Method and device for creating persistent data volume and server

Abstract

The invention provides a method and device for creating a persistent data volume and a server. The method is applied to a first server. A container management application Kubernetes runs in the first server; when the Pod needs to be started, determining a target node for operating the Pod from a preset container node cluster according to the configuration requirement of the Pod; the node name of the target node and the persistent data volume request corresponding to the Pod are stored in an associated mode, so that the target node creates a logical volume and a persistent data volume according to the persistent data volume request; and binding the persistent data volume request and the persistent data volume, and binding the Pod and the target node. According to the method, when the persistent data volume is created, a proper target node can be selected according to the configuration requirement of the Pod, the target node creates the persistent data volume according to the persistent data volume request, and the direction is different from the direction of a pre-appointed path for creating the persistent data volume, so that dynamic creation of the persistent data volume is realized; and the use convenience of the persistent data volume is improved.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a method, device and server for creating persistent data volumes. Background technique [0002] A data volume Volume is a specific file or folder that exists in one or more containers, and the directory of the specific file or folder exists in the host machine in a form independent of the joint file system. In Kubernetes (also known as K8S), a Volume needs to be mounted to each Pod, and then the process or container running in the Pod can use the mounted Volume through VolumeMounts. [0003] A Persistent Volume (PV for short) is a storage space in an external storage system, which can be created and maintained by an administrator. Like Volume, PV is persistent and its life cycle is independent of Pod. In the process of creating a PV, you need to create a PV based on the local path, that is, there is a relevant directory on a local node device, you need to specif...

AI Technical Summary

Problems solved by technology

In the process of creating a PV, you need to create a PV based on the local path, that is, there is a relevant directory on a local node device, you need to specify this directory when creating a PV, and the path of the created PV is relatively fixed, resulting in the use of PV poor convenience

Images