CN111966465B - Method, system, equipment and medium for modifying host configuration parameters in real time - Google Patents
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
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- G06F8/71—Version control; Configuration management
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- G—PHYSICS
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/455—Emulation; Interpretation; Software simulation, e.g. virtualisation or emulation of application or operating system execution engines
- G06F9/45533—Hypervisors; Virtual machine monitors
- G06F9/45558—Hypervisor-specific management and integration aspects
- G06F2009/45595—Network integration; Enabling network access in virtual machine instances
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Abstract
The invention discloses a method, a system, equipment and a storage medium for modifying configuration parameters of a host in real time, wherein the method comprises the following steps: creating a scheduling unit in the K8S cluster, and associating the directory of the host with the scheduling unit to eliminate logical isolation of the host and the scheduling unit; writing the service application program into the dispatching unit and monitoring the configuration file of the catalog; responsive to receiving a command to modify a host configuration parameter, writing the command into a configuration file of the directory by the service application; and in response to detecting a change in the configuration file of the directory, modifying the configuration parameters of the host based on the change. The invention realizes the association between the pod and the host machine by utilizing the volume of kubernetes, solves the logical isolation between the host machine and the application, and can realize the real-time modification of the configuration parameters of the host machine.
Description
Technical Field
The present invention relates to the field of containers, and more particularly, to a method, system, computer device, and readable medium for modifying configuration parameters of a host in real time.
Background
With the progressive complexity of application system functions, more and more services need to be provided, and the traditional single service mode has great challenges in terms of new function development, service maintenance and the like. Therefore, some services with single functions or strong relevance need to be extracted from the whole to form independent services, which gradually evolves into a micro-service architecture. In the micro-service architecture, decoupling is realized among the services, the services are independently operated on each node, the service requests are carried out in a service calling mode, a certain single service is down, other service is not influenced, and the usability of the system is greatly improved. A huge system often consists of tens or hundreds of micro services, and the deployment of these micro services on a traditional virtual machine faces the problems of difficult operation and maintenance and slow deployment, so in recent years, the containerization technology is being widely applied in micro service architecture. Kubernetes (K8S) is a relatively common containerized application deployment tool. Micro-services between Pod (dispatch unit) and Pod, pod and host are logically isolated from each other.
In a very common case, the operations of some modified hosts, such as NTP (network time protocol ) servers configuring the hosts, are provided externally through the containerized services provided by kubernetes. Because the service runs in the pod and there is logic isolation between the service and the host, direct modification of the host configuration file cannot be realized. While it is generally common practice to implement modification of host configuration files using remote login commands such as ssh, this approach presents significant problems. In a formal production environment, the background login information of the host is only kept by operation and maintenance personnel and is opaque to the user, so that the operation can be realized only by contacting the operation and maintenance personnel, and thus, the complete function cannot be provided for the outside.
Disclosure of Invention
Accordingly, an objective of the embodiments of the present invention is to provide a method, a system, a computer device and a computer-readable storage medium for modifying configuration parameters of a host in real time, which solve the logical isolation between the host and an application by using the volumes of kubernetes to achieve the association between the pod and the host, so as to modify the configuration parameters of the host in real time.
Based on the above objects, an aspect of the embodiments of the present invention provides a method for modifying configuration parameters of a host in real time, including the following steps: creating a scheduling unit in a K8S cluster, and associating a directory of a host with the scheduling unit to eliminate logical isolation of the host from the scheduling unit; writing a service application program into the scheduling unit and monitoring a configuration file of the catalog; responsive to receiving a command to modify a host configuration parameter, writing the command into a configuration file of the directory by the service application; and in response to detecting a change in the configuration file of the directory, modifying configuration parameters of the host based on the change.
In some implementations, the associating the directory of hosts with the schedule unit to eliminate logical isolation of the hosts from the schedule unit includes: and mounting the file directory of the file system of the host machine to the scheduling unit.
In some embodiments, the writing, by the service application, the command into the configuration file of the directory includes: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog.
In some embodiments, the writing the splice command into the configuration file of the directory includes: and writing the splicing command into a configuration file of the catalog after converting the format.
In some implementations, the modifying the configuration parameters of the host based on the change includes: and reading the configuration file of the catalog, acquiring a splicing command in the configuration file and modifying the configuration file of the host machine based on the splicing command.
In some embodiments, the obtaining splice commands in the configuration file and modifying the configuration file of the host based thereon comprises: and analyzing the splicing command according to a preset format and modifying the configuration file of the host machine based on the analyzed splicing command.
In some embodiments, the method further comprises: and detecting whether the configuration parameters modified by the host machine are consistent with the commands.
In another aspect of the embodiment of the present invention, there is also provided a system for modifying configuration parameters of a host in real time, including: an association module configured to create a scheduling unit in a K8S cluster and associate a directory of hosts with the scheduling unit to eliminate logical isolation of the hosts from the scheduling unit; the monitoring module is configured to write a service application program into the scheduling unit and monitor the configuration file of the catalog; an execution module configured to write a command to a configuration file of the directory through the service application in response to receiving the command to modify a host configuration parameter; and a modification module configured to modify configuration parameters of the host based on a change in response to detecting the change in the configuration file of the directory.
In yet another aspect of the embodiment of the present invention, there is also provided a computer apparatus, including: at least one processor; and a memory storing computer instructions executable on the processor, which when executed by the processor, perform the steps of the method as above.
In yet another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium storing a computer program which, when executed by a processor, implements the method steps as described above.
The invention has the following beneficial technical effects: by utilizing the volume of kubernetes to realize the association between the pod and the host, the logical isolation between the host and the application is solved, so that the configuration parameters of the host can be modified in real time.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are necessary for the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention and that other embodiments may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of a method for modifying configuration parameters of a host in real time according to the present invention;
fig. 2 is a schematic hardware structure of an embodiment of a computer device for modifying configuration parameters of a host in real time according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the following embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that, in the embodiments of the present invention, all the expressions "first" and "second" are used to distinguish two entities with the same name but different entities or different parameters, and it is noted that the "first" and "second" are only used for convenience of expression, and should not be construed as limiting the embodiments of the present invention, and the following embodiments are not described one by one.
Based on the above object, in a first aspect of the embodiments of the present invention, an embodiment of a method for modifying configuration parameters of a host in real time is provided. Fig. 1 is a schematic diagram of an embodiment of a method for modifying configuration parameters of a host in real time. As shown in fig. 1, the embodiment of the present invention includes the following steps:
s1, creating a scheduling unit in a K8S cluster, and associating a directory of a host with the scheduling unit to eliminate logical isolation of the host and the scheduling unit;
s2, writing the service application program into the dispatching unit and monitoring the configuration file of the catalog;
s3, responding to the received command for modifying the configuration parameters of the host, and writing the command into the configuration file of the catalog through the service application program; and
s4, responding to the detection of the change of the configuration file of the directory, and modifying the configuration parameters of the host machine based on the change.
Kubernetes (K8S) is an open-source application for managing containerization on multiple hosts in a cloud platform, the goal of Kubernetes is to make deploying containerized applications simple and efficient. Pod is the smallest scheduling unit of K8S, and logic isolation exists between the Pod and the host, namely, the operation instruction and the file system are mutually independent. The embodiment of the invention is mainly applied to the kubernetes architecture, and interfaces are externally provided through the service running in the pod, so that the real-time modification of the configuration parameters of the host machine is realized.
Creating a scheduling unit in the K8S cluster and associating the directory of the host with the scheduling unit to eliminate logical isolation of the host from the scheduling unit.
In some implementations, the associating the directory of hosts with the schedule unit to eliminate logical isolation of the hosts from the schedule unit includes: and mounting the file directory of the file system of the host machine to the scheduling unit. A certain file directory in the host file system can be used as a resource volume in kubernetes and is mounted on the pod, and at the moment, an application program running in the pod can modify the file content in the volume like modifying a local file.
And writing the service application program into the dispatching unit and monitoring the configuration file of the catalog. The service application program is deployed in the pod of kubernetes, and can monitor the configuration file of the mounted directory continuously through a watch mechanism.
In response to receiving a command to modify a host configuration parameter, the command is written by the service application into a configuration file of the directory.
In some embodiments, the writing, by the service application, the command into the configuration file of the directory includes: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog. And the user transfers the configuration parameters to be modified or the commands to be executed to the background application through calling the interface of the service, and the background application installs the corresponding command splicing commands according to different functions to be realized.
In some embodiments, the writing the splice command into the configuration file of the directory includes: and writing the splicing command into a configuration file of the catalog after converting the format.
In response to detecting a change in the configuration file of the directory, modifying the configuration parameters of the host based on the change. The host continuously monitors the mounted directory through a watch mechanism, when a file modifying event occurs, the system calls a program, reads file contents, analyzes commands according to a fixed format, and executes corresponding operations, such as modifying certain configuration files or executing certain commands.
In some implementations, the modifying the configuration parameters of the host based on the change includes: and reading the configuration file of the catalog, acquiring a splicing command in the configuration file and modifying the configuration file of the host machine based on the splicing command.
In some embodiments, the obtaining splice commands in the configuration file and modifying the configuration file of the host based thereon comprises: and analyzing the splicing command according to a preset format and modifying the configuration file of the host machine based on the analyzed splicing command.
In some embodiments, the method further comprises: and detecting whether the configuration parameters modified by the host machine are consistent with the commands. In order to avoid the occurrence of an abnormality in the modification process, a detection mechanism may be set, and when the configuration parameters of the host are modified, the configuration parameters may be compared with the commands, and if the configuration parameters are consistent, the modification process is normal.
The embodiment of the invention realizes a multi-architecture host configuration real-time modification method based on an event monitoring mechanism under kubernetes architecture, solves the problem that the host configuration parameters cannot be directly modified by application in a pod node, and realizes the real-time modification of the service application host configuration file by a client under the condition of not increasing operation and maintenance workload.
It should be noted that, in the foregoing embodiments of the method for modifying the configuration parameters of the host in real time, the steps may be intersected, replaced, added and deleted, so that the method for modifying the configuration parameters of the host in real time by using these reasonable permutation and combination transforms shall also belong to the protection scope of the present invention, and shall not limit the protection scope of the present invention to the embodiments.
Based on the above object, a second aspect of the embodiments of the present invention provides a system for modifying configuration parameters of a host in real time, including: an association module configured to create a scheduling unit in a K8S cluster and associate a directory of hosts with the scheduling unit to eliminate logical isolation of the hosts from the scheduling unit; the monitoring module is configured to write a service application program into the scheduling unit and monitor the configuration file of the catalog; an execution module configured to write a command to a configuration file of the directory through the service application in response to receiving the command to modify a host configuration parameter; and a modification module configured to modify configuration parameters of the host based on a change in response to detecting the change in the configuration file of the directory.
In some embodiments, the association module is configured to: and mounting the file directory of the file system of the host machine to the scheduling unit.
In some embodiments, the execution module is configured to: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog.
In some embodiments, the execution module is further configured to: and writing the splicing command into a configuration file of the catalog after converting the format.
In some embodiments, the modification module is configured to: and reading the configuration file of the catalog, acquiring a splicing command in the configuration file and modifying the configuration file of the host machine based on the splicing command.
In some embodiments, the modification module is configured to: and analyzing the splicing command according to a preset format and modifying the configuration file of the host machine based on the analyzed splicing command.
In some embodiments, further comprising: and the detection module is configured to detect whether the configuration parameters modified by the host machine are consistent with the commands.
In view of the above object, a third aspect of the embodiments of the present invention provides a computer device, including: at least one processor; and a memory storing computer instructions executable on the processor, the instructions being executable by the processor to perform the steps of: s1, creating a scheduling unit in a K8S cluster, and associating a directory of a host with the scheduling unit to eliminate logical isolation of the host and the scheduling unit; s2, writing the service application program into the dispatching unit and monitoring the configuration file of the catalog; s3, responding to the received command for modifying the configuration parameters of the host, and writing the command into the configuration file of the catalog through the service application program; and S4, responding to the detection of the change of the configuration file of the directory, and modifying the configuration parameters of the host machine based on the change.
In some implementations, the associating the directory of hosts with the schedule unit to eliminate logical isolation of the hosts from the schedule unit includes: and mounting the file directory of the file system of the host machine to the scheduling unit.
In some embodiments, the writing, by the service application, the command into the configuration file of the directory includes: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog.
In some embodiments, the writing the splice command into the configuration file of the directory includes: and writing the splicing command into a configuration file of the catalog after converting the format.
In some implementations, the modifying the configuration parameters of the host based on the change includes: and reading the configuration file of the catalog, acquiring a splicing command in the configuration file and modifying the configuration file of the host machine based on the splicing command.
In some embodiments, the obtaining splice commands in the configuration file and modifying the configuration file of the host based thereon comprises: and analyzing the splicing command according to a preset format and modifying the configuration file of the host machine based on the analyzed splicing command.
In some embodiments, the steps further comprise: and detecting whether the configuration parameters modified by the host machine are consistent with the commands.
As shown in fig. 2, a hardware structure diagram of an embodiment of the computer device for modifying host configuration parameters in real time is provided in the present invention.
Taking the example of the apparatus shown in fig. 2, the apparatus includes a processor 301 and a memory 302, and may further include: an input device 303 and an output device 304.
The processor 301, memory 302, input device 303, and output device 304 may be connected by a bus or other means, for example in fig. 2.
The memory 302 is used as a non-volatile computer readable storage medium, and may be used to store non-volatile software programs, non-volatile computer executable programs, and modules, such as program instructions/modules corresponding to the method for modifying configuration parameters of a host in real time in the embodiments of the present application. The processor 301 executes various functional applications of the server and data processing, i.e., a method of modifying configuration parameters of a host in real time, by executing nonvolatile software programs, instructions and modules stored in the memory 302.
The input device 303 may receive input information such as a user name and a password. The output device 304 may include a display device such as a display screen.
Program instructions/modules corresponding to one or more methods of modifying host configuration parameters in real time are stored in memory 302, which when executed by processor 301, perform the method of modifying host configuration parameters in real time in any of the method embodiments described above.
Any one embodiment of a computer device that performs the above method for modifying configuration parameters of a host in real time may achieve the same or similar effects as any one of the foregoing method embodiments corresponding thereto.
The invention also provides a computer readable storage medium storing a computer program which when executed by a processor performs the method as above.
Finally, it should be noted that, as will be appreciated by those skilled in the art, implementing all or part of the above-described methods in the embodiments may be implemented by a computer program to instruct related hardware, and the program of the method for modifying the configuration parameters of the host in real time may be stored in a computer readable storage medium, where the program may include the flow of the embodiments of the above-described methods when executed. The storage medium of the program may be a magnetic disk, an optical disk, a read-only memory (ROM), a random-access memory (RAM), or the like. The computer program embodiments described above may achieve the same or similar effects as any of the method embodiments described above.
The foregoing is an exemplary embodiment of the present disclosure, but it should be noted that various changes and modifications could be made herein without departing from the scope of the disclosure as defined by the appended claims. The functions, steps and/or actions of the method claims in accordance with the disclosed embodiments described herein need not be performed in any particular order. Furthermore, although elements of the disclosed embodiments may be described or claimed in the singular, the plural is contemplated unless limitation to the singular is explicitly stated.
It should be understood that as used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly supports the exception. It should also be understood that "and/or" as used herein is meant to include any and all possible combinations of one or more of the associated listed items.
The foregoing embodiment of the present invention has been disclosed with reference to the number of embodiments for the purpose of description only, and does not represent the advantages or disadvantages of the embodiments.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program for instructing relevant hardware, and the program may be stored in a computer readable storage medium, where the storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
Those of ordinary skill in the art will appreciate that: the above discussion of any embodiment is merely exemplary and is not intended to imply that the scope of the disclosure of embodiments of the invention, including the claims, is limited to such examples; combinations of features of the above embodiments or in different embodiments are also possible within the idea of an embodiment of the invention, and many other variations of the different aspects of the embodiments of the invention as described above exist, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, improvement, etc. of the embodiments should be included in the protection scope of the embodiments of the present invention.
Claims (9)
1. A method for modifying configuration parameters of a host in real time, comprising the steps of:
creating a scheduling unit in a K8S cluster, and associating a directory of a host with the scheduling unit to eliminate logical isolation of the host from the scheduling unit;
writing a service application program into the scheduling unit and monitoring a configuration file of the catalog;
responsive to receiving a command to modify a host configuration parameter, writing the command into a configuration file of the directory by the service application; and
in response to detecting a change in the configuration file of the directory, modifying configuration parameters of the host based on the change,
the writing of the command into the configuration file of the directory by the service application program includes: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog.
2. The method of claim 1, wherein the associating the directory of hosts with the schedule unit to eliminate logical isolation of the hosts from the schedule unit comprises:
and mounting the file directory of the file system of the host machine to the scheduling unit.
3. The method of claim 1, wherein writing the splice command into a configuration file of the directory comprises:
and writing the splicing command into a configuration file of the catalog after converting the format.
4. The method of claim 3, wherein the modifying the configuration parameters of the host based on the change comprises:
and reading the configuration file of the catalog, acquiring a splicing command in the configuration file and modifying the configuration file of the host machine based on the splicing command.
5. The method of claim 4, wherein the obtaining splice commands in the configuration file and modifying the configuration file of the host based thereon comprises:
and analyzing the splicing command according to a preset format and modifying the configuration file of the host machine based on the analyzed splicing command.
6. The method as recited in claim 1, further comprising:
and detecting whether the configuration parameters modified by the host machine are consistent with the commands.
7. A system for modifying configuration parameters of a host in real time, comprising:
an association module configured to create a scheduling unit in a K8S cluster and associate a directory of hosts with the scheduling unit to eliminate logical isolation of the hosts from the scheduling unit;
the monitoring module is configured to write a service application program into the scheduling unit and monitor the configuration file of the catalog;
an execution module configured to write a command to a configuration file of the directory through the service application in response to receiving the command to modify a host configuration parameter; and
a modification module configured to, in response to detecting a change in the configuration file of the directory, modify configuration parameters of the host based on the change,
the execution module is configured to: based on the interface of the service application program, the command is transmitted to the corresponding application, and a corresponding splicing command is generated according to the function to be realized and written into the configuration file of the catalog.
8. A computer device, comprising:
at least one processor; and
a memory storing computer instructions executable on the processor, which when executed by the processor, perform the steps of the method of any one of claims 1-6.
9. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method of any one of claims 1-6.
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