stapel-vault 0.1.3

Production secret storage for the Stapel framework — OpenBao/HashiCorp Vault behind the stapel-core secret-provider seam

stapel-vault

Production secret storage for the Stapel framework. A facade over secret backends behind the stapel_core.secrets provider seam — the first backend is OpenBao / HashiCorp Vault (KV v2; their HTTP APIs are compatible, so one client speaks to both).

Local dev and the minimal preset keep reading secrets from the environment (stapel-core's default provider). In production, where env for secrets is unacceptable, point the seam at stapel-vault and the framework reads SECRET_KEY, JWT_SECRET_KEY, database passwords and LLM pool keys from Vault instead — with no change to the code that consumes them.

Install

pip install stapel-vault      # requires stapel-core with the SecretProvider seam

Wire it up

The provider is selected at settings-bootstrap time (production settings resolve SECRET_KEY before django.setup()), via environment — which is also where Vault's own connection/auth config belongs:

# control plane only — never a workload container (see MODULE.md, S1)
export STAPEL_SECRETS_PROVIDER=stapel_vault.VaultSecretProvider
export VAULT_ADDR=https://vault.internal:8200
export VAULT_K8S_ROLE=stapel-web       # Kubernetes auth (phase 2)

Then any stapel_core.secrets.get_secret("DJANGO_SECRET_KEY") — including the SECRET_KEY / JWT_SECRET_KEY reads in stapel_core.django.settings — comes from Vault. A missing secret is a hard, loud boot failure (fail_closed), not a silent None.

Secret layout (default convention)

A service's secrets are keys of one KV v2 secret (the "bundle") at secret/data/<prefix>/<app> (defaults secret/data/stapel/app):

bao kv put secret/stapel/app \
    DJANGO_SECRET_KEY=... JWT_SECRET_KEY=... POSTGRES_PASSWORD=...

DJANGO_SECRET_KEY then resolves to GET v1/secret/data/stapel/app → .data.data["DJANGO_SECRET_KEY"]. Override per name with VAULT_SECRET_MAP (JSON). See MODULE.md for the full config reference, auth methods, rotation, and the deploy-mode map.

Auth methods

Method	When	Config
token	local/dev	VAULT_TOKEN
kubernetes	prod on k8s (phase 2)	VAULT_K8S_ROLE (+ projected SA JWT)
approle	prod, non-k8s	VAULT_ROLE_ID + VAULT_SECRET_ID

Auto-detected from what is present, or forced with VAULT_AUTH_METHOD.

License

MIT — see LICENSE.