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chore(interfaces): move observability schemas to the new format - #664

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chore(interfaces): move observability schemas to the new format#664
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james-garner-canonical:26-08+chore+interface-schemas-observability

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This PR replaces the pytest-interface-tester wrappers in the schema with a new convention: naming all four databags directly, as ProviderAppData, ProviderUnitData, RequirerAppData and RequirerUnitData, setting a databag that is always empty to None.

A follow up PR will document this and add tooling to enforce it, after similar PRs have landed for all the other CODEOWNERS in this repository.

Only the latest version of each schema is updated. We plan to flatten the interface definitions in future to no longer store old versions, and only validate and document the current version.

This PR also removes the interface test definitions for these interfaces. The interface tests are being retired; the tooling that ran them is being removed separately.

…w format

Interface schemas no longer wrap their models in the `ProviderSchema` and
`RequirerSchema` classes from `pytest-interface-tester`. Instead a schema names
all four databags directly, as `ProviderAppData`, `ProviderUnitData`,
`RequirerAppData` and `RequirerUnitData`, setting a databag that is always empty
to `None`.

Naming all four makes an empty databag a deliberate choice a reviewer can see,
and makes a misspelled name an error rather than a silently empty databag. The
models are unchanged; only the wrapper classes around them are gone. Dropping
the `pytest-interface-tester` import leaves Pydantic as the only dependency
needed to read a schema.

This also removes the interface test definitions for these interfaces. The
interface tests are being retired; the tooling that ran them is removed
separately.

A follow-up PR documents the format and adds a CI check for it, once every
interface has been migrated.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
@james-garner-canonical
james-garner-canonical marked this pull request as ready for review September 3, 2026 06:01

@lucabello lucabello left a comment

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LGTM!

@james-garner-canonical
james-garner-canonical force-pushed the 26-08+chore+interface-schemas-observability branch from c9635b1 to 70f0d20 Compare September 11, 2026 03:10
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2 participants