Summary:
Define the one-time irreversible migration approach to remove Eventlet from Masakari, including the adoption strategy, communication, and documentation needed for a smooth cutover.

Goal:
Success means having a clear and actionable cutover plan that outlines how Masakari will transition to the new threading-based model, with all required communication, documentation, and readiness materials for developers and operators.

TimeBox:
1.5 weeks (60 hours)

Deliverables/Outcomes:

• Phased cutover approach with pre-migration requirements

• Documentation (new APIs, patterns, code migration guidance, new runtime model, config changes, performance expectations)

• Breakdown into Epics & Stories representing the full implementation scope