Ceph AIops (preview)

Disclaimer: Community-maintained open-source project. Not affiliated with, endorsed by, or sponsored by the Ceph project or any storage vendor. Product and trademark names belong to their owners. MIT licensed.

Governed AI-ops for Ceph — talks to a vanilla ceph-mgr Dashboard REST API (HTTPS :8443, username + password exchanged for a short-lived JWT at POST /api/auth) with a built-in governance harness: unified audit log, policy engine, token/runaway budget guard, undo-token recording, and graduated-autonomy risk tiers. Works against stock ceph-mgr — cephadm, hypervisor-bundled Ceph, or MicroCeph — with no croit and no Kubernetes dependency. Self-contained: no external skill-family dependency. Preview — mock-validated only, not yet verified against a live cluster.

What it does

The flagship analysis, plus the guarded reads and writes around it:

• cluster_health — HEALTH_WARN/ERR root-cause analysis. Instead of echoing raw check codes (PG_DEGRADED, OSD_NEARFULL, SLOW_OPS, MON_DOWN, LARGE_OMAP_OBJECTS, …), it turns each active check into plain language: what it means, the likely cause, and the suggested next action. This is the differentiator vs the hobby Ceph MCPs that just proxy ceph -s.

• Governed destructive ops. The operations operators actually fear — osd_purge, pool_delete, set_pool_size, rbd_image_delete — carry dry-run + double-confirm and a high risk tier; reversible tuning (osd_reweight, throttle_recovery, cluster_flag_set, pool quota/pg_num/ autoscale) records an undo descriptor capturing the prior state.

Related MCP server: Lumino

What works

• CLI (ceph-aiops ...): init, overview, health detail/health status, osd tree/df/reweight/out/purge, secret set/list/rm/migrate/rotate-password, doctor, mcp. osd out and osd purge require --dry-run + double confirm.

• MCP server (ceph-aiops mcp or ceph-aiops-mcp): the full 35 tools (17 read, 18 write), every one wrapped with the bundled @governed_tool harness. The CLI is a convenience subset; the MCP surface is the whole tool.

• Encrypted credentials: the Dashboard password lives in an encrypted store ~/.ceph-aiops/secrets.enc (Fernet + scrypt) — never plaintext on disk. Unlock with a master password from CEPH_AIOPS_MASTER_PASSWORD (MCP/CI) or an interactive prompt (CLI).

• Reversibility: reversible writes capture the prior state and record an inverse undo descriptor (e.g. osd_reweight → prior weight, set_pool_quota → prior quota, throttle_recovery → prior backfill/recovery settings).

• Safety: destructive ops (osd_purge, osd_mark_out, pool_delete, set_pool_size, rbd_image_delete, rbd_snapshot_delete) are high risk with dry_run and CLI double confirmation.

Capability matrix (35 MCP tools)

Totals: 35 tools — 17 read, 18 write.

Quick start

uv tool install ceph-aiops          # or: pipx install ceph-aiops
ceph-aiops init                     # wizard: add a mgr target + store the Dashboard password (encrypted)
ceph-aiops doctor                   # JWT login + mgr-dashboard reachability
ceph-aiops overview                 # HEALTH status + active checks + OSD up/in
ceph-aiops health detail            # decode the active HEALTH_WARN/ERR checks (RCA)
ceph-aiops osd df                   # per-OSD utilization, most-full first, near/backfill-full flags

Run as an MCP server (stdio):

export CEPH_AIOPS_MASTER_PASSWORD=...   # unlock secrets non-interactively
ceph-aiops-mcp

Governance

Every MCP tool passes through the bundled @governed_tool harness:

• Audit — every call (params, result, status, duration, risk tier, approver, rationale) is logged to ~/.ceph-aiops/audit.db (relocatable via CEPH_AIOPS_HOME).

• Budget / runaway guard — token and call budgets trip a circuit breaker.

• Risk tiers — graduated autonomy; high-risk ops (purge/delete/replica change) can require a named approver (CEPH_AUDIT_APPROVED_BY / CEPH_AUDIT_RATIONALE).

• Undo recording — reversible writes record an inverse descriptor.

Supported scope & limitations

• Deployments: vanilla ceph-mgr with the dashboard module enabled — cephadm, hypervisor-bundled Ceph, or MicroCeph. No croit, no Kubernetes dependency.

• Ceph has no ETag / pagination on the Dashboard API, so this tool exposes none — nothing is missing, the upstream API simply doesn't offer them.

• Preview / mock-only. Behaviour is validated against mocked Dashboard responses. The cheapest live check is a single-node MicroCeph (snap install microceph → bootstrap → loop-file OSDs) running ceph-aiops doctor; a 3-node Vagrant cluster exercises real rebalance behaviour. Multi-node rebalance and the write ops are unverified against a real cluster.

Missing a capability?

RGW multisite, per-daemon config sprawl, NFS-Ganesha exports, orchestrator (cephadm) host management — not here yet. Open an issue or send a PR — feedback and contributions are welcome.