Ping QiuandClaude Opus 4.6 531ee764ee feat: Phase 5 CP5-3 -- CHAP auth, online resize, Prometheus metrics, 12 tests ...

CHAP authentication (RFC 7143 S12.1):
- auth.go: CHAPAuthenticator with MD5 challenge-response, ValidateCHAPConfig
- login.go: multi-PDU SecurityNeg flow (challenge → verify → transit)
- main.go: -chap-user/-chap-secret CLI flags with validation

Online volume expand:
- blockvol.go: Expand() with flusher pause, snapMu TOCTOU guard, alignment check
- Rejects shrink (ErrShrinkNotSupported) and resize with active snapshots

Prometheus metrics:
- metrics.go: metricsAdapter wrapping BlockDevice, 15 metrics (counters,
  histograms, gauge funcs for WAL/dirty-map/epoch/role/snapshots)
- Dedicated prometheus.NewRegistry() per server instance

Admin HTTP endpoints:
- POST /snapshot (create/delete/restore/list)
- POST /resize (online expand)
- GET /metrics (Prometheus text format)
- VolumeSize added to /status response

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-03 01:43:42 -08:00

..

sw-block/phases

feat: Phase 5 CP5-3 -- CHAP auth, online resize, Prometheus metrics, 12 tests

2026-03-03 01:43:42 -08:00