US 12,769,537 B2Granted

Managing container images

AssigneeInternational Business Machines Corporation

InventorsQi Feng Huo, Da Li Liu, Yuan Yuan Wang, Yan Song Liu, Lei Li

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Abstract

Managing container images is provided. A number of a set of changed files included in a plurality of upgraded files is determined in response to identifying the set of changed files. It is determined whether the number of the set of changed files included in the plurality of upgraded files is greater than a defined file change threshold level. In response to determining that the number of the set of changed files included in the plurality of upgraded files is not greater than the defined file change threshold level, a new increment file layer that is in addition to an original file layer of a plurality of original layers is generated in an upgraded container image of an original container image. The set of changed files is copied in the new increment file layer of the upgraded container image.

Claims18

Dependent claims

A computer-implemented method for managing container images, the computer-implemented method comprising:

determining, by a computer, a number of a set of changed files included in a plurality of upgraded files in response to identifying the set of changed files;
determining, by the computer, whether the number of the set of changed files included in the plurality of upgraded files is greater than a defined file change threshold level;
responsive to the computer determining that the number of the set of changed files included in the plurality of upgraded files is not greater than the defined file change threshold level, generating, by the computer, a new increment file layer that is in addition to an original file layer of a plurality of original layers in an upgraded container image of an original container image;
copying, by the computer, the set of changed files in the new increment file layer of the upgraded container image;
receiving, by the computer, an input to upgrade the original container image to a new version of the original container image;
determining, by the computer, an identifier corresponding to the new version of the original container image;
responsive to the computer determining that the identifier corresponding to the new version of the original container image is not associated with the new increment file layer that contains the set of changed files based on a search of a remote image registry, determining, by the computer, that the identifier corresponding to the new version of the original container image is associated with a new anchor file layer;
retrieving, by the computer, the new anchor file layer that contains the set of changed files and a plurality of original files from the remote image registry using the identifier;
and
replacing, by the computer, the original file layer of the plurality of original layers with the new anchor file layer that contains the set of changed files and the plurality of original files retrieved from the remote image registry to form the new version of the original container image.

7 more elements

A computer system for managing container images, the computer system comprising:

a communication fabric;
a set of computer-readable storage media connected to the communication fabric, wherein the set of computer-readable storage media collectively stores program instructions;
and
a set of processors connected to the communication fabric, wherein the set of processors executes the program instructions to:
determine a number of a set of changed files included in a plurality of upgraded files in response to identifying the set of changed files;
determine whether the number of the set of changed files included in the plurality of upgraded files is greater than a defined file change threshold level;
generate a new increment file layer that is in addition to an original file layer of a plurality of original layers in an upgraded container image of an original container image in response to determining that the number of the set of changed files included in the plurality of upgraded files is not greater than the defined file change threshold level;
copy the set of changed files in the new increment file layer of the upgraded container image;
receive an input to upgrade the original container image to a new version of the original container image;
determine an identifier corresponding to the new version of the original container image;
determine that the identifier corresponding to the new version of the original container image is associated with a new anchor file layer in response to determining that the identifier corresponding to the new version of the original container image is not associated with the new increment file layer that contains the set of changed files based on a search of a remote image registry;
retrieve the new anchor file layer that contains the set of changed files and a plurality of original files from the remote image registry using the identifier;
and
replace the original file layer of the plurality of original layers with the new anchor file layer that contains the set of changed files and the plurality of original files retrieved from the remote image registry to form the new version of the original container image.

11 more elements

A computer program product for managing container images, the computer program product comprising a set of computer-readable storage media having program instructions collectively stored therein, the program instructions executable by a computer to cause the computer to:

determine a number of a set of changed files included in a plurality of upgraded files in response to identifying the set of changed files;
determine whether the number of the set of changed files included in the plurality of upgraded files is greater than a defined file change threshold level;
generate a new increment file layer that is in addition to an original file layer of a plurality of original layers in an upgraded container image of an original container image in response to determining that the number of the set of changed files included in the plurality of upgraded files is not greater than the defined file change threshold level;
copy the set of changed files in the new increment file layer of the upgraded container image;
receive an input to upgrade the original container image to a new version of the original container image;
determine an identifier corresponding to the new version of the original container image;
determine that the identifier corresponding to the new version of the original container image is associated with a new anchor file layer in response to determining that the identifier corresponding to the new version of the original container image is not associated with the new increment file layer that contains the set of changed files based on a search of a remote image registry;
retrieve the new anchor file layer that contains the set of changed files and a plurality of original files from the remote image registry using the identifier;
and
replace the original file layer of the plurality of original layers with the new anchor file layer that contains the set of changed files and the plurality of original files retrieved from the remote image registry to form the new version of the original container image.

7 more elements

Dependencies are inferred from the claim text.