Commit Graph
11 Commits
Author SHA1 Message Date
osobh baefd95427 Phase 9 F4: namespaced tokens for multi-tenant aggregator (#104)
Build with clawstor cache / Cargo build (clawstor-cached) (push) Failing after 2s
2026-07-15 07:16:57 +00:00
Omar Sobh 2f3055a3aa blob: size-based LRU eviction + auto-cap in the GC ticker
Orphan-chunk GC alone doesn't stop unbounded growth: as long as
fingerprint→blob refs keep getting PutRef'd, the manifest set keeps
growing and no chunk is ever an orphan.

* `BlobStore::evict_to_size_cap(max_bytes)` — walks manifests oldest
  first by mtime, deletes them, refcount-decrements each chunk they
  used, unlinks + reclaims size for any chunk whose refcount hits
  zero. Shared chunks stay put until the last blob referencing them
  is evicted.
* `ManifestSummary` internal type keeps the diff-set bookkeeping
  cheap (one HashMap<ChunkHash, u32>, no repeated tree walks).
* `claw-store cluster-gc --evict-to-gb <N>` extends the CLI: still
  runs the orphan sweep first, then optionally caps the store.
* Config: `cluster.blob_max_gb: Option<u64>`. The auto-GC ticker
  runs eviction after every orphan sweep when this is set. Silent
  when the store is already under cap; INFO log when it evicts.

+3 tests:
- evict_to_size_cap_reclaims_oldest_blobs_first: 3 blobs with
  distinct mtimes, cap below combined size → oldest evicted,
  newer blobs survive
- evict_keeps_shared_chunks_when_still_referenced: guards the
  refcount decrement path (content-addressed dedup keeps identical
  content as one blob → chunk survives until manifest deleted)
- evict_on_empty_store_is_a_noop: sanity

257 tests pass (baseline +3). Pre-existing macOS failure unchanged.
2026-07-12 06:35:17 -07:00
Omar Sobh 84aa758fd4 Two pilot follow-ons: rustc drift warning + blob GC
Both surfaced by the 2026-07-12 pilot as real operator concerns:

## rustc drift warning at build time

Runners silently silo their cache when rustc versions differ across
peers (fingerprint depends on rustc verbose output). The pilot's
first flow burned a full cold+upload before we realized the silo.

- `PeerStatusReply.local_rustc_release` — new field, populated from
  the peer's own gossip `RUSTC_RELEASE` key via a new
  `ClusterGossip::self_kv(key)` accessor.
- `claw-cargo build`: on cache MISS, calls `PeerStatus`; if the
  peer's rustc release ≠ our local `rustc --version`, emits a WARN
  with both versions + hint to add `rust-toolchain.toml`.
- Best-effort: absence of either release string is a shrug, not
  an error.

## blob GC

Blob store grows unbounded on a runner; disk-full is a real
incident. `gc_orphan_chunks` already existed but wasn't exposed.

- New CLI: `claw-store cluster-gc` — runs `gc_orphan_chunks`,
  prints report. Safe to run any time, safe to interrupt.
- New config: `cluster.gc_interval_hours: Option<u64>`. When set to
  a positive integer, the daemon spawns a periodic ticker that
  invokes GC in-process. Skips the first tick (nothing to reclaim
  on boot). Errors are logged and retried next tick.
- Shutdown aborts the ticker cleanly.

254 tests pass (baseline unchanged). Pre-existing macOS failure
untouched.
2026-07-12 06:23:46 -07:00
Omar Sobh 523b22f148 Phase 5j: Prometheus /metrics endpoint
Adds a tiny axum-served HTTP endpoint that exposes the same
CacheMetrics counters that back GetMetrics + gossip, in Prometheus
text exposition format (v0.0.4). Enable per node by setting
`cluster.prom_bind` in the daemon config.

* metrics.rs: MetricsReply::to_prometheus() emits one HELP + TYPE +
  sample line per counter. started_unix is a gauge; everything else is
  a counter. Preallocates ~1 KiB so no reallocs mid-format.
* prom.rs (new): PromServer::bind spins up axum on a TcpListener,
  serves GET /metrics, returns 404 elsewhere. Graceful shutdown via
  oneshot channel; abort() variant for the sync-drop path in
  ClusterServices. Snapshots on every scrape (no cache) — Relaxed
  atomic loads are cheap enough that even 1 Hz is sub-microsecond.
* config.rs: new optional `cluster.prom_bind: SocketAddr` field.
  Default None means no server; typical value is 127.0.0.1:7702.
* services.rs: wires PromServer into ClusterServices when both a
  router and prom_bind exist. Warns (doesn't fail) if prom_bind is set
  without RPC — nothing would ever change on a scrape.

+8 tests:
- metrics: to_prometheus emits every counter with correct type; zeros
  still produce valid exposition (fresh daemon scrape)
- prom: content-type is text/plain; version=0.0.4; live updates
  between requests (no cache); unknown paths 404; shutdown stops
  serving
- services: end-to-end scrape returns router-driven counters;
  prom_addr() is None when unconfigured (no accidentally-leaked port)

Raw-TCP HTTP client in tests instead of pulling in reqwest — 30 lines
of tokio::net + string split for GET / read-to-close is small enough
to justify not adding a dep.

249 tests pass (+8 from Phase 5i). Pre-existing macOS `du -sb` failure
unchanged.
2026-07-12 04:36:34 -07:00
Omar Sobh f43b34ad15 Phase 2b: Blob RPC (Stat/Get/Put/LoadManifest)
Wires the Phase 2 content-addressed blob store onto the network via
four new methods on the existing RpcRouter. Combined with the mTLS +
gossip stack from Phase 1c-1e, peers can now exchange content-addressed
blobs over real QUIC. This is the substrate the fingerprint-keyed cargo
cache (Phase 5) sits on directly.

New methods:
- BlobStat        (0x03): payload = 32-byte BlobId, reply = JSON BlobStat
- BlobGet         (0x04): payload = 32-byte BlobId, reply = raw bytes
- BlobPut         (0x05): payload = raw bytes, reply = 32-byte BlobId
- BlobLoadManifest (0x06): payload = 32-byte BlobId, reply = JSON manifest

New error codes:
- NotFound (0xf3)      — the requested BlobId isn't in the local store
- InvalidRequest (0xf4) — e.g. non-32-byte payload for a hash-keyed method
- NotConfigured (0xf5) — Blob* called on a router without an attached store

Wire-format bump: MAX_MESSAGE_BYTES 16 KiB → 16 MiB so a single 4 MiB
chunk (plus JSON overhead) fits comfortably. Anything above 16 MiB
needs the streaming variants coming in Phase 2c.

Client helpers:
- call_blob_stat / call_blob_get / call_blob_put / call_blob_load_manifest
- All map ErrorCode::NotFound to Ok(None), other codes to Err.
- call_blob_put verifies the peer-assigned BlobId matches local blake3
  hash of the payload — corruption or protocol drift surfaces
  immediately instead of silently accepting a mismatched receipt.

Router changes:
- RpcRouter grows an Option<Arc<BlobStore>> via with_blob_store(store).
- handle() split into handle_outcome() → HandlerOutcome enum
  {Reply(bytes) | Error(ErrorCode)} for cleaner control flow across
  the growing method set.

Services / daemon:
- ClusterServices::start gains blob_store_root: Option<PathBuf>.
- ClusterConfig gains blob_store_root: Option<PathBuf>.
- daemon.rs reads it from cluster_cfg + passes through.
- New ClusterServices::blob_store_enabled() introspection.

Tests (11 new, all real — no mocks):

Router (7 new):
- method_round_trips_byte_encoding — updated for 6 methods
- error_code_describe_covers_all_variants — updated for 6 codes
- decode_error_covers_all_known_codes
- blob_rpcs_return_not_configured_without_store — all four Blob*
  methods return NotConfigured when the router lacks a store
- blob_stat_returns_not_found_for_missing
- blob_stat_returns_json_for_existing
- blob_stat_returns_invalid_request_for_bad_length
- blob_get_returns_content_bytes
- blob_put_stores_bytes_and_returns_hash — verifies BlobId matches
  independent local hash
- blob_load_manifest_returns_json_for_existing (2-chunk case)
- blob_load_manifest_returns_not_found_for_missing

End-to-end over real QUIC (2 new):
- end_to_end_blob_put_stat_get_over_real_quic — full 4-method loop
  (Put → Stat → Get → LoadManifest) + NotFound path
- end_to_end_multi_chunk_blob_over_real_quic — 6 MiB blob → 2 chunks,
  proves MAX_MESSAGE_BYTES bump took effect

Services (1 new):
- services_with_blob_store_serves_blob_rpc_end_to_end — cut CA, sign
  leaves, config includes blob_store_root, start ClusterServices,
  dial from B over persisted mTLS, put + get through the router,
  then independently verify bytes landed on A's on-disk store

Also fixed a parallel-test port collision: services `next_port()`
now increments by 2 so `port + 1` (the RPC bind) is reserved
alongside `port` (the gossip bind).

128 tests pass. Pre-existing macOS-only failure unchanged.

File sizes (all under 1300-line ceiling):
- cluster/rpc.rs: 1006
- cluster/services.rs: 535
- cluster/blob.rs: 802
- config.rs: 511
- daemon.rs: 265

Follow-on:
- 2c: streaming variants (AsyncRead/AsyncWrite) so a many-GB blob
  transfers without holding it in memory
- 2d: chunk-level RPC (BlobPutChunk / BlobGetChunk) so a receiver
  can request only chunks it's missing after LoadManifest
- Phase 5 (the killer feature) can now build on Phase 2b directly —
  fingerprint the target dir, PutBlob the compressed tarball, and
  next node calls GetBlob keyed by the same fingerprint hash.
2026-07-11 22:42:17 -07:00
Omar Sobh 916add37df Phase 1d: persistent NodeIdentity + FleetCa + fleet-ca CLI
Closes out Phase 1. A production operator can now cut a fleet CA,
sign per-node leaves, drop the resulting PEMs at
/etc/claw-store/tls/, point [cluster.tls] at them, and the daemon
loads real mTLS material on startup — no more ephemeral in-process
CA hack.

New public API in cluster::transport:
- FleetCa::generate(cn) — new self-signed root CA
- FleetCa::save(dir) / FleetCa::load(dir) — round-trip PEM
- FleetCa::sign_leaf(name) — mint an in-memory NodeIdentity
- FleetCa::sign_leaf_to_pem(name, out_dir) — write ca.crt + node.crt +
  node.key (node.key at 0o600 on Unix)
- NodeIdentity::from_pem_files(ca, cert, key) — production load path
- NodeIdentity::from_pem_dir(dir) — canonical filename layout
- NodeIdentity::from_cluster_config(cfg) — pick up [cluster.tls] paths

Manual Debug for FleetCa redacts the private key.

Config extension:
- [cluster.tls] ca_cert / node_cert / node_key (all PathBuf).
- Optional at the top level; callers that need mTLS surface a clear
  error when it's absent.

Deps:
- rcgen features += "x509-parser" (for FleetCa::load's from_ca_cert_pem).
- rustls-pemfile 2 (parse PEM back into DER for rustls).

CLI (new commands; short-circuit config load so they run on fresh
boxes without /etc/claw-store/config.toml):
- fleet-ca-init --dir <dir> [--cn <name>]
    generates ca.crt + ca.key (both 0o600).
- fleet-ca-sign --ca-dir <dir> --node <name> --out-dir <dir>
    writes ca.crt + node.crt + node.key (node.key at 0o600).
- cluster-ping now accepts --tls-dir <dir> to load persistent
  NodeIdentity from disk (produced by fleet-ca-sign).

Tests (8 new, all real — no mocks, real filesystem, real TLS handshake):
- fleet_ca_rejects_empty_common_name
- fleet_ca_save_and_load_round_trip_preserves_signing (asserts 0o600
  on ca.key)
- fleet_ca_load_errors_when_files_missing
- sign_leaf_to_pem_writes_all_three_files_with_correct_permissions
  (asserts 0o600 on node.key)
- persistent_identity_round_trips_through_disk_and_pings — end-to-end:
  cut CA on disk, reload it, sign two leaves via sign_leaf_to_pem,
  reload them via from_pem_dir, run real QUIC ping/pong. This is the
  operator flow.
- node_identity_from_cluster_config_errors_without_tls_section
- node_identity_from_cluster_config_loads_pem_paths
- from_pem_files_errors_on_missing_ca_file

80 tests pass. Pre-existing macOS-only hot test unchanged.

Also verified live CLI smoke test:
  fleet-ca-init → ca.crt + ca.key at 0o600
  fleet-ca-sign → ca.crt + node.crt + node.key at 0o600
  Files parse as valid X.509.

File sizes (all under 1300-line ceiling):
- cluster/transport.rs: 916
- cluster/gossip.rs: 576
- cluster.rs: 275
- config.rs: 503
- main.rs: 662

Phase 1 complete. Next up:
- Phase 1e (daemon integration): gossip + QUIC RPC server wired into
  claw-store daemon; hot-tier metrics periodically pushed; a real
  PeerStatus RPC alongside ping.
- Phase 2: content-addressed blob store (BLAKE3 chunking, put/get).
2026-07-11 22:04:54 -07:00
Omar Sobh 4d93f955c5 Phase 1c: QUIC transport with fleet-CA mTLS + cluster-ping
Wraps quinn 0.11 in cluster/transport.rs with rustls 0.23 + rcgen 0.13
for identity management. Every peer connection is mTLS: both sides must
present certs signed by the shared fleet CA, and rustls verifies the
peer's cert SAN matches the requested server name.

Public API on `cluster::transport`:
- `NodeIdentity` (cert chain + private key + trusted CA)
- `NodeIdentity::generate_test_pair(a, b)` — ephemeral CA + two signed
  leaves; shape matches the production PEM-file loader (Phase 1d)
- `QuicServer::bind(addr, identity)` — bind mTLS-enforced listener
- `QuicServer::accept()` — accept one connection (Option<Result<_>>)
- `QuicClient::new(local_addr, identity)` — build client endpoint
- `QuicClient::connect(peer_addr, expected_name)` — outbound with SAN check
- `ping(&conn, payload)` — bidi stream RPC; server echoes as `pong:<payload>`
- `ping_handler_loop(conn)` — server-side accept/echo forever
- `CLAWSTOR_RPC_ALPN` constant, single ALPN "clawstor-rpc/1"

Config extension:
- `bind_rpc_lan`, `bind_rpc_tailscale` on `ClusterConfig` (both optional).
- Defaults: gossip port + 1 (so gossip UDP and QUIC UDP don't collide).
- Helper: `ClusterConfig::rpc_lan()`, `rpc_tailscale()`,
  `PeerEntry::rpc_lan()`, `rpc_tailscale()`.

Gossip.rs now advertises the RPC address, not the gossip address, on
the well-known `clawstor.rpc.lan` / `clawstor.rpc.tailscale` keys.

CLI:
- `cluster-ping --name <me> --peer <you> --rpc-addr <addr> [--payload X]`
  Runs a full mTLS handshake and single ping. For dev/loopback use
  today (both sides need to share a CA); persistent-identity ping
  lands in Phase 1d.

Tests (6 new, real UDP + TLS handshake, no mocks):
- generate_test_pair produces two distinct leaves that share a CA
- ping_pong_between_two_mtls_peers: real 2-node QUIC round trip with
  full mTLS chain verification, `open_bi()`/`accept_bi()`, byte-exact
  response check
- client_rejects_peer_with_wrong_ca: TLS chain verification failure
  when the server presents a cert signed by a different CA
- client_rejects_wrong_server_name: SAN mismatch is enforced
- server_binds_wildcard_and_reports_concrete_local_addr: port 0 → real
- ping_rejects_oversize_payload: MAX_MESSAGE_BYTES cap enforced client-side

Fixed-port allocator range 42000+ so transport tests don't conflict
with gossip tests (41000+).

72 tests pass. Pre-existing `hot::test_project_target_size_bytes`
macOS-only failure unchanged.

File sizes (all under 1300-line ceiling):
- cluster/transport.rs: 485
- cluster/gossip.rs: 570
- cluster.rs: 275
- config.rs: 480
- main.rs: 564

Follow-on Phase 1 cut (1d):
- Load NodeIdentity from persistent PEM files at /etc/claw-store/tls/
- Fleet CA bootstrap ceremony (rcgen → write CA cert; per-node leaf CSR)
- Daemon-level RPC server that runs alongside gossip + serves real
  operations (blob get/put, metadata sync)
- cluster-status reads from live daemon via API instead of standalone
2026-07-11 21:50:28 -07:00
Omar Sobh 5c19c60292 Phase 1a: cluster module + LAN-first peer probe
First cut of the v2 distributed FS. Captures the architecture design
in ARCHITECTURE-v2.md and lands the smallest useful new capability:
probing cluster peers with a LAN-first policy so subsequent transport
+ gossip layers (Phase 1b, 1c) can build on a real routing decision.

New:
- ARCHITECTURE-v2.md: zones (fabric-10g/lan-1g/roaming), tier
  lifecycle (hot/warm/cold), fingerprint-keyed build cache design,
  smart-clean policy, phase plan, explicit non-goals.
- claw-store/src/cluster.rs: RouteKind, RouteWinner, LanFirstProbe.
  LAN 200ms timeout, Tailscale 500ms fallback. 8 tests use real
  TCP listeners on 127.0.0.1 (no mocks); cover happy path,
  fall-through, both-fail, single-address, and elapsed reporting.
- claw-store/src/config.rs: ClusterConfig + PeerEntry with
  validation (bind-address presence, no duplicate peer names,
  per-peer reachable address required). Optional at top level so
  pre-v2 configs still load unchanged. 6 new tests.
- claw-store/src/main.rs: `claw-store cluster-probe <peer>` CLI
  subcommand that reads config, resolves the peer, probes, prints
  the winning route + elapsed time.

All 16 new tests pass. Existing 45 pass. Sole failure
(hot::tests::test_project_target_size_bytes) is a pre-existing
macOS-only issue with `du -sb`; Linux CI unaffected.

Follow-on Phase 1 cuts (subsequent sessions):
- 1b: chitchat SWIM gossip for live membership state
- 1c: quinn QUIC transport with fleet-CA mTLS
- 1d: `claw-store cluster status` — live membership view

Every file well under the 1300-line ceiling
(cluster.rs 268, config.rs 428, main.rs 450).
2026-07-11 21:30:50 -07:00
Omar SobhandClaude Sonnet 4.6 1b1d66eac9 feat(v0.3.0): weekly snapshots, incremental replication, auth, uptime, hardening
- snapshot: implement weekly ZFS snapshots (Sunday midnight, retain_weekly config)
- snapshot: incremental cold replication via zfs send -i; tracks last replicated
  snapshot in /var/lib/claw-store/last-replicated-snapshot
- daemon: write start-time file for uptime reporting; add SIGTERM graceful shutdown
- serve: daemon_uptime_secs now reads the start-time file (was hardcoded 0)
- serve: validate project names in POST handlers (org/repo slug, no traversal)
- serve: Bearer token auth middleware on all POST endpoints via cfg.api_token
- config: add optional api_token field (backward compatible, defaults to None)
- sync: add SSH timeouts (ConnectTimeout=10, ServerAliveInterval=5) to peer notify
- hot/sync/main: replace unwrap() on path-to-str with proper anyhow errors
- config/tank.toml: document 10G fabric IP and nightly_at field intent
- .gitignore: exclude compiled dashboard assets (claw-store/static/)
- Makefile: add build, install, install-systemd, install-dashboard, deploy targets
- tests: 29 passing (up from 25); 4 new weekly snapshot tests

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-06-30 10:41:20 +00:00
Omar SobhandClaude Sonnet 4.6 a9c12173fe feat: activate/deactivate/list/sync/pull commands + peer sync queue
- activate <org/repo>: wire hot tier, write .cargo/config.toml, register
- deactivate <org/repo>: auto-sync to peer, evict hot tier, unregister
- list: show all warm repos with activation status and last-active time
- sync <org/repo>: git push origin then SSH peer to pull
- pull <org/repo>: git pull from origin, stamp last_sync in manifest
- SyncQueue: file-based retry queue (/var/lib/claw-store/sync-queue.toml)
- daemon: drains sync queue on every 5-min poll tick
- config: [peer] host/user for cross-node notification
- manifest: Project.name is now org/repo, adds last_sync field
- hot tier paths are org/repo-namespaced to avoid collisions

Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-06-16 11:45:04 +00:00
Omar SobhandClaude Sonnet 4.6 8ab3bb2d12 feat: config types and loader
Co-Authored-By: Claude Sonnet 4.6 <[email protected]>
2026-06-16 03:49:25 +00:00