52 lines
1.9 KiB
Python
52 lines
1.9 KiB
Python
"""DELETE /topologies/{id} — cascade-delete a pending or torn-down topology."""
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from __future__ import annotations
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from fastapi import APIRouter, Depends, HTTPException, Response, status
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from decnet.telemetry import traced as _traced
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from decnet.topology.status import TopologyStatus
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from decnet.web.dependencies import repo, require_admin
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router = APIRouter()
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# Only allow delete when containers are guaranteed not to be running.
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# ACTIVE / DEPLOYING / DEGRADED / TEARING_DOWN must teardown first.
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_DELETABLE: frozenset[str] = frozenset(
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{TopologyStatus.PENDING, TopologyStatus.TORN_DOWN, TopologyStatus.FAILED}
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)
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@router.delete(
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"/{topology_id}",
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tags=["MazeNET Topologies"],
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status_code=status.HTTP_204_NO_CONTENT,
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responses={
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400: {"description": "Malformed path parameters"},
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401: {"description": "Missing or invalid credentials"},
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403: {"description": "Insufficient permissions"},
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404: {"description": "Topology not found"},
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409: {"description": "Topology has running resources; teardown first"},
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},
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)
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@_traced("api.topology.delete")
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async def api_delete_topology(
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topology_id: str,
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_admin: dict = Depends(require_admin),
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) -> Response:
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topo = await repo.get_topology(topology_id)
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if topo is None:
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raise HTTPException(status_code=404, detail="Topology not found")
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if topo["status"] not in _DELETABLE:
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raise HTTPException(
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status_code=409,
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detail=(
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f"Topology is {topo['status']!r}; teardown to 'torn_down' "
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f"before delete."
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),
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)
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deleted = await repo.delete_topology_cascade(topology_id)
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if not deleted:
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# Race: row vanished between the status check and the cascade.
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raise HTTPException(status_code=404, detail="Topology not found")
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return Response(status_code=status.HTTP_204_NO_CONTENT)
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