Research using cloud-init as an alternative to ignition for podman machine-os configuration.

Investigate the feasibility, benefits, and implementation considerations of using cloud-init instead of ignition for machine initialization. This spike should compare capabilities, identify gaps, and recommend an approach.

Acceptance Criteria

This should be filled in by the assignee prior to the card going to code review and preferably earlier.

• [ ] Criterion 1
• [ ] Criterion 2
• [ ] Criterion 3