WO2020207267A1

WO2020207267A1 - Network system, mirror image management method, device and storage medium

Info

Publication number: WO2020207267A1
Application number: PCT/CN2020/081571
Authority: WO
Inventors: 白常明
Original assignee: 阿里巴巴集团控股有限公司
Priority date: 2019-04-08
Filing date: 2020-03-27
Publication date: 2020-10-15
Also published as: CN115633050B; CN111800442B; CN115633050A; CN111800442A

Abstract

Provided are a network system, a mirror image management method, a device and a storage medium. In the embodiment of the present application, by combining central management and control with an edge cloud node, under the management and control of a central management and control device, the edge cloud node can acquire a required mirror image, and an instance corresponding to a cloud computing service can then be created, which provides a condition for processing cloud computing in the edge cloud node closer to a terminal, and the cloud computing service can then be provided for a user by means of resources in the edge cloud node, thereby facilitating a reduction in the response delay and in the cost of bandwidth.

Description

Network system, image management method, equipment and storage medium

This application claims the priority of a Chinese patent application filed on April 8, 2019 with the application number 201910277896.0 and the invention title "network system, image management method, equipment and storage medium", the entire content of which is incorporated into this application by reference .

Technical field

This application relates to the field of computer technology, and in particular to a network system, image management method, equipment, and storage medium.

Background technique

At present, the concept of cloud computing is based on centralized resource management and control. Even if multiple data centers are used for interconnection, all software and hardware resources are still treated as unified resources for management, scheduling, and sales. With the advent of the era of 5G and the Internet of Things and the gradual increase of cloud computing applications, the terminal side has higher and higher requirements for cloud resources in terms of latency and bandwidth. The centralized cloud network can no longer meet the increasing demand on the terminal side. Cloud resource requirements.

Summary of the invention

Various aspects of the present application provide a network system, image management method, device, and storage medium to reduce service response delay and bandwidth cost.

An embodiment of the present application provides an image management method, including: determining a target image that needs to be provided to a first edge cloud node, where the first edge cloud node is any edge cloud node in a network system; The node provides the target image, so that the first edge cloud node uses the target image to provide cloud computing services.

An embodiment of the present application also provides an image management method, including: receiving information of a second edge cloud node issued by a central management and control device and information of a target image that needs to be provided to the first edge cloud node; according to the second edge cloud The information of the node and the target image is obtained from the second edge cloud node. The embodiment of the present application also provides a network system, including:

An embodiment of the present application also provides a network system, including: a central management and control device, and at least one edge cloud node; the central management and control device is used to determine the target image that needs to be provided to the first edge cloud node, which is the first The edge cloud node provides the target image, so that the first edge cloud node uses the target image to provide cloud computing services; wherein the first edge cloud node is any edge cloud node in the network system.

An embodiment of the present application also provides a central management and control device, including: a memory and a processor; the memory is used to store a computer program; when the computer program is executed by the processor, the processor is caused to implement the application Steps in the method embodiment.

The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by one or more processors, the one or more processors are caused to implement the method in the method embodiment of the present application. A step of.

An embodiment of the present application also provides an edge management and control device, including: a memory and a processor; the memory is used to store a computer program; when the computer program is executed by the processor, the processor is caused to implement the application Steps in the method embodiment.

The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by one or more processors, the one or more processors are caused to implement the aforementioned central control device execution The steps in the method embodiment.

The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by one or more processors, the one or more processors are caused to realize that the foregoing can be executed by the edge management device The steps in the method embodiment.

In the embodiment of this application, the central management and control are combined with the edge cloud node. Under the management and control of the central management and control device, the edge cloud node can obtain the required image. This is "put cloud computing in the edge cloud closer to the terminal. "Processing in the node" provides conditions, and can use the resources in the edge cloud node to provide users with cloud computing services, which is conducive to reducing response delays and reducing bandwidth costs.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1a is a schematic structural diagram of a network system provided by an exemplary embodiment of this application;

FIG. 1b is a schematic structural diagram of another network system provided by an exemplary embodiment of this application;

FIG. 1c is a schematic structural diagram of another network system provided by an exemplary embodiment of this application;

FIG. 2a is a schematic flowchart of an image management method provided by an exemplary embodiment of this application;

2b is a schematic flowchart of another image management method provided by an exemplary embodiment of this application;

3 is a schematic structural diagram of a central management and control device provided by an exemplary embodiment of this application;

FIG. 4 is a schematic structural diagram of an edge management and control device provided by an exemplary embodiment of this application.

detailed description

In order to make the purpose, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

In view of the technical problem that the existing centralized cloud network can no longer meet the increasing demand for cloud resources on the terminal side, in some embodiments of this application, the central management and control are combined with edge cloud nodes. Under the control of the central control equipment, the edge The cloud node can obtain the required image, and then can create the corresponding instance of the cloud computing service, which provides conditions for "putting the cloud computing in the edge cloud node closer to the terminal for processing", and then can use the edge cloud node Resources provide users with cloud computing services, which is conducive to reducing response delays and reducing bandwidth costs.

Furthermore, in this embodiment, if the image already exists in other edge cloud nodes, the central management and control device can control the edge cloud node that needs the image to obtain it from other edge cloud nodes that already have the image, without the need for the central management and control device to send the image to the edge. Cloud node delivery, on the one hand, can reduce the processing burden of the central control equipment, and on the other hand, it is also beneficial to improve the efficiency of image acquisition.

The technical solutions provided by the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1a is a schematic structural diagram of a network system provided by an exemplary embodiment of this application. As shown in FIG. 1a, the network system 100 includes: a central management and control device 101 and at least one edge cloud node 102; at least one edge cloud node 102 is connected to the central management and control device 101 in a network.

The network system 100 in this embodiment is a cloud computing platform built on edge infrastructure based on cloud computing technology and edge computing capabilities, and is a cloud platform with computing, network, storage, and security capabilities at the edge.

Corresponding to a central cloud or a traditional cloud computing platform, the network system 100 of this embodiment can be regarded as an edge cloud network system. Edge cloud is a relative concept. Edge cloud refers to a cloud computing platform that is relatively close to the terminal. In other words, it is different from central cloud or traditional cloud computing platform. Central cloud or traditional cloud computing platform can include large-scale resources and centralized locations. Data centers, and edge cloud nodes cover a wider network range, and therefore have the characteristics of being closer to the terminal. The resource scale of a single edge cloud node is small, but the number of edge cloud nodes is large, and multiple edge cloud nodes constitute the original Part of the edge cloud in the embodiment. The terminal in this embodiment refers to the demand side of cloud computing services, for example, it may be a terminal or a user side in the Internet, or a terminal or a user side in the Internet of Things. The edge cloud network is a network based on the infrastructure between the central cloud or the traditional cloud computing system and the terminal. Wherein, the network system 100 includes at least one edge cloud node 102, and each edge cloud node 102 includes a series of edge infrastructures. These edge infrastructures include, but are not limited to: distributed data centers (DC), wireless computer rooms or clusters, operations Communication networks, core network equipment, base stations, edge gateways, home gateways, computing devices and/or storage devices and other edge devices and corresponding network environments. It is explained here that the locations, capabilities, and included infrastructure of different edge cloud nodes 102 may be the same or different.

Among them, the network system 100 of this embodiment is combined with a central cloud or a traditional cloud computing platform and other central networks and terminals to form a "cloud edge-end three-body coordination" network architecture. In this network architecture, the network can be forwarded and stored. Tasks such as computing, intelligent data analysis, etc. are processed in each edge cloud node 102 in the network system 100. Since each edge cloud node 102 is closer to the terminal, the response delay can be reduced and the central cloud or traditional cloud computing platform can be reduced. Pressure to reduce bandwidth costs.

How to reasonably schedule the resources of multiple edge cloud nodes and how to manage and control multiple edge cloud nodes to perform cloud computing services with correct and stable logic is an important challenge. In the network system 100 of this embodiment, a central management and control device 101 is deployed. The central management and control device 101 uses the edge cloud node 102 as the management and control object for resource scheduling, image management, instance management and control, operation and maintenance, network, security, etc. At least one edge cloud node 102 in the network system 100 is uniformly managed and controlled, so that cloud computing services are placed in each edge cloud node 102 for processing. In terms of deployment and implementation, the central management and control device 101 can be deployed in one or more cloud computing data centers, or it can be deployed in one or more traditional data centers, and the central management and control device 101 can also be connected to at least one edge cloud managed by it. The nodes jointly constitute an edge cloud network, which is not limited in this embodiment.

For an edge cloud node 102, various resources may be provided externally, such as computing resources such as CPU and GPU, storage resources such as memory and hard disk, and network resources such as bandwidth. In addition, the edge cloud node 102 can also create a corresponding instance based on the image, and provide various cloud computing services externally through the instance. Among them, the image is the basic file needed to create an instance in the edge cloud node. For example, it can be an image file such as an operating system, application, or operation configuration required to provide users with cloud computing services, and it can be in line with edge cloud node computing deployment Requirements, according to a specific series of documents in a certain format made into documents. In addition, there are various forms of images, which can be virtual machine (VM) image files, container (Docker) image files, or various types of application packaging files, etc. The image form can be compatible with the virtualization technology used by cloud computing services. Regarding, this embodiment does not limit this. Corresponding to the image, the implementation form of the instance can be a virtual machine, container, or application.

In combination with the above, in this embodiment, the central management and control device 101 can perform resource scheduling on at least one edge cloud node 102 according to resource requirements, or can perform image management and distribution for at least one edge cloud node 102 according to image requirements. Of course, It is possible to perform resource scheduling on at least one edge cloud node 102 and provide mirroring for at least one edge cloud node 102 according to cloud computing service requirements. Among them, cloud computing service requirements include resource requirements and mirroring requirements. Optionally, the central management and control device 101 may provide a requirement submission portal to the outside, and the requirement submission portal may be a web page, an application page, or a command window. The role of the requirement submission portal is for the requirement to submit its own requirement description information to the central control device 101.

For the resource demander, the resource demand description information can be submitted to the central management and control device 101 through the above demand submission entry. The resource demand description information includes: edge cloud node selection parameters and resource selection parameters; edge cloud node selection parameters include scheduling domains and/or For the performance requirements of edge cloud nodes, the resource selection parameters include resource type, resource quantity, and performance requirements for resource equipment. The central management and control device 101 may perform resource scheduling on at least one edge cloud node according to the resource requirement description information. Optionally, a resource scheduling method includes: the central management and control device 101 determines the scheduled target edge cloud node and the scheduled target edge cloud node from at least one edge cloud node 102 of the network system 100 according to resource demand description information Resource information; according to the resource information, the corresponding resource device in the target edge cloud node is controlled to allocate or reserve resources.

For the mirroring demand side, the mirroring demand description information can be submitted to the central management and control device 101 through the above demand submission entry. The mirroring demand description information can point to the mirror that needs to be used, which can be the mirror itself, or the name, ID and other identification types of the mirror. The information can also be some function description information of the cloud computing service, which can reflect the required image. The central management and control device 101 can obtain the image according to the description information of the image demand; provide the image to the edge cloud node in the network system 100 that needs the image, so that the edge cloud node creates a corresponding instance based on the image, and the instance provides the corresponding cloud externally Computing services.

For the cloud computing service demander, the service demand description information can be submitted to the central management and control device 101 through the above demand submission portal. The service demand description information includes resource demand description information and mirroring demand description information. For resource requirement description information and mirroring requirement description information, please refer to the previous description, which will not be repeated here. It is worth noting that the resource requirement description information and the mirroring requirement description information in the service requirement description information can be submitted together or separately. The central management and control device 101 can perform resource scheduling on at least one edge cloud node 102 in the network system 100 according to the service demand description information; provide a mirror image of the scheduled resources in the at least one edge cloud node 102 to use the The scheduled resources provide corresponding cloud computing services.

For the detailed description of the foregoing resource scheduling process and the image management and distribution process, please refer to the following embodiments, which are not detailed here.

It is worth noting that, in the network system 100, the central management and control device 101 can directly control and schedule at least one edge cloud node 102, but it is not limited to this. As shown in FIG. 1b, in the network system 100, in addition to a central management and control device 101 and at least one edge cloud node 102, an edge management and control device 103 is also included. Among them, the number of edge management and control devices 103 may be one or multiple. In addition, the edge management and control device 103 may be deployed in one or more edge cloud nodes 102. In an optional embodiment, as shown in FIG. 1b, an edge management and control device 103 is separately deployed in each edge cloud node 102. Further, each edge cloud node includes one or more resource devices. Optionally, the edge management and control device 103 may be deployed on one resource device in a centralized manner, or may be deployed on multiple resource devices in a distributed manner. In addition, each edge cloud node can include one or more proprietary devices in addition to resource devices. The edge management and control device 103 can be deployed on one dedicated device or distributed on multiple dedicated devices. On the device. Among them, the proprietary device refers to the physical device used to deploy the edge management and control device 103, which is different from the resource device. In addition, the edge management and control device 103 can also be deployed with the central management and control device 101, which is not limited here. In addition, the central management and control device 101 may be deployed in one or more cloud computing data centers or traditional data centers, and may also be deployed in an edge cloud network together with at least one edge cloud node.

In this embodiment, the edge management and control device 103 can assist and cooperate with the central management and control device 101 to manage and control at least one edge cloud node 102. With the assistance of the edge management and control device 103, the central management and control device 101 can manage and schedule at least one edge cloud node 102 more conveniently and efficiently, thereby achieving the purpose of making full use of edge resources.

It is explained here that the central management and control device 101 of this embodiment can be a logical device capable of resource scheduling, image management, operation and maintenance management, etc. These functions can be implemented on a physical machine or virtual machine, or can be distributed Deployed on multiple physical or virtual machines. Of course, the central management and control device in this embodiment may also be one or more physical devices with capabilities such as resource scheduling and image management. The embodiment of the present application does not limit the implementation structure of the central management and control device 101, and any device structure with the foregoing capabilities is applicable to the embodiment of the present application.

Similar to the central management and control device 101, the edge management and control device 103 can also be a logical device, which has the ability to deploy a physical machine (for example, a resource device or a proprietary device in an edge cloud node) or a virtual machine. It can also be deployed on multiple physical machines (such as resource devices or proprietary devices in edge cloud nodes) or virtual machines in a decentralized manner. Of course, the edge control device can also be one or more physical devices with corresponding capabilities. The embodiments of the present application do not limit the implementation structure of the edge management and control device 103, and any device structure with corresponding capabilities is applicable to the embodiments of the present application.

In the embodiment of the present application, a secure and encrypted communication channel is established between the central management and control device 101 and the edge management and control device 103, and interaction is performed based on the communication channel. The communication channel includes a control interface and a data interface, and the central management and control device 101 interacts with the edge management and control device 103 on the control plane and the data plane based on the control interface and the data interface to complete the scheduling and management of the edge cloud node 102. Among them, the data interface is used for data transmission between the central management and control device 101 and the edge management and control device 103. The control interface has but not limited to the following functions:

1. Resource scheduling capability: The central control device 101 can perform resource scheduling on edge cloud nodes from multiple dimensions through a control interface with resource scheduling capabilities (can be referred to as resource scheduling interface for short). The edge cloud node is the central control device 101 for resource scheduling Object;

2. Image management and distribution capabilities: The central management and control device 101 can provide images to edge cloud nodes through a control interface with image management and distribution capabilities (referred to as image management interfaces), so that the edge cloud nodes can create images based on the received images Corresponding instances, providing cloud computing services through instances;

3. Operation and maintenance management capability: The central control device 101 performs operation and maintenance management on edge cloud nodes through a control interface with operation and maintenance management capabilities (referred to as the operation and maintenance management interface). The operation and maintenance management includes but is not limited to: control edge cloud nodes Application, virtualization software, etc., monitor the status, resource usage and infrastructure of the instance.

Corresponding to the capabilities of the aforementioned control interface, the central management and control device 101 of this embodiment has but not limited to the following functions:

1. Information can be described according to service requirements, such as service specifications, areas where services need to be deployed, operator network distribution, network delays, load conditions, bandwidth costs, required resource types and/or resource equipment performance requirements, etc. Resource scheduling for edge cloud nodes;

2. The image required for cloud computing services can be obtained, and the image can be provided to the corresponding resource equipment in the edge cloud node for configuration and installation, so that the corresponding resource equipment can create corresponding instances to provide cloud computing services;

3. Operation and maintenance management and control of edge cloud nodes can be performed, including but not limited to: management and control of applications, virtualized components, instance status, resource usage and/or infrastructure conditions in edge cloud nodes, to achieve remote operation and maintenance, logs Management etc.

In addition to the above functions, the central control equipment can also have other functions, such as security assurance functions, involving the security of the central control equipment, the link security between the central control equipment and the edge control equipment, and the edge cloud nodes. Security of cloud nodes; responsible for maintaining networking information in the network system.

In the network system 100, at least one edge cloud node 102 can form a resource pool, and each edge cloud node 102 serves as a scheduling object, and provides various resources or cloud computing services externally under the scheduling of the central management and control device 101. Among them, the central management and control device 101 and the edge management and control device 102 cooperate with each other to perform resource scheduling on at least one edge cloud node 102 separately, or perform mirror management and distribution for at least one edge cloud node 102 separately, of course, it can also At least one edge cloud node 102 performs resource scheduling and provides a mirror image for at least one edge cloud node 102.

In the following embodiments of the present application, various functions implemented by the central management and control device 101 or the central management and control device 101 and the edge management and control device 103 will be described.

Resource scheduling function:

The central management and control device can perform resource scheduling on at least one edge cloud, which mainly refers to determining the target edge cloud node and target edge cloud node that can be scheduled from at least one edge cloud node 102 in the network system 100 according to service demand description information Scheduled resource information; the resource information is sent to the edge management and control device 103 for the edge management and control device 103 to control the corresponding resource device in the target edge cloud node for resource allocation or reservation. Optionally, the number of target edge cloud nodes can be specified by the user, or can be independently determined by the resource center management and control device according to the service requirement description information, and it can be one or more. The service demand description information can be directly submitted by the service demander, or it can be extracted or calculated from the service-related information submitted by the service demander. The service demander can be a user, an application, a physical machine, or another service that requires a certain service.

The resource scheduling function described here mainly includes the selection of edge cloud nodes and the resource scheduling within the edge cloud nodes, but it is not limited to these two aspects. Among them, the internal resource scheduling of the edge cloud node is specifically embodied as the operation of determining the scheduled resource information in the target edge cloud node and providing resource information. The main purpose is to allocate cloud computing services to the final at the granularity of each edge cloud node. Basic resources, such as server and other resource equipment. Among them, the central control equipment can maintain the information of the resources contained in each edge cloud node as the basis for resource scheduling.

Optionally, the service requirement description information includes edge cloud node selection parameters and resource selection parameters. The edge cloud node selection parameter refers to the parameter required to select the target edge cloud node; the resource selection parameter refers to the information required to select the scheduled resource in the edge cloud node. Based on this, the central management and control equipment can parse out the edge cloud node selection parameters and resource selection parameters from the service demand description information; determine the scheduled target edge cloud node from at least one edge cloud node according to the edge cloud node selection parameters, and according to the resource The selection parameters determine the scheduled resource information in the target edge cloud node.

For example, the service requirement description information may include the scheduling domain and/or the QoS requirements of the cloud computing service, and these parameters may be used as edge cloud node selection parameters. Among them, the scheduling domain points to the area where the service needs to be deployed, which determines the geographic location of the edge cloud node that should be scheduled. The QoS requirements of cloud computing services may include the requirements of cloud computing services on network delay, load conditions, and/or bandwidth costs. Based on this, the central management and control device can select the edge cloud node that can meet the scheduling domain and/or QoS requirements as the target according to the QoS requirements of the scheduling domain and/or cloud computing service, combined with the geographic location and resource remaining amount of at least one edge cloud node Edge cloud node.

For example, the central management and control device may select the edge cloud node pointed to by the scheduling domain as the target edge cloud node in combination with the geographic location of at least one edge cloud node according to the scheduling domain. Alternatively, the central management and control device can also select the edge cloud node that meets the network delay, load and/or bandwidth cost requirements based on the QoS requirements of the cloud computing service, such as network delay, load conditions, and/or bandwidth cost requirements. The edge cloud node serves as the target edge cloud node. Of course, the central management and control equipment can also select the edge cloud node that can meet the scheduling domain and QoS requirements as the target edge cloud based on the QoS requirements of the scheduling domain and cloud computing services at the same time, combined with the geographic location and remaining amount of resources of at least one edge cloud node. node.

In addition to the information such as the scheduling domain and/or the QoS requirements of the service, the service requirement description information can also include the resource type, the number of resources, and/or the performance of the resource equipment required by the cloud computing service. These parameters can be used as resources. Select parameters. Based on this, after determining the target edge cloud node, the central management and control device can determine the scheduled resource information in the target edge cloud node according to the resource selection parameters. The resource information here may include: resource type, resource quantity, and performance requirements for resource devices, so that the edge management and control device can control the corresponding resource device in the target edge cloud node to allocate or reserve resources accordingly. For example, resource types may include, but are not limited to: computing resources such as CPU and GPU, storage resources such as memory and hard disk, and resource types such as bandwidth resources. Taking CPU resources as an example, the number of resources can be 12 CPUs, 24 CPUs, etc., taking memory resources as an example, the number of resources can be 16G memory, 32G memory, etc.; taking bandwidth resources as an example, the number of resources can be 1M bandwidth, 10M Bandwidth etc.

Optionally, the central management and control device can also have the function of computing power orchestration. The computing power orchestration is oriented to relatively complex application scenarios. Multiple cloud computing services are bound together as the smallest resource requirement unit. In this way, in the resource scheduling In the process, multiple cloud computing services can be bound together as a whole, and one or several edge cloud nodes can be selected for them, and the same or several edge cloud nodes can provide resources for them together. Computing power scheduling improves the diversity of resource scheduling and increases the flexibility of resource scheduling, but it does not affect the overall process of resource scheduling.

Image management and distribution functions:

The image management function of the central control device mainly refers to the management of images and the provision of required images for edge cloud nodes. In this way, the edge cloud node can create an instance on the corresponding resource device according to the image, and then the created instance can provide users with required cloud computing services.

In practical applications, there are various scenarios where mirroring needs to be provided for edge cloud nodes. For example, in a case where a user (such as a service demander) submits service demand description information, the central management and control device can provide a corresponding image for the scheduled target edge cloud node. For another example, when there are instances on edge cloud nodes that provide users with cloud computing services, when users need to expand their business, they can submit their expansion requirements to the central control equipment. In order to achieve the purpose of expansion, they need to provide cloud computing services for users. The edge cloud node of the computing service provides a corresponding image, so that the edge cloud node creates a new instance based on the image, so as to achieve the purpose of capacity expansion. For ease of description and distinction, in the following description, the edge cloud node that needs to be mirrored is recorded as the first edge cloud node. The first edge cloud node can be any edge cloud node in the network system, depending on the application scenario. Depends. The image management function of the central control device is described below by taking the central control device providing mirroring for the first edge cloud node as an example.

When it is necessary to provide a mirror image for the first edge cloud node, the central management and control device can first determine the target image that needs to be provided to the first edge cloud node; then, provide the target image for the first edge cloud node for use by the first edge cloud node The target image provides cloud computing services.

In the network system 100 of this embodiment, a mirror library is maintained, and the mirror library is used to store images in the system. Users can choose to use the mirror in the mirror library. For example, the user can be provided with a mirror configuration interface with a drop-down menu. The drop-down menu includes many mirrors that can be selected by the user, and the user can choose the mirror to use. Based on this, when it is necessary to provide a mirror image for the first edge cloud node, the central control device can obtain the image required by the first edge cloud node from the mirror library, and then provide the image to the first edge cloud node, and use the image The permissions are open to the corresponding users. Optionally, the central management and control device may directly issue the target image to the first edge cloud node, or instruct the first edge cloud node to download the target image to a designated storage location.

In addition, the central control device can also maintain the correspondence between the issued image and the edge cloud node where the issued image is located. The correspondence relationship may include the identification information of the issued image and the identification information of the edge cloud node where the image has been issued. The issued image refers to the image that the central control device has provided (for example, issued) to one or some edge cloud nodes; the edge cloud node where the issued image is located refers to the edge cloud node to which the issued image is provided. The same image may be provided (for example, distributed) to one edge cloud node, or may be provided (for example, distributed) to multiple edge cloud nodes.

Based on the maintained correspondence between the issued image and the edge cloud node where the issued image is located, when the image needs to be provided for the first edge cloud node, the central management and control device can also control the first edge cloud node from the image that already has the image. Other edge cloud nodes acquire the image without directly providing the image to the first edge cloud node, which can reduce the processing burden of the central control device to a certain extent, and can also improve the efficiency of image acquisition under the condition of reasonable control.

In detail, when it is necessary to provide a mirror image for the first edge cloud node, the central management and control device may determine the mirror image that needs to be provided to the first edge cloud node. For ease of description and distinction, in the embodiment of the present application, it will be required to The image provided by the cloud node is recorded as the target image; according to the information of the target image, a match is made in the correspondence between the maintained issued image and the edge cloud node where the issued image is located; if the corresponding relationship is matched with the target Mirror the corresponding second edge cloud node, which means that the target image has been provided to the second edge cloud node, then the target image at the second edge cloud node can be provided to the first edge cloud node; where the second edge cloud node The node can also be an edge cloud node in the network system, and the number can be one or more. For the first edge cloud node, under the control of the central management and control device 101, the target image at the second edge cloud node can be obtained.

It is explained here that in the case that the network system 100 includes the edge management and control device 103, the central management and control device may specifically send the information of the second edge cloud node and the target mirror to the edge management and control device; the edge management and control device 103 may communicate with the second edge cloud node according to the The information of the target image, the target image at the second edge cloud node is provided to the corresponding resource device in the first edge cloud node for the corresponding resource device to create an instance that can provide cloud computing services based on the target image, and then provide it to the service demander The cloud computing service. The information of the second edge cloud node may be any information that can identify the second edge cloud node, for example, it may be information such as the ID, name, or geographic location of the second edge cloud node. The information of the target image can be any information that can identify the target image, such as the ID, name, or number of the target image.

Further, in the case where the edge management and control device 103 is deployed in both the first edge cloud node and the second edge cloud node, the central management and control device 101 may specifically send the information of the second edge cloud node and the target image to the first edge cloud The edge management and control device in the node is used for the edge management and control device in the first edge cloud node to obtain the target image from the second edge cloud node through the communication channel between it and the edge management and control device in the second edge cloud node and provide it to the second edge cloud node. A corresponding resource device in an edge cloud node. For the edge management and control device 103 in the first edge cloud node, it can receive the information of the second edge cloud node and the target image sent by the central management and control device 101, and according to the information of the second edge cloud node and the target image, it can communicate with the Second, the communication channel between the edge management and control devices in the edge cloud node, obtains the target image from the second edge cloud node, and provides the target image to the corresponding resource device in the first edge cloud node, so that the corresponding resource device can create an image based on the target image. Provide instances of cloud computing services, and then provide cloud computing services.

Furthermore, through the communication channel between the edge management and control device 103 in the first edge cloud node and the edge management and control device in the second edge cloud node, a process of obtaining the target image from the second edge cloud node includes: The edge management and control device 103 in the edge cloud node sends a request for obtaining the target image to the edge management and control device 103 in the second edge cloud node through the communication channel between it and the edge management and control device in the second edge cloud node. Carry the information of the target image. The edge management and control device 103 in the second edge cloud node receives the request, and determines whether there is a target image in the second edge cloud node according to the target image information carried in the request, and whether there is a target image in the second edge cloud node Next, through the communication channel between it and the edge management and control device 103 in the first edge cloud node, the target image is returned to the edge management and control device 103 in the first edge cloud node, or the target image is mirrored in the second edge cloud node The storage address of is returned to the edge management and control device 103 in the first edge cloud node. The edge management and control device 103 in the first edge cloud node receives the target image returned by the edge management and control device 103 in the second edge cloud node, or receives the target image returned by the edge management and control device 103 in the second edge cloud node in the second edge cloud The storage address in the node, read or download the target image according to the storage address.

It is worth noting that the edge management and control device 103 in the first edge cloud node and the edge management and control device 103 in the second edge cloud node may establish a communication channel by themselves, or may establish a channel under the control of the central management and control device 101. Optionally, the central management and control device can also control the establishment of communication channels between different edge management and control devices, and is responsible for maintaining the information of the existing communication channels between the edge management and control devices, for example, which edge management and control devices have established communication channels and communication When the channel is established, the status of the communication channel, and the retention time information. Based on this, after the central management and control device determines that the target image has been provided to the second edge cloud node, and before providing the information of the second edge cloud node and the target image to the edge management and control device in the first edge cloud node, it can also According to the information of the existing communication channel between the maintained edge management and control devices, determine whether there is a communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node; if the judgment result is No, that is, there is no communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node, you can control the edge management and control device in the first edge cloud node and the second edge cloud The edge management and control device in the node establishes a communication channel, so that the edge management and control device in the first edge cloud node can obtain the target image from the second edge cloud node through the communication channel. In addition, after the edge management and control device in the first edge cloud node establishes a communication channel with the edge management and control device in the second edge cloud node, the central management and control device provides information about the second edge cloud node and the target image to the first edge cloud node Edge control equipment in China. Of course, if the judgment result is yes, that is, there is already a communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node, you can directly mirror the second edge cloud node and the target The information is provided to the edge management and control device in the first edge cloud node.

It is worth noting that the central management and control device can also provide the edge management and control device in the first edge cloud node with the information of the second edge cloud node and the target image, according to the existing communication channels between the maintained edge management and control devices. Information to determine whether there is a communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node; if the judgment result is no, that is, the edge management and control device in the first edge cloud node and If there is no communication channel between the edge management and control devices in the second edge cloud node, the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node can be controlled to establish a communication channel to facilitate the first The edge management and control device in the edge cloud node can obtain the target image from the second edge cloud node through the communication channel.

In some optional embodiments, in order to ensure the efficiency of obtaining the target image by the first edge cloud node, the central management and control device may also provide the target image at the second edge cloud node to the first edge cloud node according to the second edge cloud node. The attribute of the cloud node determines whether the second edge cloud node is suitable for providing the target image for the first edge cloud node; if the judgment result is yes, that is, the second edge cloud node is suitable for providing the target image for the first edge cloud node, the first edge cloud node can be 2. The target image at the edge cloud node is provided to the first edge cloud node; if the judgment result is no, the target image can be obtained from the image library and the target image is provided to the first edge cloud node.

It is worth noting that according to different application scenarios and application requirements, different attributes of the second edge cloud node can be combined to determine from different angles whether the second edge cloud node is suitable for providing the target image for the first edge cloud node. The following example illustrates:

For example, the operator to which the second edge cloud node belongs can be combined to determine whether the operator to which the second edge cloud node belongs is the same as the operator to which the first edge cloud node belongs; if the judgment result is yes, it means that the second edge cloud node is The first edge cloud node is an edge cloud node under the same operator. The two can perform data transmission, and the data transmission rate is faster than the cross-operator data transmission rate, which is suitable for providing target mirroring for the first edge cloud node.

For another example, the location attribute of the second edge cloud node can be combined to determine whether the distance between the second edge cloud node and the first edge cloud node is less than the set distance threshold; if the judgment result is yes, the second edge cloud node It is close to the first edge cloud node, which is suitable for providing target mirroring for the first edge cloud node. In this way, the second edge cloud node that is closer to the first edge cloud node provides a mirror image for the first edge cloud node, which is convenient for the first edge cloud node. The edge cloud node quickly obtains the image to improve efficiency. The distance between the second edge cloud node and the first edge cloud node can be the average distance between two edge cloud nodes, or the distance between the centers of two edge cloud nodes, or two edge clouds The distance between nodes and the nearest outer edge can be flexibly defined according to requirements.

For another example, the bandwidth attribute of the second edge cloud node can be combined to determine whether the available bandwidth of the second edge cloud node is greater than the set bandwidth threshold; if the determination result is yes, it means that the bandwidth resource of the second edge cloud node is relatively abundant, and it is suitable for The first edge cloud node provides the target image, so that the second edge cloud node with sufficient bandwidth resources provides the image for the first edge cloud node, which can ensure the transmission rate of the image, facilitate the first edge cloud node to quickly obtain the image, and improve efficiency .

For another example, the load attribute of the second edge cloud node can be combined to determine whether the load of the second edge cloud node is less than the set load threshold; if the judgment result is yes, it means that the load of the second edge cloud node is lighter, and it is suitable for The first edge cloud node provides the target image, so that the second edge cloud node with lighter load provides the image for the first edge cloud node. On the one hand, it can achieve load balancing, and on the other hand, it is also convenient for the first edge cloud node to quickly obtain the image. ,Improve efficiency.

It is worth noting that the several methods listed above can be used alternatively or combined in any combination. Regarding the combined use, this will not be described too much.

Further, in the case of multiple second edge cloud nodes, the multiple attributes of the second edge cloud node can be combined to use the above several methods in combination, and then select a target image suitable for the first edge cloud node. The second edge cloud node. For example, if there are multiple second edge cloud nodes, the operators to which the multiple second edge cloud nodes belong can be combined to select from the multiple second edge cloud nodes that belong to the same operator as the first edge cloud node. Two edge cloud nodes; furthermore, if there are still multiple second edge cloud nodes selected, the load of the selected second edge cloud node may be further selected from the load to be the smallest or lower than the set load threshold The second edge cloud node provides a target image for the first edge cloud node.

In some optional embodiments, the target image may have been provided to the first edge cloud node. For example, in a business expansion scenario, it is necessary to create a new instance in an edge cloud node that is currently providing cloud computing services to the service demander. The image used is the same as the image used by the previous instance. If the edge cloud node still stores the image used by the previous instance, there is no need to repeatedly provide the image for the edge cloud node. In view of this situation, in order to save resources, the central management and control device can determine the maintained issued image and the edge cloud node where the issued image is located before providing the target image at the second edge cloud node to the first edge cloud node Whether the first edge cloud node is included in the corresponding relationship; if the judgment result is yes, it indicates that the target image has been provided to the first edge cloud node, and the target image is still stored in the first edge cloud node, then the target image can be The information is provided to the first edge cloud node for the first edge cloud node to read the target image stored in it, without the need to transmit the target image again, which can save network resources consumed by the transmission of the target image; if the judgment result is no, it indicates that it has not been sent to The first edge cloud node has provided the target image, or the target image no longer exists in the first edge cloud node, the target image at the second edge cloud node may be provided to the first edge cloud node. Among them, when the edge management and control device is deployed in the first edge cloud node, if the central management and control device determines that the corresponding relationship between the maintained issued image and the edge cloud node where the issued image contains the target image, the target image The image information is provided to the edge management and control device in the first edge cloud node, and the edge management and control device in the first edge cloud node can obtain the target image from the storage space of the image in the first edge cloud node according to the information of the target image, and set the target image The image is provided to the corresponding resource device in the first edge cloud node, so that the corresponding resource device can create an instance that can provide cloud computing services according to the target image.

Further optionally, the same edge cloud node may provide multiple cloud computing services for the same user or different users, and may receive multiple images, and these images will be stored in the edge cloud node. Edge cloud nodes can provide a certain amount of storage space for storing images. Considering that the storage space of the image in the edge cloud node is limited, in order to have enough storage space to store the newly received image, the edge cloud node needs to eliminate the locally stored image. In this embodiment, the central management and control device is responsible for providing a mirroring elimination strategy for edge cloud nodes. The central management and control device can generate the elimination strategy of the image, deliver the elimination strategy to each edge cloud node, and each edge cloud node performs elimination processing on the stored image according to the elimination strategy. Among them, in the case that the network system includes edge management and control equipment, the central management and control equipment can issue the elimination strategy to the edge management and control equipment, and the edge management and control equipment eliminates the images stored in each edge cloud node according to the elimination strategy. Further, in the case where edge management and control equipment is deployed in each edge cloud node, the central management and control equipment can issue the elimination strategy to the edge management and control equipment in each edge cloud node, and the edge management and control equipment in each edge cloud node will follow The elimination strategy eliminates the image stored in the edge cloud node to which it belongs.

Optionally, the elimination strategy may be an elimination strategy with the earliest receiving time, that is, according to the receiving time of the image, the image with the earliest receiving time is preferentially eliminated. Alternatively, the elimination strategy may be the elimination strategy with the least frequency of use, that is, the image with the least frequency of use is preferentially eliminated according to the frequency of use of the image. Alternatively, the elimination strategy may be the elimination strategy with the largest resource occupation, that is, according to the size of the storage space occupied by the image, the image with the largest storage space is first eliminated.

For edge cloud nodes, the image stored in the node can be eliminated regularly according to the above elimination strategy; or, whenever a new image needs to be received or acquired, it can be judged whether there is enough storage space in the node for storage If there is not enough storage space in the current node for the new image, the image stored in the node is eliminated according to the above elimination strategy, so as to store the new image. Taking the first edge cloud node to obtain the target image from the second edge cloud node as an example, before the edge management and control device in the first edge cloud node obtains the target image from the second edge cloud node, the edge in the first edge cloud node The management and control device can determine whether there is enough storage space in the first edge cloud node to store the target image; if there is not enough storage space in the first edge cloud node, it will eliminate the image stored in the first edge cloud node according to the elimination strategy. In order to have enough storage space to store the target image. Optionally, if there is enough storage space in the first edge cloud node, the image stored in the first edge cloud node may not be eliminated temporarily.

Optionally, as shown in FIG. 1c, the network system 100 further includes: an image construction device 104. The image construction device 104 may be deployed in one or more edge cloud nodes, and is mainly responsible for the construction and verification of application images. The image construction device 104 can provide an edge cloud environment, can build an image that is compatible with the edge cloud environment, and can also verify whether the image is compatible with the edge cloud environment. The image that is not compatible with the edge cloud environment can be reconstructed or output Adapted prompt information, etc. Based on the image building device 104, the user can add a new image to the network system 100.

In an optional implementation of adding a new image, a user (such as a service demander) can submit a first request for adding a new image to the central management and control device. The first request includes image construction information; The device sends a construction request, which includes image construction information; after receiving the construction request, the image construction device obtains the image construction information from it, constructs an image adapted to the edge cloud environment based on the image construction information, and returns the constructed image to the center Control equipment; the central control equipment receives the newly constructed mirror image returned by the mirror construction equipment and adds it to the mirror library to continuously enrich the mirror library.

In another optional implementation of newly-added mirroring, a mirroring rule and specification can be provided to users (such as service demanders), allowing users to make or generate mirrors by themselves. The mirrors generated or made by users need to conform to the edge cloud Environmental safety, regulations and other related requirements. After making or generating the image, the user can send a second request for adding a new image to the central control device. The second request includes the image to be added. The new image refers to the image made or generated by the user. This embodiment does not It does not limit the way users make or generate images. The central control device receives the second request, obtains the image to be added from the second request, and sends the image to be added to the image construction device; the image construction device adapts the image to be added to the edge cloud environment; if it is to be added The image is adapted to the edge cloud environment, and the image construction device returns a message to the central control device that the new image is adapted to the edge cloud environment; if the new image is not compatible with the edge cloud environment, the image construction device returns to the central control device A message that the new image is not compatible with the edge cloud environment.

For the central control device, if it receives a message from the mirror construction device that the new image to be added is adapted to the edge cloud environment, it will add the new image to the mirror library; if it receives the new image returned by the mirror construction device Add a message that the image is not compatible with the edge cloud environment, or notify the user to re-submit the newly-added image after reconstruction, or notify the user to provide the reconstruction method of the newly-added image, so that the image-building device can update the image according to the reconstruction method. The newly added image is reconstructed into an image adapted to the edge cloud environment. If the user provides a reconstruction method for the newly added image, the central control device can provide the reconstruction method to the image construction device, and the image construction device reconstructs the newly added image according to the reconstruction method to make it compatible with the edge cloud environment It adapts and returns the reconstructed image to the central control device; the central control device receives the reconstructed image and adds it to the mirror library.

It is explained here that the image construction device 104 may be a logical device with functions such as image construction and verification (for example, it may be an instance that can provide image construction environment and resources, and has functions such as application deployment and image verification). These functions can be It can be deployed on one physical machine or virtual machine, or it can be distributed on multiple physical machines or virtual machines. Of course, the image construction device 104 of this embodiment may also be one or more physical devices with functions such as image construction and verification. The embodiments of this application do not limit the implementation structure of the image construction device, and any device structure with the above-mentioned functions is applicable to the embodiments of this application.

In the embodiments of the present application, not only mirrors can be added to the mirror library, but also mirrors that are not used or have not been used for a long time can be deleted to save storage space. For example, the central management and control device can count the usage frequency of each mirror in the mirror library regularly or in real time, use mirrors with a frequency less than the frequency threshold as the mirrors to be deleted, and execute the mirror deletion process to delete them. For another example, the central management and control device may also receive a mirror deletion request submitted by a user (such as a service demander), use the mirror deleted in the mirror deletion request as a mirror to be deleted, and execute the mirror deletion process to delete it. Wherein, the image deletion request may carry information of the image to be deleted, such as ID, name, or serial number.

For the central control device, any of the above methods can be used to determine the image to be deleted. After the image to be deleted is determined, the image to be deleted can be deleted from the mirror library on the one hand, and the image to be deleted can be indicated to be stored on the other hand. The edge cloud node will delete the image to be deleted. Among them, the central management and control device can match the maintained corresponding relationship between the issued image and the edge cloud node where the issued image is based on the image to be deleted, and determine the edge cloud node storing the image to be deleted according to the matching result. If the third edge cloud node corresponding to the image to be deleted is matched in the corresponding relationship, it means that the image to be deleted has been issued to the third edge cloud node, and the image to be deleted is still stored in the third edge cloud node, so The third edge cloud node sends a deletion instruction, and the deletion instruction carries information about the image to be deleted to instruct the third edge cloud node to delete the image to be deleted stored therein. The third edge cloud node may be one or multiple.

It is explained here that when the network system 100 includes the edge management and control device 103, the central management and control device may specifically send a deletion instruction to the edge management and control device 103; the edge management and control device 103 receives the deletion instruction issued by the central management and control device, and then deletes the instruction from the Obtain the information of the image to be deleted in, and determine whether the image to be deleted is stored in the third edge cloud node according to the information of the image to be deleted; if the image to be deleted is stored, delete the image to be deleted in the third edge cloud node. Further, if the edge management and control device 103 is deployed in the third edge cloud node, the central management and control device 101 may specifically send a deletion instruction to the edge management and control device 103 in the third edge cloud node; the edge management and control device in the third edge cloud node 103 receives the delete instruction issued by the central management and control device, obtains the information of the image to be deleted from the delete instruction, and judges whether the image to be deleted is stored in the third edge cloud node according to the information of the image to be deleted; The image to be deleted stored in the third edge cloud node is deleted.

When the central control device deletes the image to be deleted from the image library, and the edge cloud node storing the image to be deleted also deletes the image to be deleted stored in it, the image deletion process is completed.

For the resource devices in the edge cloud node, no matter how the image is obtained, under the control of the central control device 101 or the edge control device 103, it can provide computing for the instance in the form of virtualization through the ability of hardware or software support , Network, storage and other resources, the corresponding image will be mounted to the corresponding instance in the form of a system disk. After the instance is created, try to start the instance. After the corresponding instance is successfully started, the capabilities of these resource devices can be used to provide cloud computing services. Among them, the resource device provides computing, network, and storage resources for the instance under the control of the edge management and control device 103, including: the edge management and control device applies for related resources from the resources allocated or reserved in the edge node cloud point according to the resource template provided by the central management and control device The computing resources, storage resources and/or network resources of the target edge cloud node are used to create related resources by calling the calculation, storage, network and other executors in the target edge cloud node. Among them, resource creation actions include: processing storage-related resources, creating a system disk for an instance based on the configuration information and content of the image, creating a corresponding data disk based on the resource template, and creating network resources on which the instance depends. For example, IP addresses, virtual switches, etc.; and computing resources required to create instances in combination with resource templates.

Operation and maintenance management functions:

In the embodiments of this application, the central management and control device can control the status (such as health status), resource usage and/or infrastructure conditions of each application, virtualization component, instance in the edge cloud node, and realize remote operation and maintenance, log Management etc. Optionally, in the network system shown in Figure 1a, the central management and control device can directly control the status, resource usage and/or infrastructure conditions of each application, virtualization component, instance in each edge cloud node, and realize remote operation. Maintenance, log management, etc.

Optionally, in the network system shown in FIG. 1b, the central management and control device can perform remote operation and maintenance, log management, etc. on each edge cloud node with the assistance of the edge management and control device. For example, the edge management and control device 103 can monitor the status, resource usage and/or infrastructure conditions of each application, virtualization component, instance in the edge cloud node, obtain monitoring information, and report the monitoring information to the central management and control device. Furthermore, if edge management and control devices are deployed in each edge cloud node, each edge management and control device can control the status of each application, virtualization component, instance, resource usage, and/or infrastructure conditions in the edge cloud node to which it belongs. Perform monitoring and report the monitoring information to the central control equipment. The central management and control device receives the monitoring information reported by each edge management and control device, and performs remote operation and maintenance and/or log management on the edge cloud node to which each edge management and control device belongs based on the monitoring information reported by each edge management and control device.

Regardless of the monitoring method, the central management and control device can uniformly monitor the overall status of each edge cloud node, so that resource scheduling, image management, and operation and maintenance management and control of edge cloud nodes can be more reasonable.

It is explained here that in the case that the central control device and the edge control device are logical devices, in the physical category, the two can be separated or overlapped. For example, as a logical concept, the central control equipment can be deployed on the infrastructure of edge cloud nodes. Preferably, the capabilities of the central management and control device can be deployed to physical devices within the central network (such as a data center, central cloud, or public cloud), and the capabilities of the edge management and control device can be deployed to the edge cloud network (such as one or more edge clouds). Node) within the physical device. Of course, the capabilities of the central control device can also be deployed on physical devices within the edge cloud network (for example, one or more edge cloud nodes).

In the network system provided by the embodiments of the present application, the resources, mirroring, instances, operation and maintenance, network, and security of edge cloud nodes are uniformly controlled based on centralized management and control, which can manage and coordinate edge cloud nodes to the greatest extent , It can reduce errors caused by single-point self-control or unsynchronized information of the entire network, and can use the characteristics of centralized management to achieve the optimization of resource scheduling, avoiding the waste of local resources at the edge.

In addition to the foregoing network system, the embodiments of the present application provide a mirror management method from the perspective of a central management and control device and an edge management and control device, which are described in detail below.

Fig. 2a is a schematic flowchart of an image management method provided by an exemplary embodiment of this application. This embodiment is described from the perspective of central control equipment. As shown in Figure 2a, the method includes:

21a. Determine the target image that needs to be provided to the first edge cloud node, where the first edge cloud node is any edge cloud node in the network system;

22a. Provide a target image for the first edge cloud node, so that the first edge cloud node uses the target image to provide cloud computing services.

In this embodiment, the central control device is combined with the edge cloud node. Under the management and control of the central control device, the edge cloud node can be provided with the required image for the edge cloud node to create a corresponding instance of the cloud computing service. It provides conditions for "putting cloud computing in edge cloud nodes closer to the terminal for processing", and can use the resources in edge cloud nodes to provide users with cloud computing services, which is conducive to reducing response delays and reducing bandwidth costs. For the description of the edge cloud node, refer to the foregoing embodiment, which will not be repeated here.

In practical applications, there are various scenarios where mirroring needs to be provided for edge cloud nodes. For example, in the case where a user (such as a service demander) submits service demand description information, the central management and control device can determine that it needs to provide a corresponding image for the scheduled target edge cloud node. For another example, when there are instances on edge cloud nodes that provide users with cloud computing services, when users need to expand their business, they can submit their expansion requirements to the central control equipment. In order to achieve the purpose of expansion, they need to provide cloud computing services for users. The edge cloud node of the computing service provides a corresponding image, so that the edge cloud node creates a new instance based on the image, so as to achieve the purpose of capacity expansion. For ease of description and distinction, in the following description, the edge cloud node that needs to be mirrored is recorded as the first edge cloud node. The first edge cloud node can be any edge cloud node in the network system, depending on the application scenario. Depends.

In this embodiment, the central management and control device provides a target image for the first edge cloud node as an example to describe the image management process. When it is necessary to provide a target image for the first edge cloud node, the central management and control device can first determine the target image that needs to be provided to the first edge cloud node; then, provide the target image for the first edge cloud node for the first edge cloud node Use the target image to provide cloud computing services.

In an optional implementation manner, the central management and control device may obtain the target image from the image library, provide the target image to the first edge cloud node, and open the use right of the image to the corresponding user. Optionally, the central management and control device may directly issue the target image to the first edge cloud node, or instruct the first edge cloud node to download the target image to a designated storage location.

In another optional implementation manner, the central management and control device maintains a correspondence between the issued image and the edge cloud node where the issued image is located. The correspondence relationship may include the identification information of the issued image and the identification information of the edge cloud node where the image has been issued. The issued image refers to the image that the central control device has provided (for example, issued) to one or some edge cloud nodes; the edge cloud node where the issued image is located refers to the edge cloud node to which the issued image is provided. The same image may be provided to one edge cloud node, or it may be provided to multiple edge cloud nodes.

Based on the correspondence between the maintained issued image and the edge cloud node where the issued image is located, when a target image needs to be provided for the first edge cloud node, the central management and control device can use the information of the target The sent image is matched in the corresponding relationship between the edge cloud node where the sent image is located; if the second edge cloud node corresponding to the target image is matched in the corresponding relationship, it means that the target image has been provided to the second edge cloud Node, the target image at the second edge cloud node can be provided to the first edge cloud node; wherein, the second edge cloud node can also be an edge cloud node in the network system, and the number can be one or more . In this embodiment, the central management and control device does not need to directly provide the image to the first edge cloud node, which can reduce the processing burden of the central management and control device to a certain extent, and is beneficial to improve the efficiency of image acquisition.

It is explained here that when the network system includes an edge management and control device, the central management and control device can specifically send the information of the second edge cloud node and target mirror to the edge management and control device, so that the edge management and control device can use the second edge cloud node and the target The image information provides the target image at the second edge cloud node to the corresponding resource device in the first edge cloud node. Further, if edge management and control devices are deployed in both the first edge cloud node and the second edge cloud node, the central management and control device may specifically send the information of the second edge cloud node and the target image to the edge management and control in the first edge cloud node Device for the edge management and control device in the first edge cloud node to obtain the target image from the second edge cloud node through the communication channel between it and the edge management and control device in the second edge cloud node and provide it to the first edge cloud node The corresponding resource equipment.

Among them, from the perspective of edge management and control equipment, the process of an image management method is shown in Figure 2b, including the following steps:

21b. Receive the information of the second edge cloud node issued by the central management and control device and the information of the target image that needs to be provided to the first edge cloud node;

22b. Obtain the target image from the second edge cloud node according to the information of the second edge cloud node and the target image.

For the edge management and control device, it receives the information of the second edge cloud node and the target image issued by the central management and control device, and obtains the target image from the second edge cloud node according to the information of the second edge cloud node and the target image, and then the target image The image is provided to the corresponding resource device in the first edge cloud node for the corresponding resource device to provide cloud computing services according to the target image.

Optionally, the edge management and control device may be the edge management and control device in the first edge cloud node, and the edge management and control device in the first edge cloud node may receive the information of the second edge cloud node and the target image sent by the central management and control device, according to The information of the second edge cloud node and the target image is obtained from the second edge cloud node through the communication channel between it and the edge management and control device in the second edge cloud node, and the target image is provided to the first edge cloud The corresponding resource device in the node is used for the corresponding resource device to create an instance that can provide cloud computing services according to the target image, and then provide cloud computing services.

In some optional embodiments, the central management and control device can also control the establishment of communication channels between different edge management and control devices, and is responsible for maintaining the information of the existing communication channels between the edge management and control devices, for example, which edge management and control devices can be maintained. The communication channel, when the communication channel was established, the status of the communication channel, and the retention time information. Based on this, after determining that the target image has been provided to the second edge cloud node, and before providing information about the second edge cloud node and the target image to the edge management and control device in the first edge cloud node, the method in this embodiment also It may include: judging whether there is already a communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node based on the information of the existing communication channel between the maintained edge management and control devices; if If the judgment result is no, that is, there is no communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node, then the edge management and control device in the first edge cloud node and the second edge cloud node can be controlled. 2. The edge management and control device in the edge cloud node establishes a communication channel, so that the edge management and control device in the first edge cloud node can obtain the target image from the second edge cloud node through the communication channel. In addition, after the edge management and control device in the first edge cloud node establishes a communication channel with the edge management and control device in the second edge cloud node, the central management and control device provides information about the second edge cloud node and the target image to the first edge cloud node Edge control equipment in China. Of course, if the judgment result is yes, that is, there is already a communication channel between the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node, you can directly mirror the second edge cloud node and the target The information is provided to the edge management and control device in the first edge cloud node.

In some optional embodiments, in order to ensure the efficiency of obtaining the target image by the first edge cloud node, before providing the target image at the second edge cloud node to the first edge cloud node, the method in this embodiment may further include: According to the attributes of the second edge cloud node, determine whether the second edge cloud node is suitable for providing the target image for the first edge cloud node; if the judgment result is yes, that is, the second edge cloud node is suitable for providing the target image for the first edge cloud node, The target image at the second edge cloud node can be provided to the first edge cloud node; if the judgment result is no, the target image can be obtained from the image library and the target image can be provided to the first edge cloud node.

It is worth noting that according to different application scenarios and application requirements, different attributes of the second edge cloud node can be combined to determine whether the second edge cloud node is suitable for providing the target image for the first edge cloud node from different angles. The following example illustrates:

In some optional embodiments, in order to save resources, before the target image at the second edge cloud node is provided to the first edge cloud node, the method of this embodiment further includes: determining whether the maintained issued image is different from the Whether the corresponding relationship of the edge cloud node where the image is issued includes the first edge cloud node; if the judgment result is yes, it indicates that the target image has been provided to the first edge cloud node, and the target image is still stored in the first edge cloud node , The information of the target image can be provided to the first edge cloud node for the first edge cloud node to read the target image stored therein, without the need to transmit the target image again, which can save network resources consumed by transmitting the target image; If the result is no, it indicates that the target image has not been provided to the first edge cloud node, or the target image no longer exists in the first edge cloud node, then the information of the target image at the second edge cloud node can be provided to the first edge cloud node. Among them, when the edge management and control device is deployed in the first edge cloud node, if the central management and control device determines that the corresponding relationship between the maintained issued image and the edge cloud node where the issued image contains the target image, the target image The image information is provided to the edge management and control device in the first edge cloud node, and the edge management and control device in the first edge cloud node can obtain the target image from the storage space of the image in the first edge cloud node according to the information of the target image, and set the target image The image is provided to the corresponding resource device in the first edge cloud node, so that the corresponding resource device can create an instance that can provide cloud computing services according to the target image.

Further optionally, the same edge cloud node may provide multiple cloud computing services for the same user or different users, and may receive multiple images, and these images will be stored in the edge cloud node. Edge cloud nodes can provide a certain amount of storage space for storing images. Considering that the storage space of the image in the edge cloud node is limited, in order to have enough storage space to store the newly received image, the edge cloud node needs to eliminate the stored image. In this embodiment, the central management and control device is responsible for providing a mirroring elimination strategy for edge cloud nodes. The central management and control device can generate a mirror elimination strategy, and deliver the elimination strategy to each edge cloud node; accordingly, each edge cloud node receives the mirror elimination strategy sent by the central control device, and performs processing on the images stored in it according to the elimination strategy Eliminate processing.

For edge cloud nodes, the image stored in the node can be eliminated regularly according to the above elimination strategy; or, whenever a new image needs to be received or acquired, it can be judged whether there is enough storage space in the node for storage If there is not enough storage space in the current node for the new image, the image stored in the node is eliminated according to the above elimination strategy, so as to store the new image. Taking the need to obtain the target image from the second edge cloud node as an example, before the edge management and control device in the first edge cloud node obtains the target image from the second edge cloud node, the edge management and control device in the first edge cloud node can determine the first edge cloud node. Whether there is enough storage space in an edge cloud node to store the target image; if there is not enough storage space in the first edge cloud node, the image stored in the first edge cloud node will be eliminated according to the elimination strategy, so that there is enough storage space Store the target image. Optionally, if there is enough storage space in the first edge cloud node, the image stored in the first edge cloud node may not be eliminated temporarily.

In some optional embodiments, the central management and control device may also receive a first request for adding a new image, the first request includes image construction information; and sends a construction request to the image construction device, the construction request includes image construction information for the image construction device Construct an image adapted to the edge cloud environment according to the image construction information; receive the newly constructed image returned by the image construction device and add it to the image library.

In some optional embodiments, the central management and control device may also receive a second request for adding a new image. The second request includes the image to be added; the image to be added is sent to the image building device, so that the image building device will The additional image is adapted to the edge cloud node environment; if the message that the image to be added is adapted to the edge cloud node environment returned from the image building device is received, the image to be added is added to the image library. If it receives a message from the mirror construction device that the image to be added is not compatible with the edge cloud node environment, notify the image submitting party to re-submit the newly added image after reconstruction, or notify the image submitting party to provide the re-submission of the image to be added. Construction method, so that the image construction device reconstructs the to-be-added image into an image adapted to the edge cloud node environment according to the reconstruction method. Optionally, the image submitting party may be the service demanding party, but is not limited to this.

In some optional embodiments, the central management and control device may also determine the image to be deleted, and delete the image to be deleted from the image library; and according to the image to be deleted, in the edge cloud where the maintained issued image and the issued image are located Matching is performed in the corresponding relationship of the nodes; if the third edge cloud node corresponding to the image to be deleted is matched in the corresponding relationship, a delete instruction is sent to the third edge cloud node, and the delete instruction carries information about the image to be deleted to indicate the third edge cloud node. The edge cloud node deletes the stored image to be deleted.

Optionally, the foregoing determination of the image to be deleted may adopt but is not limited to at least one of the following methods:

Count the usage frequency of each mirror in the mirror library, and use the mirror whose usage frequency is less than the frequency threshold as the mirror to be deleted;

Receive the mirror deletion request submitted by the user, and use the mirror deleted in the mirror deletion request as the mirror to be deleted.

It is explained here that when the network system includes edge management and control equipment, the central management and control equipment can specifically send a delete instruction to the edge management and control equipment; further, if the edge management and control equipment is deployed in the third edge cloud node, the central management and control equipment can specifically be Send the deletion instruction to the edge management and control device in the third edge cloud node. For the edge management and control device, it receives the delete instruction sent by the central control device, and the delete instruction carries the information of the image to be deleted; according to the information of the image to be deleted, judge whether the image to be deleted is stored in the third edge cloud node; if the image is stored To delete the image to be deleted.

When the central control device deletes the image to be deleted from the mirror library, and the edge cloud node storing the image to be deleted deletes the image to be deleted stored in it, the image deletion process is completed.

It should be noted that some processes described in the above embodiments and drawings include multiple operations appearing in a specific order, but it should be clearly understood that these operations may not be performed in the order in which they appear in this article. Or execute in parallel. The sequence numbers of operations, such as 21a, 22a, etc., are only used to distinguish different operations. The sequence number itself does not represent any execution order. In addition, these processes may include more or fewer operations, and these operations may be executed sequentially or in parallel. It should be noted that the descriptions of "first" and "second" in this article are used to distinguish different messages, devices, modules, etc., and do not represent a sequence, nor do they limit the "first" and "second" Are different types.

FIG. 3 is a schematic structural diagram of a central management and control device provided by an exemplary embodiment of this application. As shown in FIG. 3, the device includes: a memory 31 and a processor 32.

The memory 31 is used to store computer programs, and can be configured to store various other data to support operations on the central control device. Examples of these data include instructions, messages, pictures, videos, etc. used to operate any application or method on the central control device.

The processor 32 is coupled with the memory 31 and is configured to execute a computer program in the memory 31 to determine a target image that needs to be provided to the first edge cloud node, which is any edge cloud node in the network system ; Provide a target image for the first edge cloud node, so that the first edge cloud node uses the target image to provide cloud computing services.

In an optional embodiment, based on this, when the processor 32 provides the target application for the first edge cloud node, it is specifically configured to: according to the information of the target image, perform the following steps between the maintained issued image and the issued image Match in the corresponding relationship of the edge cloud node where it is located; if the second edge cloud node corresponding to the target image is matched in the corresponding relationship, the target image at the second edge cloud node is provided to the first edge cloud node; where The second edge cloud node is an edge cloud node in the network system.

In an optional embodiment, as shown in FIG. 3, the central management and control device further includes: a communication component 33. When the processor 32 provides the target image at the second edge cloud node to the first edge cloud node, it is specifically used to: provide information about the second edge cloud node and the target image to the edge management and control in the network system through the communication component 33 Device, so that the edge management and control device provides the target image at the second edge cloud node to the first edge cloud node.

Further, in the case where edge management and control devices are deployed in both the first edge cloud node and the second edge cloud node, the processor 32 is specifically configured to: provide the second edge cloud node and target mirror information to the second edge cloud node through the communication component 33 An edge management and control device in an edge cloud node for the edge management and control device in the first edge cloud node to obtain a target image from the second edge cloud node through the communication channel between the edge management and control device in the second edge cloud node and the edge management and control device in the second edge cloud node And provide it to the corresponding resource device in the first edge cloud node.

In an optional embodiment, the processor 32 is further configured to: determine the edge management and control device in the first edge cloud node and the edge management and control device in the second edge cloud node according to the information of the existing communication channel between the maintained edge management and control devices Whether there is a communication channel between edge management and control devices; if the judgment result is no, control the edge management and control device in the first edge cloud node to establish a communication channel with the edge management and control device in the second edge cloud node for the first edge cloud node The edge management and control device in obtains the target image from the second edge cloud node based on the communication channel.

In an optional embodiment, the processor 32 is further configured to: before providing the target image at the second edge cloud node to the first edge cloud node, determine the second edge cloud node according to the attributes of the second edge cloud node Whether it is suitable to provide the target image for the first edge cloud node; if the judgment result is yes, perform the operation of providing the target image at the second edge cloud node to the first edge cloud node.

Further, when determining whether the second edge cloud node is suitable for providing the target image for the first edge cloud node, the processor 32 specifically performs at least one of the following determining operations:

Determine whether the operator to which the second edge cloud node belongs is the same as the operator to which the first edge cloud node belongs;

Judging whether the distance between the second edge cloud node and the first edge cloud node is less than a set distance threshold;

Determine whether the available bandwidth of the second edge cloud node is greater than the set bandwidth threshold;

Determine whether the load of the second edge cloud node is less than a set load threshold;

If the result of at least one judgment operation is all yes, it is determined that the second edge cloud node is suitable for providing the target image for the first edge cloud node.

In an optional embodiment, the processor 32 is further configured to: before providing the target image at the second edge cloud node to the first edge cloud node, determine whether the second edge cloud node includes the first edge cloud node; If the judgment result is no, perform the operation of providing the target image at the second edge cloud node to the first edge cloud node; if the judgment result is yes, provide the target image information to the first edge cloud node through the communication component 33, For the first edge cloud node to read the target image stored therein. Wherein, in the case where the edge management and control device is deployed in the first edge cloud node, if the processor 32 determines that the correspondence between the maintained issued image and the edge cloud node where the issued image contains the target image, the target image can be communicated The component 33 provides the target image information to the edge management and control device in the first edge cloud node, and the edge management and control device in the first edge cloud node can obtain the target from the storage space of the image in the first edge cloud node according to the information of the target image. Mirroring, providing the target image to the corresponding resource device in the first edge cloud node, so that the corresponding resource device can create an instance that can provide cloud computing services according to the target image.

In an optional embodiment, the processor 32 is further configured to: receive a first request for adding a new image through the communication component 33, where the first request includes image construction information; and send a construction request to the image construction device, the construction request includes the image construction information , So that the mirror construction device constructs a mirror adapted to the edge cloud environment according to the mirror construction information; receives the newly constructed mirror returned by the mirror construction device and adds it to the mirror library.

In an optional embodiment, the processor 32 is further configured to: receive a second request for adding a new image through the communication component 33, the second request includes the image to be added; and send the image to be added to the image building device for The image construction device adapts the image to be added to the edge cloud node environment; if it receives a message from the image construction device that the image to be added is adapted to the edge cloud node environment, it adds the image to be added to the image library; If it receives a message from the mirror construction device that the image to be added is not compatible with the edge cloud node environment, notify the image submitting party to re-submit the newly added image after reconstruction, or notify the image submitting party to provide the re-submission of the image to be added. Construction method, so that the image construction device reconstructs the to-be-added image into an image adapted to the edge cloud node environment according to the reconstruction method.

In an optional embodiment, the processor 32 is further configured to: determine the image to be deleted, delete the image to be deleted from the mirror library; and, according to the image to be deleted, locate the maintained issued image and the issued image. Matching is performed in the corresponding relationship of the edge cloud nodes; if the third edge cloud node corresponding to the image to be deleted is matched in the corresponding relationship, a deletion instruction is sent to the third edge cloud node through the communication component 33, and the deletion instruction carries the image to be deleted Information to instruct the third edge cloud node to delete the image to be deleted stored therein.

Further, the processor 32 is specifically configured to perform at least one of the following operations when determining the image to be deleted:

In an optional embodiment, the processor 32 is further configured to: generate a elimination strategy for the mirror image, and deliver the elimination strategy to each edge cloud node in the network system through the communication component 33, so that each edge cloud node can make a corresponding decision according to the elimination strategy. The locally stored image is eliminated. Among them, when the network system includes edge management and control equipment, the processor 3 can issue the elimination strategy to the edge management and control equipment through the communication component 33, and the edge management and control equipment eliminates the images stored in each edge cloud node according to the elimination strategy. deal with. Further, in the case where edge management and control equipment is deployed in each edge cloud node, the processor 3 can issue the elimination strategy to the edge management and control equipment in each edge cloud node through the communication component 33, and the The edge management and control device eliminates the image stored in its edge cloud node according to the elimination strategy.

Furthermore, as shown in FIG. 3, the central management and control device further includes: a display 34, a power supply component 35, an audio component 36 and other components. Only some of the components are schematically shown in FIG. 3, which does not mean that the central control equipment only includes the components shown in FIG. In addition, the components in the dashed box in Figure 3 are optional components, which may be determined by the implementation of the central control equipment. If the central control device is a server type device, optionally, the display 34 and audio component 36 may not be included; if the central control device is a terminal device type device, it may optionally include the display 34 and the audio component 36.

Correspondingly, an embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by one or more processors, the one or more processors can implement the above method in the above-mentioned method embodiments. Steps or operations performed by the equipment.

FIG. 4 is a schematic structural diagram of an edge management and control device provided by an exemplary embodiment of this application. As shown in FIG. 4, the device includes: a memory 41, a processor 42 and a communication component 43.

The communication component 43 is used to receive the information of the second edge cloud node issued by the central management and control device and the information of the target image that needs to be provided to the first edge cloud node; wherein the first edge cloud node and the second edge cloud node are the center Control equipment and edge cloud nodes in the network system to which the edge control equipment belongs.

The memory 41 is used to store computer programs, and can be configured to store various other data to support operations on edge management and control devices. Examples of these data include instructions, messages, pictures, videos, etc. for any application or method operating on edge control devices.

The processor 42 is coupled with the memory 41 and is configured to execute a computer program in the memory 41 to obtain the target image from the second edge cloud node according to the information of the second edge cloud node and the target image.

In an optional embodiment, the processor 42 is further configured to: receive a deletion instruction sent by the central management and control device through the communication component 43, the deletion instruction carries information about the image to be deleted; and according to the information about the image to be deleted, the first edge cloud node The to-be-deleted image stored in the file is deleted.

In an optional embodiment, the processor 42 is further configured to: receive the elimination strategy of the image sent by the central management and control device through the communication component 43; and perform elimination processing on the image stored in the first edge cloud node according to the elimination strategy.

Further, when the processor 42 performs elimination processing on the image stored in the first edge cloud node according to the elimination strategy, it is specifically used to: before obtaining the target image from the second edge cloud node, determine whether there is any image in the first edge cloud node. Enough storage space to store the target image; if there is not enough storage space in the first edge cloud node, the image stored in the first edge cloud node is eliminated according to the elimination strategy, so that there is enough storage space to store the target image.

Further, as shown in FIG. 4, the edge management and control device further includes: a display 44, a power supply component 45, an audio component 46 and other components. Only some components are schematically shown in FIG. 4, which does not mean that the edge management and control device only includes the components shown in FIG. 4. In addition, the components in the dashed box in FIG. 4 are optional components, which may be determined by the implementation of the edge control equipment. If the edge management and control device is a server type device, optionally, the display 44 and the audio component 46 may not be included; if the edge management and control device is a terminal device type, it may optionally include the display 44 and the audio component 46.

Correspondingly, an embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by one or more processors, the one or more processors can implement the above method and the embodiments can be controlled by the edge. Steps or operations performed by the equipment.

The memory in Figures 3 and 4 above can be implemented by any type of volatile or non-volatile storage devices or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory ( EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

The communication components in Figures 3 and 4 are configured to facilitate wired or wireless communication between the device where the communication component is located and other devices. The device where the communication component is located can access a wireless network based on communication standards, such as WiFi, 2G or 3G, or a combination of them. In an exemplary embodiment, the communication component receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component may further include a near field communication (NFC) module, radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, and Bluetooth (BT) technology Wait.

The display in FIGS. 3 and 4 described above includes a screen, and the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.

The power components in Figures 3 and 4 above provide power for various components of the equipment where the power components are located. The power supply component may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device where the power supply component is located.

The audio components in Figures 3 and 4 described above may be configured to output and/or input audio signals. For example, the audio component includes a microphone (MIC). When the device where the audio component is located is in an operating mode, such as call mode, recording mode, and voice recognition mode, the microphone is configured to receive external audio signals. The received audio signal can be further stored in a memory or sent via a communication component. In some embodiments, the audio component further includes a speaker for outputting audio signals.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, systems, or computer program products. Therefore, the present invention may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present invention may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The present invention is described with reference to flowcharts and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated It is a device that realizes the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device. The device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment. The instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.

In a typical configuration, the computing device includes one or more processors (CPU), input/output interfaces, network interfaces, and memory.

The memory may include non-permanent memory in computer readable media, random access memory (RAM) and/or non-volatile memory, such as read-only memory (ROM) or flash memory (flash RAM). Memory is an example of computer readable media.

Computer-readable media include permanent and non-permanent, removable and non-removable media, and information storage can be realized by any method or technology. The information can be computer-readable instructions, data structures, program modules, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical storage, Magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media can be used to store information that can be accessed by computing devices. According to the definition in this article, computer-readable media does not include transitory media, such as modulated data signals and carrier waves.

It should also be noted that the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, product or equipment including a series of elements not only includes those elements, but also includes Other elements that are not explicitly listed, or include elements inherent to this process, method, commodity, or equipment. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, commodity, or equipment that includes the element.

The above descriptions are only examples of this application and are not used to limit this application. For those skilled in the art, this application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the scope of the claims of this application.

Claims

An image management method, characterized in that it comprises:

Determining the target image that needs to be provided to the first edge cloud node, where the first edge cloud node is any edge cloud node in the network system;

The target image is provided for the first edge cloud node, so that the first edge cloud node uses the target image to provide cloud computing services.
The method according to claim 1, wherein providing the target image for the first edge cloud node comprises:

According to the information of the target image, matching is performed in the correspondence between the maintained issued image and the edge cloud node where the issued image is located;

If the second edge cloud node corresponding to the target image is matched in the correspondence relationship, the target image at the second edge cloud node is provided to the first edge cloud node; wherein, the The second edge cloud node is an edge cloud node in the network system.
The method according to claim 2, wherein providing the target image at the second edge cloud node to the first edge cloud node comprises:

Provide information about the second edge cloud node and the target image to the edge management and control device in the network system, so that the edge management and control device provides the target image at the second edge cloud node to The corresponding resource device in the first edge cloud node.
The method according to claim 3, wherein the information of the second edge cloud node and the target image is provided to an edge management and control device in the network system, so that the edge management and control device can Providing the target image at the second edge cloud node to the corresponding resource device in the first edge cloud node includes:

The information of the second edge cloud node and the target image is provided to the edge management and control device in the first edge cloud node, so that the edge management and control device in the first edge cloud node communicates with the first edge cloud node. The communication channel between the edge management and control devices in the second edge cloud node obtains the target image from the second edge cloud node and provides it to the corresponding resource device in the first edge cloud node.
The method according to claim 2, wherein before providing the target image at the second edge cloud node to the first edge cloud node, the method further comprises:

Judging whether the second edge cloud node is suitable for providing the target image for the first edge cloud node according to the attribute of the second edge cloud node;

If the judgment result is yes, perform an operation of providing the target image at the second edge cloud node to the first edge cloud node.
The method according to claim 5, wherein determining whether the second edge cloud node is suitable for providing the target image for the first edge cloud node according to the attribute of the second edge cloud node comprises the following At least one way of judgment:

Determining whether the operator to which the second edge cloud node belongs is the same as the operator to which the first edge cloud node belongs;

Determine whether the distance between the second edge cloud node and the first edge cloud node is less than a set distance threshold;

Judging whether the available bandwidth of the second edge cloud node is greater than a set bandwidth threshold;

Determine whether the load of the second edge cloud node is less than a set load threshold;

If the result of the at least one judgment method is all yes, it is determined that the second edge cloud node is suitable for providing the target image for the first edge cloud node.
The method according to claim 2, wherein before providing the target image at the second edge cloud node to the first edge cloud node, the method further comprises:

Determining whether the maintained correspondence between the issued image and the edge cloud node where the issued image includes the first edge cloud node;

If the judgment result is no, perform an operation of providing the target image at the second edge cloud node to the first edge cloud node.
The method according to claim 7, further comprising:

If the judgment result is yes, provide the information of the target image to the first edge cloud node, and use the first edge cloud node to read the target image stored therein.
The method according to any one of claims 1-8, further comprising:

Receiving a first request for adding a new mirror, where the first request includes mirror construction information;

Sending a construction request to an image construction device, the construction request including the image construction information, so that the image construction device can construct an image adapted to the edge cloud environment according to the image construction information;

Receive the newly constructed image returned by the image construction device and add it to the image library.
The method according to any one of claims 1-8, further comprising:

Receiving a second request for adding a new image, where the second request includes a new image to be added;

Sending the image to be added to the image construction device, so that the image construction device can adapt the image to be added to the edge cloud node environment;

If a message that the image to be added is adapted to the edge cloud node environment is received from the image construction device, the image to be added is added to the image library.
The method according to claim 10, further comprising:

If it receives a message from the image construction device that the image to be added is not compatible with the edge cloud node environment, notify the image submitting party to reconstruct and resubmit the image to be added, or notify the image submitting party to provide all The reconstruction method of the image to be added is used for the image construction device to reconstruct the image to be added into an image adapted to the environment of the edge cloud node according to the reconstruction method.
The method according to any one of claims 1-8, further comprising:

Determine the mirror to be deleted, and delete the mirror to be deleted from the mirror library; and

According to the image to be deleted, matching is performed in the correspondence between the maintained issued image and the edge cloud node where the issued image is located;

If a third edge cloud node corresponding to the image to be deleted is matched in the correspondence, a delete instruction is sent to the third edge cloud node, where the delete instruction carries information about the image to be deleted, and Instruct the third edge cloud node to delete the image to be deleted stored therein.
The method according to claim 12, wherein the determining the image to be deleted includes at least one of the following methods:

Count the usage frequency of each mirror in the mirror library, and use a mirror whose usage frequency is less than a frequency threshold as the mirror to be deleted;

Receive a mirror deletion request submitted by a user, and use the mirror that the mirror deletion request instructs to delete as the mirror to be deleted.
The method according to any one of claims 1-8, further comprising:

The elimination strategy of the image is generated, and the elimination policy is issued to each edge cloud node in the network system, so that each edge cloud node performs elimination processing on the locally stored image according to the elimination strategy.
An image management method, characterized in that it comprises:

Receiving the information of the second edge cloud node issued by the central management and control device and the information of the target image that needs to be provided to the first edge cloud node;

Acquire the target image from the second edge cloud node according to the information of the second edge cloud node and the target image.
The method according to claim 15, further comprising:

Receiving a delete instruction sent by the central management and control device, where the delete instruction carries information about the image to be deleted;

According to the information of the image to be deleted, the image to be deleted stored in the first edge cloud node is deleted.
The method according to claim 15 or 16, further comprising:

Receiving the mirroring elimination strategy sent by the central management and control device;

According to the elimination strategy, the image stored in the first edge cloud node is eliminated.
The method according to claim 17, wherein, according to the elimination strategy, eliminating the image stored in the first edge cloud node comprises:

Before acquiring the target image from the second edge cloud node, determine whether there is enough storage space in the first edge cloud node to store the target image;

If there is not enough storage space locally, the image stored in the first edge cloud node is eliminated according to the elimination strategy, so that there is enough storage space to store the target image.
A network system, characterized by comprising: a central management and control device, and at least one edge cloud node;

The central management and control device is used to determine the target image that needs to be provided to the first edge cloud node, and to provide the target image for the first edge cloud node, so that the first edge cloud node can use the target image to provide Cloud computing service; wherein, the first edge cloud node is any edge cloud node in the network system.
The network system according to claim 19, wherein the central management and control device is specifically used for:

According to the information of the target image, matching is performed in the correspondence between the maintained issued image and the edge cloud node where the issued image is located;

If a second edge cloud node corresponding to the target image is matched in the correspondence relationship, the target image at the second edge cloud node is provided to the first edge cloud node; the second The edge cloud node is an edge cloud node in the network system.
The network system according to claim 20, further comprising: edge management and control equipment;

The central management and control device is specifically configured to provide the edge management and control device with information about the second edge cloud node and the target image;

The edge management and control device is configured to provide the target image at the second edge cloud node to the corresponding one in the first edge cloud node according to the information of the second edge cloud node and the target image A resource device for the corresponding resource device to provide cloud computing services according to the target image.
The network system according to any one of claims 19-21, further comprising: a mirror image construction device;

The image construction device is configured to receive a construction request sent by the central management and control device, construct an image adapted to the edge cloud environment according to the image construction information contained in the construction request, and return the constructed image to the central management and control device Of the mirror.
The network system according to claim 22, wherein the image construction device is deployed in one or more edge cloud nodes.
A central management and control device, which is characterized by comprising: a memory and a processor;

The memory is configured to store a computer program, and when the computer program is executed by the processor, the processor is caused to implement the steps in the method of any one of claims 1-14.
A computer-readable storage medium storing a computer program, wherein when the computer program is executed by one or more processors, the one or more processors are caused to implement any one of claims 1-14 The steps in the method.
An edge management and control device, which is characterized by comprising: a memory and a processor;

The memory is configured to store a computer program, which when the computer program is executed by the processor, causes the processor to implement the steps in the method of any one of claims 15-18.
A computer-readable storage medium storing a computer program, wherein when the computer program is executed by one or more processors, the one or more processors are caused to implement any one of claims 15-18 The steps in the method.