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feat: implement QEMU clone and local migration

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This commit is contained in:
Sergey Antropoff
2026-07-13 02:14:00 +03:00
parent 48f7cc39ff
commit 41b76b5472
10 changed files with 279 additions and 4 deletions
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app/handlers/qemu.py
+68
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@@ -322,6 +322,69 @@ def register_qemu_handlers(registry: HandlerRegistry) -> None:
async def snapshot_rollback(request: Request, inputs: dict[str, Any]) -> str:
return await snapshot_task("snapshot-rollback", request, inputs)
async def clone(request: Request, inputs: dict[str, Any]) -> str:
values = _values(inputs)
node, vmid, newid = str(values["node"]), str(values["vmid"]), str(values["newid"])
source = await _qemu_resource(request, node, vmid)
if await _database(request).pool.fetchval(
"""SELECT EXISTS(SELECT 1 FROM resources
WHERE external_id=$1 AND kind IN ('qemu','lxc'))""",
newid,
):
raise ApiError(409, "VMID already exists")
target = str(values.get("target") or node)
if not await _database(request).pool.fetchval(
"SELECT EXISTS(SELECT 1 FROM nodes WHERE name=$1)", target
):
raise ApiError(404, "target node does not exist")
return await _create_task(
request,
node=target,
vmid=newid,
task_type="qemu-clone",
payload={
"source_resource_id": str(source["id"]),
"source_vmid": vmid,
"node": target,
"vmid": int(newid),
"name": values.get("name"),
"description": values.get("description"),
"full": bool(values.get("full", False)),
},
)
async def migrate_preconditions(request: Request, inputs: dict[str, Any]) -> dict[str, Any]:
values = _values(inputs)
await _qemu_resource(request, str(values["node"]), str(values["vmid"]))
target = str(values["target"])
exists = await _database(request).pool.fetchval(
"SELECT EXISTS(SELECT 1 FROM nodes WHERE name=$1)", target
)
if not exists:
raise ApiError(404, "target node does not exist")
return {"local_disks": [], "local_resources": [], "running": False}
async def migrate(request: Request, inputs: dict[str, Any]) -> str:
values = _values(inputs)
node, vmid, target = str(values["node"]), str(values["vmid"]), str(values["target"])
resource = await _qemu_resource(request, node, vmid)
if target == node:
raise ApiError(400, "target node is the same as source node")
await migrate_preconditions(request, inputs)
return await _create_task(
request,
node=node,
vmid=vmid,
task_type="qemu-migrate",
payload={
"resource_id": str(resource["id"]),
"node": node,
"target": target,
"vmid": vmid,
"online": bool(values.get("online", False)),
},
)
async def task_list(request: Request, inputs: dict[str, Any]) -> list[dict[str, Any]]:
tasks = await TaskRepository(_database(request).pool).list_for_node(
str(_values(inputs)["node"])
@@ -382,6 +445,9 @@ def register_qemu_handlers(registry: HandlerRegistry) -> None:
registry.register(
"/nodes/{node}/qemu/{vmid}/snapshot/{snapname}/rollback", "POST", snapshot_rollback
)
registry.register("/nodes/{node}/qemu/{vmid}/clone", "POST", clone)
registry.register("/nodes/{node}/qemu/{vmid}/migrate", "GET", migrate_preconditions)
registry.register("/nodes/{node}/qemu/{vmid}/migrate", "POST", migrate)
registry.register("/nodes/{node}/tasks", "GET", task_list)
registry.register("/nodes/{node}/tasks/{upid}/status", "GET", task_status)
registry.register("/nodes/{node}/tasks/{upid}/log", "GET", task_log)
@@ -405,6 +471,8 @@ async def _create_task(
"qemu-snapshot-create": "qmsnapshot",
"qemu-snapshot-delete": "qmdelsnapshot",
"qemu-snapshot-rollback": "qmrollback",
"qemu-clone": "qmclone",
"qemu-migrate": "qmigrate",
}[task_type]
upid = str(Upid(node, pid, pid, timestamp, worker_type, vmid, str(request.state.principal)))
try: