Method and device for mounting host directory into container environment

Abstract

The embodiment of the invention provides a method and device for mounting a host directory into a container environment, and the method comprises the steps: obtaining physical disk equipment information on the host and a process number of an internal process of a running container on the host machine, and entering the container environment according to the process number; creating corresponding virtual disk equipment information in the container based on the physical disk equipment information; mounting the virtual disk equipment information under a temporary directory in the container to realize that the temporary directory covers the directory information of the host machine; and mounting the host directory information under the temporary directory to the container directory to mount thehost directory to the container environment. The embodiment of the invention provides a method and equipment for mounting a host directory into a container environment, the host catalogue is mapped to the container catalogue when the containers are operated, stable operation can be achieved under the conditions that docker services are suspended and the like, and convenience is provided for sharing file information between different containers on the same host and between the host machines and the containers.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a method and device for mounting a directory of a host computer into a container environment. Background technique [0002] In the current mainstream container implementation scheme, when starting a new container, the host directory can be mounted to the container environment through the directory mount parameter dockerrun-v / hostpath: / containerpath imagename; it can also be installed on the host computer through docker cp Copy file directories to and from containers. [0003] Among them, the docker cp solution cannot be used normally in extreme cases where the docker service hangs and basic docker commands are unavailable, resulting in failure to obtain key information for diagnosing the problem. [0004] In addition, the docker run solution can only mount the host directory for the container when the container is created and started, and cannot mount the host directory for th...

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Problems solved by technology

[0003] Among them, the docker cp solution cannot be used normally in extreme cases where the docker service hangs and basic docker commands are unavailable, resulting in failure to obtain key information for diagnosing the problem

[0004] In addition, the docker run solution can only mount the host directory for the container when the

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