CN114116066B - Cloud platform cluster control method, system and storage medium - Google Patents

Cloud platform cluster control method, system and storage medium Download PDF

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CN114116066B
CN114116066B CN202111441670.3A CN202111441670A CN114116066B CN 114116066 B CN114116066 B CN 114116066B CN 202111441670 A CN202111441670 A CN 202111441670A CN 114116066 B CN114116066 B CN 114116066B
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cluster
deployment
cloud platform
host
task
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CN114116066A (en
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付丙艮
孙利杰
杨涛
刘文清
陈松政
颜跃进
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Hunan Qilin Xin'an Technology Co ltd
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Hunan Qilin Xin'an Technology Co ltd
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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/44Arrangements for executing specific programs
    • G06F9/445Program loading or initiating
    • G06F9/44505Configuring for program initiating, e.g. using registry, configuration files
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F9/00Arrangements for program control, e.g. control units
    • G06F9/06Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
    • G06F9/46Multiprogramming arrangements
    • G06F9/48Program initiating; Program switching, e.g. by interrupt
    • G06F9/4806Task transfer initiation or dispatching
    • G06F9/4843Task transfer initiation or dispatching by program, e.g. task dispatcher, supervisor, operating system

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  • Software Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Retrieval, Db Structures And Fs Structures Therefor (AREA)

Abstract

The embodiment of the invention discloses a cloud platform cluster control method, a cloud platform cluster control system and a storage medium, wherein the method comprises the steps of establishing mutual trust with a cluster manager in a cloud platform; receiving a deployment task issued by the management machine, wherein the deployment task is pre-generated by the management machine according to a task arrangement mode; and deploying the corresponding application service according to the deployment task, wherein the application service is used for starting the cluster service. According to the cloud desktop cluster deployment method and system, the deployment application service is distributed to the nodes as tasks to be executed in parallel, so that the cloud desktop cluster deployment efficiency is improved, and each node in the cluster and the cluster itself can be modified after the deployment is completed, so that the deployment flexibility is improved, and the subsequent cluster operation and maintenance work is reduced.

Description

Cloud platform cluster control method, system and storage medium
Technical Field
The present invention relates to the field of cloud platforms, and in particular, to a cloud platform cluster control method, system, and storage medium.
Background
With the continuous development of cloud computing technology, the cloud computing service form of IaaS (infrastructure as a service) is rapidly developed, and more enterprises and research institutions start to build a cloud computing platform. The cloud computing platform is popular in various industries such as enterprises, government institutions and the like in recent years because of the characteristics of reducing cost, improving operation and maintenance efficiency and the like for users, and has also been rapidly developed. As cloud platform clusters get larger, deploying cloud platform clusters is a very tedious matter. Deploying a set of cloud platform clusters involves the installation and configuration of a plurality of related software and the processing of the dependency relationship among components; the cloud platform cluster environment is very difficult to manually deploy, and is very easy to make mistakes.
Currently, a cluster automation deployment tool is known as OSCAR, rocks, kadeploy < 2 >, and the deployment efficiency can be greatly improved by using the tool. The OSCAR tool and the Rocks tool aim at isomorphic systems, a large number of special software packages are integrated, the deployment process needs to be manually participated, and the deployment method is not suitable for the deployment of large clusters; the Kadeploy tool provides a basic model of cluster deployment and also supports personalized modification, but is directed to grid cluster systems. None of these tools is well suited for deployment of cloud platform clusters. In recent years, some companies have introduced automatic deployment tools for self-owned cloud platforms, such as Fuel introduced by Mirabtis, crowbar introduced by Dell, etc., which are more from the standpoint of deployment stability and accuracy, and less from the standpoint of deployment flexibility and efficiency.
Disclosure of Invention
In view of the above, the present application provides a cloud platform cluster control method, including:
establishing mutual trust with a cluster manager in the cloud platform;
Receiving a deployment task issued by the management machine, wherein the deployment task is pre-generated by the management machine according to a task arrangement mode;
and deploying the corresponding application service according to the deployment task, wherein the application service is used for starting the cluster service.
Further, the deployment task is obtained in advance by the supervisor according to a task scheduling mode, and the deployment task comprises the following steps:
Sequencing the deployment tasks according to the dependency relationship among the deployment tasks and writing the deployment tasks into a configuration file, so that each cluster host in the cloud platform determines the deployment tasks to be executed according to the roles of the cluster host and the configuration file;
Wherein the roles are determined according to the functions of the cluster hosts.
Further, the establishing mutual trust between the cluster management machine and the cloud platform comprises:
and copying the SSH public key of the supervisor to a storage directory appointed by the supervisor so as to realize the password-free login of the supervisor to the supervisor.
Further, after the deploying the corresponding application service, the method further includes:
storing the deployment information of the host into a cluster database so as to enable all hosts after the cluster service is started to carry out information sharing and/or cluster system maintenance;
And pulling up the deployed application service through the script to finish the startup of the cluster service.
Further, after the cluster service is started, the method further comprises:
reporting SSH public key information of the cluster hosts to a public key file in a timing task mode, wherein the SSH public key information is used for secret-free login among the cluster hosts;
and the public key file is stored in a storage space which can be accessed by all cluster hosts in the cloud platform.
Further, the deployment tasks include inter-node system time synchronization, domain name information synchronization, rabbitmq cluster configuration, mysql cluster configuration, PKL file configuration, and KSVD service restart.
Further, the present application also provides a cloud platform cluster control system, including: the management machine and the at least one cluster host;
The management machine is used for establishing mutual trust with each cluster host in the cloud platform;
the management machine is also used for generating a deployment task in a task arrangement mode and issuing the deployment task to the corresponding cluster host;
The cluster host is used for receiving the deployment task issued by the management machine and deploying the corresponding application service according to the deployment task, and the application service is used for starting the cluster service.
Further, the supervisor is further configured to select an ac host from all the cluster hosts running CHRONYD processes to time synchronize with an external time synchronization server, so that other cluster hosts time synchronize with the ac host through chronyc tools.
Further, the manager is configured to establish mutual trust with the cluster hosts, and includes:
and the manager generates an SSH public key, and each cluster host copies the SSH public key to a storage directory appointed by the cluster host so as to realize the password-free login with the manager.
Further, the present application also provides a readable storage medium storing a computer program, where the computer program executes the cloud platform cluster control method according to any one of the above embodiments when running on a processor.
The embodiment of the invention discloses a cloud platform cluster control method, a cloud platform cluster control system and a storage medium, wherein the method comprises the steps of establishing mutual trust with a cluster manager in a cloud platform; receiving a deployment task issued by the management machine, wherein the deployment task is pre-generated by the management machine according to a task arrangement mode; and deploying the corresponding application service according to the deployment task, wherein the application service is used for starting the cluster service. According to the cloud desktop cluster deployment method and system, the deployment application service is distributed to the nodes as tasks to be executed in parallel, so that the cloud desktop cluster deployment efficiency is improved, and each node in the cluster and the cluster itself can be modified after the deployment is completed, so that the deployment flexibility is improved, and the subsequent cluster operation and maintenance work is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are required for the embodiments will be briefly described, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope of the present invention. Like elements are numbered alike in the various figures.
Fig. 1 shows a flow diagram of a cloud platform cluster control method according to an embodiment of the present application;
Fig. 2 shows a schematic structural diagram of a cloud platform cluster system according to an embodiment of the present application;
fig. 3 is a schematic diagram of a cloud platform cluster time synchronization method according to an embodiment of the present application.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.
The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by a person skilled in the art without making any inventive effort, are intended to be within the scope of the present invention.
The terms "comprises," "comprising," "including," or any other variation thereof, are intended to cover a specific feature, number, step, operation, element, component, or combination of the foregoing, which may be used in various embodiments of the present invention, and are not intended to first exclude the presence of or increase the likelihood of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing.
Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which various embodiments of the invention belong. The terms (such as those defined in commonly used dictionaries) will be interpreted as having a meaning that is the same as the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein in connection with the various embodiments of the invention.
Example 1
The embodiment provides a cloud platform cluster control method, as shown in a flowchart of fig. 1.
Step S100, establishing mutual trust with a cluster management host in a cloud platform;
In this embodiment, in a cloud platform cluster, there may be multiple cluster hosts and a manager for managing the hosts, for example, if the cloud platform has 4 hosts, one of the hosts is the manager, and the other three hosts are the cluster hosts for providing cloud services, at the beginning of cluster deployment, the manager needs to establish mutual trust between the management hosts and the cluster hosts in order to be able to control and issue tasks to the cluster hosts, and specifically, SSH (Secure Shel security protocol) may be used to implement secure login-free.
Firstly, each cluster host and each manager generate respective SSH public keys and secret keys, then a sh-copy-id tool is utilized on the manager to establish a secret login-free channel for deploying the manager to other cluster hosts, or management public keys are directly sent to other cluster hosts, and then the public keys are copied to a designated file path, so that the manager can avoid secret login to the cluster hosts, and mutual trust between the manager and the cluster hosts is realized.
In addition, after the clusters are operated, mutual trust among all the cluster hosts needs to be realized, specifically, each cluster host can report own SSH public key information to a public key file in a timing task mode, the public key file is stored in a storage space which can be accessed by all the cluster hosts, such as shared storage or distributed storage, and thus, for each host, the public key can be obtained by accessing the storage space to other hosts. The timing task can be understood as that all cluster hosts can periodically upload their own public keys so as to ensure that the public keys in the public storage space are up to date and ensure that other hosts can avoid logging in.
Step S200, receiving a deployment task issued by the management machine, wherein the deployment task is pre-generated by the management machine according to a task arrangement mode;
after mutual trust is realized, the cluster hosts can receive deployment tasks from the manager, wherein the tasks are transmitted to each cluster host in parallel by the manager in a task arrangement mode.
Specifically, the present embodiment schedules tasks through yaml configuration files, and these scheduled deployment tasks are used to deploy application services on each host, such as inter-node system time synchronization, domain name information synchronization, rabbitmq cluster configuration, mysql cluster configuration, PKL file configuration, and KSVD service restart, which are cluster-related services. The above is only the task scheduled in this embodiment, and the scheduled task can be increased or decreased according to the service condition when the task is specifically implemented.
Firstly, according to the dependency relationship among the deployment tasks, the deployment tasks can be sequenced to obtain the execution sequence of the tasks, and then the tasks are written into the yaml configuration file according to the sequence.
In addition to tasks, information of the host is also configured in the configuration file, and the information includes data of roles, ips, hostnames and the like of the host.
For example, a 3-node cluster deployment yaml configuration file, which includes the various information and configuration variables, such as the hosts variable is composed of variables composed of management IPs of hosts to be added into the cluster, each IP variable is composed of variables such as IPs, domain names (hostnames), node roles (server_role), shared storage mount information and the like corresponding to the hosts, the variables are increased or decreased according to service conditions, and the subvariables recorded under the IP variables can only be transferred to tasks executed on the corresponding hosts for use; the sub-variables defined under the vars variable belong to global variables, and all tasks executed on the host can use the variables to increase or decrease the variables according to the service conditions.
The configuration file may be called by a system command, or may be called by a shell script, which is described in this embodiment by a method called by the shell script, where the manager executes the task scheduling described above, and other cluster hosts execute the deployed task, and first, the script to be executed on the manager is copied to a host specifically needing to execute the script remotely, and the host receiving the script may execute the script, so that execution of the deployed task may begin.
Step S300, corresponding application services are deployed according to the deployment task, and the application services are used for starting cluster services.
After accepting the configuration file and the script, the deployment task may be executed through the script, in this embodiment, not every cluster host may deploy all the applications exemplified above, but rather, a targeted deployment, such as configuring, in the configuration file, an attribute of a role to be allocated to each cluster computer node according to a function of the computer node, for example, the computer node is a management node, so that his role is cm_vdi, so that he is allowed to configure a database service for managing the whole cluster, and if his role is vdi_only, only a cache mirror service is deployed to implement quick start of the virtual machine, and the database service is not deployed because it is inconsistent with the role.
When the host in the cluster deploys the application services, the whole cluster can be started by pulling up the services, specifically, the services can be pulled up by a service starting script, naturally, the deployed services are different when the task is arranged according to different roles of each host, and the pulled up services are different.
Before the cluster is started, the cluster hosts also store deployment information into a cluster database so as to enable all hosts after the cluster service is started to share information and/or maintain a cluster system.
And pulling up the deployed application service through the script to finish the cluster service starting, wherein the deployment information comprises information such as domain names, ips, roles, cluster states and the like of hosts in the cluster, the information is written into a database, the subsequent cluster display and management are facilitated, a manager can manage the cluster through the database, any host in the cluster can serve as a management node to perform cluster management after starting, and a certain host can enter and exit the cluster, so that the flexibility is greatly improved.
According to the cloud desktop cluster deployment method and device, the deployment application service is distributed to the nodes as tasks to be executed in parallel, so that the cloud desktop cluster deployment efficiency is improved, and meanwhile, after the deployment is completed, each node in the cluster and the cluster itself can be modified, so that the flexibility of deployment is improved, and the subsequent cluster operation and maintenance work is reduced.
Example 2
Referring to fig. 2, the present application further provides a cloud platform cluster control system.
The system illustratively includes a supervisor and at least one clustered host as a computer node forming a cloud platform.
The management machine is used for establishing mutual trust with each cluster host in the cloud platform; in particular, in the above embodiment, step S100 is not described herein.
The management machine is also used for generating a deployment task in a task arrangement mode and issuing the deployment task to the corresponding cluster host; in particular, in the above embodiment, step S200 is not described herein.
The cluster host is used for receiving the deployment task issued by the management machine and deploying the corresponding application service according to the deployment task, and the application service is used for starting the cluster service. In particular, in the above embodiment, step S300 is not described herein.
Further, the supervisor is further configured to select an ac host from all the cluster hosts running CHRONYD processes to time synchronize with an external time synchronization server, so that other cluster hosts time synchronize with the ac host through chronyc tools.
Specifically, in connection with FIG. 3, CHRONYD processes run within each host in the cluster. In order to perform time synchronization with an external time server, the management machine selects a host machine to perform communication synchronization with the external time synchronization server, and in this embodiment, the selected host machine is the management machine itself, and may also be the first host machine, the second host machine, or even the nth host machine.
When the manager synchronizes, the manager sends a request to an external time server through chronyc to perform synchronization, and after the manager completes synchronization, the manager performs time synchronization with other cluster hosts through chronyd service, and the other cluster hosts realize synchronization operation through chronyc tools, so that the time synchronization of the whole cluster is finally completed.
It will be appreciated that the corresponding steps in the above embodiment correspond to the functions of the supervisor and each cluster host in this embodiment, and the options in the above embodiment are equally applicable to this embodiment, so the description will not be repeated here.
An embodiment of the present application further provides a storage medium storing a computer program, where the computer program executes the cloud platform cluster control method according to any one of the above embodiments when running on a processor.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. The apparatus embodiments described above are merely illustrative, for example, of the flow diagrams and block diagrams in the figures, which illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules or units in various embodiments of the invention may be integrated together to form a single part, or the modules may exist alone, or two or more modules may be integrated to form a single part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a smart phone, a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention.

Claims (9)

1. The cloud platform cluster control method is characterized by comprising the following steps of:
establishing mutual trust with a cluster manager in the cloud platform;
Receiving deployment tasks issued in parallel from the management machine, wherein the deployment tasks are pre-generated by the management machine according to a task arrangement mode;
According to the deployment task, deploying a corresponding application service, wherein the application service is used for starting a cluster service;
pulling up the deployed application service through a script to finish the starting of the cluster service, wherein the service deployed when the task is scheduled is different according to different roles of the host computers in each cluster, and the application service pulled up by the script is also different;
The deployment task is pre-generated by the management machine according to a task arrangement mode, and comprises the following steps:
Sequencing each deployment task according to the dependency relationship among the deployment tasks to obtain the execution sequence of the deployment tasks, sequencing each deployment task according to the execution sequence, and writing the sequencing each deployment task into a configuration file so that a host in each cluster in the cloud platform determines the deployment task to be executed according to the role of the host and the configuration file;
the configuration file contains roles of the hosts, and the roles are determined according to functions of the hosts in the cluster.
2. The cloud platform cluster control method according to claim 1, wherein establishing mutual trust with a cluster manager in the cloud platform comprises:
and copying the SSH public key of the supervisor to a storage directory appointed by the supervisor so as to realize the password-free login of the supervisor to the supervisor.
3. The cloud platform cluster control method according to claim 1, further comprising, after the deploying the corresponding application service:
And storing the deployment information of the host computers into a cluster database so as to enable all the host computers after the cluster service is started to carry out information sharing and/or cluster system maintenance.
4. The cloud platform cluster control method according to claim 3, wherein after the cluster service is started, the method further comprises:
Reporting SSH public key information of the self to a public key file in a timing task mode, so as to be used for secret-free login between hosts in each cluster;
The public key file is stored in a storage space which can be accessed by a host in all clusters in the cloud platform.
5. The cloud platform cluster control method of claim 1, wherein the deployment tasks include inter-node system time synchronization, domain name information synchronization, rabbitmq cluster configuration, mysql cluster configuration, PKL file configuration, and KSVD service restart.
6. A cloud platform cluster control system, comprising: the management machine and the at least one cluster host;
The management machine is used for establishing mutual trust with each cluster host in the cloud platform;
The management machine is also used for generating deployment tasks in a task arrangement mode and transmitting the deployment tasks to the corresponding cluster hosts in parallel;
The cluster host is used for receiving the deployment tasks issued in parallel from the manager and deploying corresponding application services according to the deployment tasks, and the application services are used for starting the cluster services;
Sequencing each deployment task according to the dependency relationship among the deployment tasks to obtain the execution sequence of the deployment tasks, sequencing each deployment task according to the execution sequence, and writing the sequencing each deployment task into a configuration file so that a host in each cluster in the cloud platform determines the deployment task to be executed according to the role of the host and the configuration file;
The configuration file contains the role of the host, and the role is determined according to the functions of the hosts in the cluster;
And pulling up the deployed application service through the script to finish the starting of the cluster service, wherein the service deployed during the task arrangement is different according to different roles of the host computers in each cluster, and the application service pulled up by the script is also different.
7. The cloud platform cluster control system of claim 6, wherein said supervisor is further configured to select an ac host from all of said cluster hosts running CHRONYD processes to time synchronize with an external time synchronization server such that other of said cluster hosts are time synchronized with said ac host by chronyc means.
8. The cloud platform cluster control system of claim 6, wherein said supervisor is configured to establish mutual trust with said cluster hosts, comprising:
and the manager generates an SSH public key, and each cluster host copies the SSH public key to a storage directory appointed by the cluster host so as to realize the password-free login with the manager.
9. A readable storage medium, characterized in that it stores a computer program which, when run on a processor, performs the cloud platform cluster control method of any of claims 1 to 5.
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