Instance creation method and device for stateful application, equipment and medium

Abstract

The embodiment of the invention discloses an instance creation method and device for stateful application, equipment and a medium. The method comprises the steps of obtaining an application instance creation request submitted by a user; executing a template mapping list from the application instance creation request, wherein the template mapping list comprises entries of corresponding relations between template names and template definitions, and the number of the template names is at least two; and respectively creating application instances corresponding to different template names by traversing each entry. The embodiment of the invention discloses a method and a device for establishing a stateful application. According to the embodiment of the invention, the template mapping list can beextracted from the application instance creation request submitted by the user, and the application instances with different configurations corresponding to different template names are created according to the template mapping list, so that the application instances with different configurations can run on different machines in the cluster, and the experience effect of the user is improved.

Description

technical field [0001] The embodiments of the present invention relate to the technical field of database applications, and in particular to a method, device, device and medium for creating an instance of a stateful application. Background technique [0002] The container cluster management system Kubernetes is an open source platform used to manage containerized applications on multiple hosts in the cloud platform, and can realize automatic deployment, automatic expansion and contraction, maintenance and other functions of container clusters. A pod is an application instance in a Kubernetes cluster. It is the smallest unit that can be created and deployed in Kubernetes. A pod contains one or more containers, as well as resources shared by containers such as storage and network. [0003] In a Kubernetes cluster, specific control pod resources are generally divided into stateful application controllers and stateless application controllers. For the built-in stateless controll...

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that the prior art has the following defects: when the stateful application controller in the prior art creates stateful application instances, it usually uses a fixed template to create all application instances , so the configurations of all application instances are exactly the same, but in actual applications due to heterogeneous differences among cluster machines, the running results of the same application instance created with the same template on different machines may not be ideal, thus reducing user experience effect

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