Docker are an application container engines increased income, and allow developer that can be packaged him
Application and rely on packet in a transplantable container, be then published on the Linux machines of any prevalence, can also
Realize virtualization.Container is completely using sandbox mechanism, does not have any interface between each other.Docker uses client-clothes
Device (C/S) the structure pattern of business, Docker containers are managed and create using long-range API.Docker containers by Docker mirror images come
It creates.The relationship of container and mirror image is similar to object and class in Object-Oriented Programming.Docker uses C/S frameworks Docker
Daemon receives the request from client as server-side, and handles these requests (create, run, distribution container).
Wherein, Zookeeper is one distributed, and the distributed application program coordination service of open source code is
Mono- realization increased income of Chubby of Google is the significant components of Hadoop and Hbase.It is one and is carried for Distributed Application
For the software of Consistency service, the function of providing includes：Configuring maintenance, domain name service, distributed synchronization, group service etc..
Further, the High Availabitity module 101, specifically for each mirror image warehouse node addition when, dcos-
Election connection zookeeper create sequence node, and the sequence node carries counter, and dcos-election passes through institute
State the address of node that counter elects master image warehouse.
Specifically, dcos-election is deployed on the node in each mirror image warehouse.Node in each mirror image warehouse adds
Fashionable, dcos-election can connect zookeeper, while create sequence node.Sequence node can add a monotonic increase
Counter, this counter is unique in father node.Dcos-election will carry out leader's according to this counter
Election.If the counter is minimum value, which will become leader, the ground in the master image warehouse of as DCOS-Registry
Location.
Further, the High Availabitity module 101 is additionally operable to after being conducted an election by the counter of monotonic increase, will select
The IP address for enumerating the node in master image warehouse is stored.
Specifically, the address to preserve each mirror image warehouse, Make Path "/election " on znode, deposits wherein
Store up the IP address in mirror image warehouse.After being conducted an election by the counter of monotonic increase, the IP address of leader need to be deposited
Storage.The embodiment of the present invention preserves the IP address of leader wherein using Making Path on znode "/leader ".Each
On znode, the value on "/election " is the IP address of respective node, and still the value of "/leader " is all consistent.
To ensure that user can correctly get the IP address in master image warehouse, the embodiment of the present invention using Nginx come
It provides unified application programming interface (API, Application Programming Interface) to the user, only needs
The interface is asked, user can get correct IP address.Nginx, that is, nginx.
Further, the High Availabitity module 101, is additionally operable to conduct an election to dcos-election every preset time
Operation.
Wherein, preset time can be 5 seconds or 10 seconds, and it is not limited in the embodiment of the present invention.
Specifically, the high reliability to ensure DCOS-Registry, technical solution provided in an embodiment of the present invention will
Dcos-election is added in system service system service.Simultaneously to ensure the mirror image warehouse on some node not
When available, DCOS-Registry can be switched to correct mirror image warehouse in time, and technical solution provided in an embodiment of the present invention exists
A timer is added in systemd, you can preset time to be set to carry out single election master image to dcos-election
The operation in warehouse, for example, setting preset time once selected main operation for 5 seconds to dcos-election progress.
Further, the warehouse synchronization module 102 is additionally operable to key and the second mirror image when the first mirror image warehouse node
When the key of warehouse node is identical, synchronized between the first mirror image warehouse node and the second mirror image warehouse node
File backup.
Specifically, the backup functionality to realize Docker mirror images warehouse, the embodiment of the present invention is using btsync different
Between node, back up in realtime to the file of mirrored storage.First, btsync needs to generate a key secret
Key, to be used when disposing btsync on different nodes.Only need that the secret key are identical, and what is be backed up on node A is interior
Holding will be on automated back-up to other nodes.Secondly, in the configuration file of btsync, the specified file for needing to back up.
Further, as shown in Fig. 2, described device further includes：Mirror image warehouse module 103, for storing docker mirror images.
Further, mirror image warehouse module 103 is made of Registry components, after the Registry components storage
End driver is used.
Specifically, mirror image warehouse module is made of the Registry components in Fig. 3.Registry components are by docker companies
Exploitation, for storing docker mirror images.
Registry components, which need to store rear end driver, to be used cooperatively, available driver have local file system,
S3, Microsoft Azure, OpenStack Swift and Aliyun OSS etc..The scheme of the embodiment of the present invention is designed to simplify
Complexity, using local file system rear end carry out mirror image storage.To ensure the one of DCOS-Registry deployment
Cause property specifies catalogue of the file under same paths as mirrored storage.The deployment order of Registry is：
docker run -d -p 5000:5000 -- restart=always -- name registry-v/var/
lib/registry:/var/lib/registry registry:2.5.0
Further, the backup functionality for realization docker mirror images warehouse, technical solution provided in an embodiment of the present invention need
DCOS-Registry is disposed on multiple node Node, to ensure the realization of election and backup, at least needed in two nodes
Upper deployment DCOS-Registry, deployment framework in each DCOS-Registry as shown in figure 4, dispose a node Node.
Mirror image warehouse provided in an embodiment of the present invention back-up device, it is easy to operate, contribute to the automation O＆M of user；It is complete
Entirely based on open source technology, the authorization business without great number takes；Mirror image warehouse backup rate is fast, to the size of image file without any
Limitation.
The embodiment of the present invention provides a kind of mirror image warehouse backup method, as shown in figure 5, the method may include：
Step 201, the address of node for electing master image warehouse, so that cannot be carried again in any one mirror image warehouse
During for service, it is switched to the address of node in the master image warehouse.
The executive agent of mirror image warehouse provided in an embodiment of the present invention backup method be mirror image warehouse back-up device, this method
Based on DCOS platforms, mirror image warehouse back-up device can include High Availabitity module, High Availabitity module can by zookeeper,
These three components of nginx, dcos-election are formed.
Specifically, the function that Leader is elected in zookeeper can be utilized, the node in master image warehouse can be elected
Address, after preventing a certain mirror image warehouse from cannot provide service again, DCOS-Registry being capable of soon switchable mirror warehouse
Address, realize the High Availabitity in mirror image warehouse.
After step 202, the address of node according to the master image warehouse, mirror image warehouse node before the handover and switching
Mirror image warehouse node between synchronize file backup.
Specifically, btsync can be utilized to back up in realtime between different nodes to the file of mirrored storage,
Btsync supports that different operating system, quantity, size to synchronous documents etc. are unlimited.
Further, the method further includes：When the key and the second mirror image warehouse node of the first mirror image warehouse node
When key is identical, file backup is synchronized between the first mirror image warehouse node and the second mirror image warehouse node.
Specifically, btsync needs to generate a key secret key, to dispose btsync on different nodes
When use.Only need the secret key identical, the content being backed up on node A will be on automated back-up to other nodes.Secondly,
In the configuration file of btsync, the specified file for needing to back up.
Mirror image warehouse provided in an embodiment of the present invention backup method, it is easy to operate, contribute to the automation O＆M of user；It is complete
Entirely based on open source technology, the authorization business without great number takes；Mirror image warehouse backup rate is fast, to the size of image file without any
Limitation.
It should be understood by those skilled in the art that, the embodiment of the present invention can be provided as method, system or computer program
Product.Therefore, the shape of the embodiment in terms of hardware embodiment, software implementation or combination software and hardware can be used in the present invention
Formula.Moreover, the present invention can be used can use storage in one or more computers for wherein including computer usable program code
The form of computer program product that medium is implemented on (including but not limited to magnetic disk storage and optical memory etc.).
The present invention be with reference to according to the method for the embodiment of the present invention, the flow of equipment (system) and computer program product
Figure and/or block diagram describe.It should be understood that it can be realized by computer program instructions every first-class in flowchart and/or the block diagram
The combination of flow and/or box in journey and/or box and flowchart and/or the block diagram.These computer programs can be provided
The processor of all-purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices is instructed to produce
A raw machine so that the instruction performed by computer or the processor of other programmable data processing devices is generated for real
The device of function specified in present one flow of flow chart or one box of multiple flows and/or block diagram or multiple boxes.
These computer program instructions, which may also be stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction generation being stored in the computer-readable memory includes referring to
Enable the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one box of block diagram or
The function of being specified in multiple boxes.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps are performed on calculation machine or other programmable devices to generate computer implemented processing, so as in computer or
The instruction offer performed on other programmable devices is used to implement in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.
Claims (10)
1. a kind of mirror image warehouse back-up device, which is characterized in that described device is based on data center operation system DCOS platforms, institute
Device is stated to include：High Availabitity module, warehouse synchronization module, wherein,
The High Availabitity module, for electing the address of node in master image warehouse, so that in any one mirror image warehouse
When service cannot be provided again, it is switched to the address of node in the master image warehouse；
The warehouse synchronization module, for the address of node according to the master image warehouse, mirror image warehouse section before the handover
File backup is synchronized between mirror image warehouse node after point and switching.
2. the apparatus according to claim 1, which is characterized in that the High Availabitity module by zookeeper, nginx,
Tri- components of dcos-election are formed.
3. the apparatus of claim 2, which is characterized in that the High Availabitity module, specifically in each mirror image storehouse
When the node in library adds in, dcos-election connection zookeeper create sequence node, and the sequence node, which carries, to be counted
Device, dcos-election elect the address of node in master image warehouse by the counter.
4. the apparatus of claim 2, which is characterized in that the High Availabitity module is additionally operable to through monotonic increase
After counter conducts an election, the IP address for the node for electing master image warehouse is stored.
5. the apparatus of claim 2, which is characterized in that the High Availabitity module is additionally operable to every preset time pair
Dcos-election conducts an election operation.
6. device according to claim 1 or 2, which is characterized in that the warehouse synchronization module is additionally operable to when the first mirror image
When the key of warehouse node is identical with the key of the second mirror image warehouse node, in the first mirror image warehouse node and described second
File backup is synchronized between mirror image warehouse node.
7. the apparatus according to claim 1, which is characterized in that described device further includes：Mirror image warehouse module, for storing
Docker mirror images.
8. device according to claim 7, which is characterized in that mirror image warehouse module is made of Registry components,
The Registry components storage rear end driver is used.
9. a kind of mirror image warehouse backup method, which is characterized in that the method includes：
The address of node in master image warehouse is elected, so that when cannot provide service again in any one mirror image warehouse, is cut
Change to the address of node in the master image warehouse；
According to the address of node in the master image warehouse, mirror image warehouse node and the mirror image warehouse section after switching before the handover
File backup is synchronized between point.
10. according to the method described in claim 9, it is characterized in that, the method further includes：When the first mirror image warehouse node
When key is identical with the key of the second mirror image warehouse node, in the first mirror image warehouse node and the second mirror image warehouse section
File backup is synchronized between point.
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| CN109062663A (en) * | 2018-07-19 | 2018-12-21 | 北京百度网讯科技有限公司 | Mirror image distribution method, device and storage medium |
| CN109600269A (en) * | 2019-01-21 | 2019-04-09 | 云南电网有限责任公司信息中心 | A kind of cloud management platform based on DCOS |
| CN111769950A (en) * | 2020-06-24 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Key management method and system for token authentication in openstack system |
| CN115695453A (en) * | 2022-10-31 | 2023-02-03 | 浪潮云信息技术股份公司 | Method, device, equipment and medium for improving stability of mirror image warehouse |
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| CN109062663A (en) * | 2018-07-19 | 2018-12-21 | 北京百度网讯科技有限公司 | Mirror image distribution method, device and storage medium |
| CN109062663B (en) * | 2018-07-19 | 2020-07-17 | 北京百度网讯科技有限公司 | Mirror image distribution method, device and storage medium |
| CN109600269A (en) * | 2019-01-21 | 2019-04-09 | 云南电网有限责任公司信息中心 | A kind of cloud management platform based on DCOS |
| CN111769950A (en) * | 2020-06-24 | 2020-10-13 | 苏州浪潮智能科技有限公司 | Key management method and system for token authentication in openstack system |
| CN111769950B (en) * | 2020-06-24 | 2022-05-31 | 苏州浪潮智能科技有限公司 | Key management method and system for token authentication in openstack system |
| CN115695453A (en) * | 2022-10-31 | 2023-02-03 | 浪潮云信息技术股份公司 | Method, device, equipment and medium for improving stability of mirror image warehouse |
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