File-based method for communication between virtual machine and host machine

Abstract

The invention relates to the field of cloud computing and network technologies, especially to a file-based method for communication between a virtual machine and a host machine. Serial channel communication between a virtual machine and a physical machine is kept by using a qemu-guest-agent tool and a file content is encrypted to prevent coding during the communication process; a writable file path in the virtual machine is opened by using the qemu-guest-agent tool; and then the encrypted content is decrypted and then the decrypted content is written into the file, thereby realizing communication between the physical machine and the virtual machine in a file manner. According to the method provided by the invention, a cloud platform can update the file inside the virtual machine, thereby keeping function completeness and data consistency of the virtual machine; and thus the internal environment of the virtual machine owned by the client can be updated without the need to transfer any service, thereby enhancing the user experience.

Description

technical field [0001] The invention relates to the field of cloud computing and network technology, in particular to a file-based communication method between a virtual machine and a host computer. Background technique [0002] With the increasing development of the cloud computing industry, there are more and more virtual machines on the cloud platform, and the technology is constantly updated. It is a big difficulty for the existing virtual machine update, which will bring the following problems: [0003] First, the virtual machine client environment is kept secret, and it is almost impossible for operation and maintenance personnel to manually update files to the virtual machine, which brings difficulties to system upgrades. [0004] The second is that human operations are prone to errors, causing certain risks to customer business data. [0005] The third is that the number of virtual machines is large, which brings a lot of workload to the operation and maintenance up...

AI Technical Summary

Problems solved by technology

[0003] First, the virtual machine client environment is kept secret, and it is almost impossible for operation and maintenance personnel to manually update files to the virtual machine, which brings difficulties to system upgrades

[0004] Second, human operations are prone to errors, causing certain risks to customer business data

[0005] The third is that the number of virtual machines is large, which brings a lot of workload to the operation and maintenance upgrade

[0006] Fourth, the number of virtual machines is large, and the consistency of internal files is difficult to guarantee

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