03.Version-cache - framework environment settings

[Kalimuthu-Velappan]

It defines and passes the necessary version cache environment variables to the caching framework. It adds the utils script for shared cache file access. It also adds the post-cleanup logic for cleaning the unwanted files from the docker/image after the version cache creation.

The following variable controls the version caching feature. By default, it is turned off. SONIC_VERSION_CACHE_METHOD = [none/cache] SONIC_VERSION_CACHE_SOURCE = /path/to/local/storage

Why I did it

How I did it

How to verify it

Which release branch to backport (provide reason below if selected)

• [ ] 201811
• [ ] 201911
• [ ] 202006
• [ ] 202012
• [ ] 202106
• [ ] 202111
• [ ] 202205

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[Kalimuthu-Velappan]

/azpw run Azure.sonic-buildimage

[mssonicbld]

/AzurePipelines run Azure.sonic-buildimage

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Azure Pipelines successfully started running 1 pipeline(s).

[adyeung]

@xumia @liushilongbuaa submitter has taken the time to split the original code PR to smaller submissions for review, pls help take a look

[zhangyanzhao]

@xumia @liushilongbuaa can you please review the PR? Thanks.

[xumia]

@Kalimuthu-Velappan , could you please update the description? Add something in the Why/How/How parts, thanks.

[Kalimuthu-Velappan]

/azpw run Azure.sonic-buildimage

[mssonicbld]

/AzurePipelines run Azure.sonic-buildimage

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Azure Pipelines successfully started running 1 pipeline(s).

[Kalimuthu-Velappan]

It is merged as part of https://github.com/sonic-net/sonic-buildimage/pull/12005