Files
DECNET/decnet/web/router/swarm_updates/api_push_update_self.py
anti 8a2876fe86
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fix(api): document missing HTTP status codes on router endpoints
Schemathesis was failing CI on routes that returned status codes not
declared in their OpenAPI responses= dicts. Adds the missing codes
across swarm_updates, swarm_mgmt, swarm, fleet and attackers routers.

Also adds 400 to every POST/PUT/PATCH that accepts a JSON body —
Starlette returns 400 on malformed/non-UTF8 bodies before FastAPI's
422 validation runs, which schemathesis fuzzing trips every time.

No handler logic changed.
2026-04-20 15:25:02 -04:00

102 lines
4.1 KiB
Python

"""POST /swarm-updates/push-self — push only to workers' /update-self.
Use case: the agent is fine but the updater itself needs an upgrade (e.g.
a fix to ``executor.py``). Uploading only ``/update-self`` avoids a
redundant agent restart on healthy workers.
No auto-rollback: the updater re-execs itself on success, so a broken
push leaves the worker on the old code — verified by polling ``/health``
after the request returns.
"""
from __future__ import annotations
import asyncio
from typing import Any
from fastapi import APIRouter, Depends
from decnet.logging import get_logger
from decnet.swarm.tar_tree import detect_git_sha, tar_working_tree
from decnet.swarm.updater_client import UpdaterClient
from decnet.web.db.models import PushUpdateRequest, PushUpdateResponse, PushUpdateResult
from decnet.web.db.repository import BaseRepository
from decnet.web.dependencies import get_repo, require_admin
from .api_push_update import _is_expected_connection_drop, _master_tree_root, _resolve_targets
log = get_logger("swarm_updates.push_self")
router = APIRouter()
async def _push_self_one(host: dict[str, Any], tarball: bytes, sha: str) -> PushUpdateResult:
try:
async with UpdaterClient(host=host) as u:
try:
r = await u.update_self(tarball, sha=sha)
http_status = r.status_code
body = r.json() if r.content else {}
ok = http_status == 200
detail = (body.get("error") or body.get("probe")) if isinstance(body, dict) else None
stderr = body.get("stderr") if isinstance(body, dict) else None
except Exception as exc: # noqa: BLE001
# Connection drops during self-update are expected — the updater
# re-execs itself mid-response.
if _is_expected_connection_drop(exc):
return PushUpdateResult(
host_uuid=host["uuid"], host_name=host["name"],
status="self-updated", sha=sha,
detail="updater re-exec dropped connection (expected)",
)
raise
return PushUpdateResult(
host_uuid=host["uuid"], host_name=host["name"],
status="self-updated" if ok else "self-failed",
http_status=http_status, sha=sha,
detail=detail, stderr=stderr,
)
except Exception as exc: # noqa: BLE001
log.exception("swarm_updates.push_self failed host=%s", host.get("name"))
return PushUpdateResult(
host_uuid=host["uuid"], host_name=host["name"],
status="self-failed",
detail=f"{type(exc).__name__}: {exc}",
)
@router.post(
"/push-self",
response_model=PushUpdateResponse,
tags=["Swarm Updates"],
responses={
400: {"description": "Bad Request (malformed JSON body or conflicting host_uuids/all flags)"},
401: {"description": "Could not validate credentials"},
403: {"description": "Insufficient permissions"},
404: {"description": "No matching target hosts or no updater-capable hosts enrolled"},
422: {"description": "Request body validation error"},
},
)
async def api_push_update_self(
req: PushUpdateRequest,
admin: dict = Depends(require_admin),
repo: BaseRepository = Depends(get_repo),
) -> PushUpdateResponse:
targets = await _resolve_targets(repo, req)
tree_root = _master_tree_root()
# Offload sync I/O (git shell-out + tar+gzip of the repo) so the event
# loop stays responsive while the tarball is being built.
sha = await asyncio.to_thread(detect_git_sha, tree_root)
tarball = await asyncio.to_thread(tar_working_tree, tree_root, extra_excludes=req.exclude)
log.info(
"swarm_updates.push_self sha=%s tarball=%d hosts=%d",
sha or "(not a git repo)", len(tarball), len(targets),
)
results = await asyncio.gather(
*(_push_self_one(h, tarball, sha) for h in targets)
)
return PushUpdateResponse(
sha=sha,
tarball_bytes=len(tarball),
results=list(results),
)