- decnet.models.DeckyConfig grows an optional 'host_uuid' (the SwarmHost
that runs this decky). Defaults to None so legacy unihost state files
deserialize unchanged.
- decnet.agent.executor: replace non-existent config.name references
with config.mode / config.interface in logs and status payload.
- tests/swarm/test_state_schema.py covers legacy-dict roundtrip, field
default, and swarm-mode assignments.
decnet.swarm.client exposes:
- MasterIdentity / ensure_master_identity(): the master's own CA-signed
client bundle, issued once into ~/.decnet/ca/master/.
- AgentClient: async-context httpx wrapper that talks to a worker agent
over mTLS. health/status/deploy/teardown methods mirror the agent API.
SSL context is built from a bare ssl.SSLContext(PROTOCOL_TLS_CLIENT)
instead of httpx.create_ssl_context — the latter layers on default-CA
and purpose logic that broke private-CA mTLS. Server cert is pinned by
CA + chain, not DNS (workers enroll with arbitrary SANs).
tests/swarm/test_client_agent_roundtrip.py spins uvicorn in-process
with real certs on disk and verifies:
- A CA-signed master client passes health + status calls.
- An impostor whose cert comes from a different CA cannot connect.
Worker agent (decnet.agent):
- mTLS FastAPI service exposing /deploy, /teardown, /status, /health,
/mutate. uvicorn enforces CERT_REQUIRED with the DECNET CA pinned.
- executor.py offloads the blocking deployer onto asyncio.to_thread so
the event loop stays responsive.
- server.py refuses to start without an enrolled bundle in
~/.decnet/agent/ — unauthenticated agents are not a supported mode.
- docs/openapi disabled on the agent — narrow attack surface.
tests/test_base_repo.py: DummyRepo was missing get_attacker_artifacts
(pre-existing abstractmethod) and so could not be instantiated. Added
the stub + coverage for the new swarm CRUD surface on BaseRepository.
decnet.swarm.pki provides:
- generate_ca() / ensure_ca() — self-signed root, PKCS8 PEM, 4096-bit.
- issue_worker_cert() — per-worker keypair + cert signed by the CA with
serverAuth + clientAuth EKU so the same identity backs the agent's
HTTPS endpoint AND the syslog-over-TLS upstream.
- write_worker_bundle() / load_worker_bundle() — persist with 0600 on
private keys.
- fingerprint() — SHA-256 DER hex for master-side pinning.
tests/swarm/test_pki.py covers:
- CA idempotency on disk.
- Signed chain validates against CA subject.
- SAN population (DNS + IP).
- Bundle roundtrip with 0600 key perms.
- End-to-end mTLS handshake between two CA-issued peers.
- Cross-CA client rejection (handshake fails).
