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Each OpenStack series pack lists method + path operations. At startup every
unique (method, path) is registered as its own FastAPI route (os-contract:…),
Proxmox-style. Stateful handlers from specialized modules are looked up via a
HandlerRegistry; everything else falls through to the schema engine
(os_api_objects lab JSON).
| Series | Services | Operations (approx.) |
|---|---|---|
| Yoga | 28 | ~1060 |
| Antelope | 28 | ~1108 |
| Caracal | 28 | ~1196 |
| Dalmatian | 28 | ~1357 |
Authoritative numbers: api_coverage.md.
| Layer | Services / resources |
|---|---|
| Specialized handlers | Keystone tokens/catalog, Nova servers/flavors/keypairs/…, Neutron nets/ports/…, Glance images, Cinder volumes, Heat stacks, Swift, Ironic nodes, Octavia LBs, Placement RPs |
| Schema fallback | Remaining pack collections (Barbican, Manila, Designate, Magnum, …) including nested paths |
Headers such as OpenStack-API-Version: compute 2.79 and
X-OpenStack-Nova-API-Version are accepted and gated per pack metadata.
Overrides can be set in the Web UI Environment drawer.
Nova-style POST /servers/{id}/action and similar pack kind=action ops are
handled by the schema/action path (power state updates for common actions).
OpenStack-shaped errors (OpenStackError) with code, title, message.
Unknown routes that are not in the active contract pack return standard
FastAPI 404.