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Ping QiuandClaude Opus 4.6
531ee764ee
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>