* Fix IAM reload after legacy config migration
Handle legacy identity.json metadata events by reloading from the credential manager instead of parsing event content, and watch the correct /etc/iam multi-file directories so identity changes are applied.
Add regression tests for legacy deletion and /etc/iam/identities change events.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Fix auth_credentials_subscribe_test helper to not pollute global memory store
The SaveConfiguration call was affecting other tests. Use local credential manager and ReplaceS3ApiConfiguration instead.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Fix IAM event watching: subscribe to IAM directories and improve directory matching
- Add /etc/iam and its subdirectories (identities, policies, service_accounts) to directoriesToWatch
- Fix directory matching to avoid false positives from sibling directories
- Use exact match or prefix with trailing slash instead of plain HasPrefix
- Prevents matching hypothetical /etc/iam/identities_backup directory
This ensures IAM config change events are actually delivered to the handler.
* fix tests
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Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>