T6489: Add support for CLI config scripts that change the underlaying working configuration

[c-po]

Change Summary

We still have some scripts (python owners) for CLI commands that are incompatible with vyos-configd.

T6481 is just another request for such a feature.

Instead of calling my_set and my_delete binary helpers for the store backend we could create a thin Python wrapper who interacts with the unionfs directly - and without the configsession overhead when spawning the cstore code.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Code style update (formatting, renaming)
• Refactoring (no functional changes)
• Migration from an old Vyatta component to vyos-1x, please link to related PR inside obsoleted component
• Other (please describe):

Related Task(s)

• https://vyos.dev/T6489

Related PR(s)

Component(s) name

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How to test

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Checklist:

• I have read the CONTRIBUTING document
• I have linked this PR to one or more Phabricator Task(s)
• I have run the components SMOKETESTS if applicable
• My commit headlines contain a valid Task id
• My change requires a change to the documentation
• I have updated the documentation accordingly

[github-actions]

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[jestabro]

Having discussed this with @c-po , I think it is a smart and useful idea for handling the two existing corner case exceptions to running under vyos-configd --- it should be generalizable when we are ready to drop reliance on CStore.

I would recommend giving it time in current before backporting; I would caution that it should be applied sparingly, and only for config settings that have no effectful behavior in the respective conf-mode script.

[c-po]

@Mergifyio backport circinus

[mergify]

backport circinus

✅ Backports have been created

• #3717 T6489: Add support for CLI config scripts that change the underlaying working configuration (backport #3652) has been created for branch circinus