v0.3.0

Release notes — minio-aiops 0.3.0

Previous release: 0.2.1.

Fixed: only one of MinIO's three metrics endpoints was being scraped

MinIO splits its Prometheus exposition across /cluster, /node and /bucket, and
the metric names do not overlap. This package consumes 30 metric names and 12 of
them are absent from /cluster — every minio_node_drive_* (per-drive capacity),
every minio_heal_*, and every minio_bucket_usage_*.

The practical effect on a real server: heal drives returned an empty list, and
per-bucket capacity readers saw nothing. Confirmed against a live 4-drive erasure set.

metrics() now merges /cluster + /node (both required) and /bucket
(best-effort — some deployments disable it, and it is the expensive scrape on a
server with many buckets).

Fixed: drive_status reported a broken scrape as "no drives"

It caught every exception and returned [], so a failed metrics scrape was
indistinguishable from a healthy server with nothing to report. That is how the
bug above stayed invisible for the life of the tool.

BREAKING — drive_status now returns an envelope instead of a bare list:
{"drives": [...], "returned": N, "error": str | None}. A non-null error means
the scrape failed; do not read an empty list as "healthy, nothing to see".

Also

• Byte and object counts are integers again. Prometheus is float-typed on the wire,
  so these rendered as 1500000.0 / 3.0; absent values stay null rather than
  becoming 0.
• bucket_exposure_audit findings now carry an explicit 1-based rank. They were
  already ordered worst-first by riskScore; the priority is now stated in the
  payload instead of left implicit in list position.

Live-verified

Against a real 4-drive erasure set: the erasure-set analysis correctly reported
LOW_FAILURE_TOLERANCE (write quorum 3 of 4 — only one more drive may fail), the
exposure audit correctly scored an anonymously-writable bucket high, and the
governance loop (set_versioning → undo_apply restoring Suspended) closed on
the live server. See docs/VERIFICATION.md — multi-node
MinIO and real healing remain unverified.