Stops out-of-date lab hosts from polluting the dataset with episodes
generated by buggy code. The valid-commits set mirrors the maintainer's
working clone on the Pi automatically — when the maintainer pulls or
pushes a new commit, the receiver picks it up within the 5-second
cache TTL with no service restart.
Receiver changes:
- receiver/version_gate.py (new): VersionGate(repo_path, window).
Each check() consults a frozenset of the last `window` commit
hashes from `git -C <repo> log --format=%H -n <window>`, refreshed
every 5s under a lock. Resilient to transient git failure (keeps
prior cache so a flaky `git` doesn't lock out every shipper).
- receiver/app.py: PUT extracts X-Cis490-Code-Commit; gate.check()
before ingest. Rejects with:
400 + remediation if header missing or malformed
412 + remediation + your_commit + head_commit if not in window
Remediation block is verbatim copy-pasteable into the lab-host
shell:
cd /opt/cis490 && sudo -u cis490 git pull origin main
sudo /opt/cis490/scripts/install-lab-host.sh
sudo systemctl restart cis490-orchestrator
- receiver/store.py: ingest_stream takes commit kwarg, stamps it on
the index.jsonl row (new optional field). Backfilled rows from
index_backfill.py also pull commit out of meta.json.
- receiver/config.py + etc/receiver.toml.example: new [version_gate]
section. enabled=true, repo_path=/home/max/cis490, window=100 by
default. Enabled toggle exists for emergency disable-and-collect.
Shipper changes:
- shipper/transport.py: ship_tarball() takes commit kwarg, sends
X-Cis490-Code-Commit header. 412 maps to status='fatal' so the
queue doesn't infinite-retry — operator must pull and reinstall
before the next ship will succeed.
- shipper/queue.py: reads meta.json::code_version.commit per
episode, passes through. On 412, logs the receiver's full
remediation block at ERROR level so journalctl on the lab host
shows exactly what to run.
Tests: 9 in test_version_gate (including 2 end-to-end via
starlette.testclient), 2 cover the boundary where new commits land
mid-cache and where missing-repo gracefully keeps prior cache.
157/157 total.
Index schema: existing rows stay valid (commit field is optional
on read). New rows from receiver-direct AND from index_backfill.py
include commit.
56 lines
1.3 KiB
Python
56 lines
1.3 KiB
Python
from __future__ import annotations
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import argparse
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import logging
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import os
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import uvicorn
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from .app import make_app
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from .config import ReceiverConfig
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from .store import EpisodeStore
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from .version_gate import VersionGate
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def main() -> None:
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parser = argparse.ArgumentParser(prog="cis490-receiver")
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parser.add_argument(
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"--config",
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default=os.environ.get("CIS490_RECEIVER_CONFIG", "/etc/cis490/receiver.toml"),
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help="path to receiver TOML config",
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)
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args = parser.parse_args()
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logging.basicConfig(
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level=logging.INFO,
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format="%(asctime)s %(levelname)s %(name)s %(message)s",
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)
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cfg = ReceiverConfig.load(args.config)
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store = EpisodeStore(
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store_root=cfg.store_root,
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incoming_root=cfg.incoming_root,
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index_path=cfg.index_path,
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)
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version_gate = None
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if cfg.version_gate_enabled:
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version_gate = VersionGate(
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repo_path=cfg.version_gate_repo,
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window=cfg.version_gate_window,
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)
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app = make_app(
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store=store,
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max_episode_bytes=cfg.max_episode_bytes,
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bearer_token=cfg.bearer_token,
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version_gate=version_gate,
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)
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uvicorn.run(
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app,
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host=cfg.listen_host,
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port=cfg.listen_port,
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log_config=None,
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)
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if __name__ == "__main__":
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main()
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