feat: generate ibmflashsystemiscsi charm

[ahmad-can]

Related Charm https://review.opendev.org/c/openstack/sunbeam-charms/+/983822

[Copilot]

Pull request overview

Adds a new Sunbeam storage backend implementation for IBM FlashSystem over iSCSI, and wires it into the unit-test backend matrix so it’s exercised alongside existing backends.

Changes:

• Introduces IbmflashsystemiscsiBackend and its Pydantic config model.
• Adds backend-specific unit tests for IBM FlashSystem iSCSI config/type behavior.
• Extends shared backend fixtures and common backend expectation tests to include the new backend.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
sunbeam-python/sunbeam/storage/backends/ibmflashsystemiscsi/backend.py	New backend + config model (protocol enum, charm metadata, config schema).
sunbeam-python/sunbeam/storage/backends/ibmflashsystemiscsi/__init__.py	New backend package marker/docstring.
sunbeam-python/tests/unit/sunbeam/storage/backends/conftest.py	Adds ibmflashsystemiscsi_backend fixture and includes it in any_backend.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_common.py	Extends uniqueness and expected-value checks for type/charm name to include IBM backend.
sunbeam-python/tests/unit/sunbeam/storage/backends/test_ibmflashsystemiscsi.py	New IBM backend tests + protocol validation checks.

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