azure-backup-readiness

Audits Azure backup coverage at a resource group scope. Vault-type aware.

When to use

• threadlight v0.5.4 needs to flip BAK-401 from kind: manual to kind: sibling-skill — this skill's probe() is the sibling.
• Pre-pilot review: confirm a candidate Foundry RG has at least one vault with protected items before a customer pilot.
• Spoke landing-zone check: detect RGs that have an RSV / Backup Vault resource but no policies attached.

Probing an RG

from azure_backup_readiness.probe import probe

result = probe(
    subscription_id="<sub-id>",
    resource_group="<rg>",
    # protected_item_types=["VM", "SQLDataBase"],  # optional REL-007 filter
)
# result["vaults"]                         → list of {kind, name, id, protected_item_count}
# result["summary"]["total_vaults"]        → int
# result["summary"]["rsv_count"]           → int  (RSV count)
# result["summary"]["bv_count"]            → int  (BackupVault count)
# result["summary"]["total_protected_items"] → int  (sum across vaults, after type filter)
# result["summary"]["protected_item_types_filter"] → list[str] | None (echo of applied filter)
# result["summary"]["confidence"]          → 0.0..1.0
# result["summary"]["probe_error"]         → str | None
# result["findings"]                       → list of typed findings
# result["manifest_path"]                  → path to JSON manifest on disk

protected_item_types (the REL-007 sibling-contract input) is an optional list of workload/datasource type tokens. When provided, only protected items whose type matches one of the tokens (case-insensitive substring) count toward total_protected_items / per-vault protected_item_count. When omitted (default), every protected item counts. The applied filter is echoed back in summary.protected_item_types_filter.

The probe never raises. If one vault API denies (e.g. RSV is forbidden but Backup Vault works), the probe still completes and returns confidence: 0.5. If both deny, returns confidence: 0.0 and probe_error populated.

MUST: Copy verbatim from references/python/probe.py. Do NOT redefine inline — the validator enforces single-source-of-truth.

Vault-type awareness (decision)

Per spec §4.4 Q-D1 (locked decision), this skill probes both Recovery Services Vaults and Backup Vaults. These are two distinct Azure backup surfaces:

A Foundry RG may have neither, one, or both. The probe doesn't prefer either — both are reported in result["vaults"] with their kind field set accordingly.

CLI

python -m azure_backup_readiness --sub <sub-id> --rg <rg>
# optional REL-007 type filter:
python -m azure_backup_readiness --sub <sub-id> --rg <rg> --protected-item-types VM SQLDataBase

Outputs JSON to stdout AND writes the same content to out/<finding-id>.json. Override via AZURE_BACKUP_READINESS_OUT=<path>.

Auth

Uses DefaultAzureCredential. Caller needs at minimum Backup Reader at the RG scope (built-in role). Without it, the probe returns a shape with probe_error populated rather than raising.

See also

• azure-resource-diagnostics — peer skill for diagnostic settings audit.
• foundry-rbac-audit — peer skill for RBAC posture audit.
• azure-monitor-alert-baseline — peer skill for alert coverage audit.