theta-suite/docs/secrets.md

layout, title, description

layout	title	description
default	Secrets (OpenBao)	theta-suite's central secrets architecture — OpenBao as the single store for all app, per-user, and external-app secrets, with scoped tokens and policies.

Secrets — OpenBao as the central store

theta-suite keeps every secret in one place: OpenBao (a Vault-community fork), running on the theta-net docker network at http://openbao:8200. The three apps (SSO Manager, proxy, jump host) load their boot secrets from it; end users get personal per-user secret storage through the SSO UI; and external apps get scoped, self-contained access to their own namespace.

This page is the operator reference. For the package API, see @simpleworkjs/bao-conf.

Why a central store

Before this, secret handling was partial and inconsistent: only the SSO read one path from OpenBao; the proxy and jump host read bind-mounted ./config/*-secrets.js files; the bootstrap wrote generated OAuth creds to those files on disk; and the SSO /api/vault UI was an ungated, broken pass-through. Centralising on OpenBao gives every app the same fail-soft load path, makes per-user secret storage possible, and lets external apps get least-privilege access without anyone handing them the root token.

The load path (every app)

1. @simpleworkjs/conf synchronously loads the bind-mounted ./config/<app>-secrets.js at require time — the file is the operator-edit layer and the fail-soft fallback.
2. @simpleworkjs/bao-conf's init({ path: '<app>', conf }) deep-merges secret/data/<app>/conf from OpenBao over the live conf object. It is fail-soft: if OpenBao is unreachable or the path is absent, boot continues with the file-loaded config.
3. A few secrets are captured at require time (notably the OIDC clientSecret, consumed inside createOidcClient during require('../models')). So init() must resolve before that require(). Each app's bin/www handles this:
   • proxy — defers require('../app') (which transitively loads models) behind bao-conf.init().
   • jump host — gates the explicit require('../models') behind bao-conf.init().
   • SSO — swaps the old conf_manager.init() call (same position in its existing .then() boot chain) for bao-conf.init(); nothing in the SSO captures a secret at require time, so no reordering was needed.

VAULT_TOKEN (a scoped per-app token, not the root token) and VAULT_ADDR=http://openbao:8200 are passed to each container via docker-compose.yml. The ./config/*-secrets.js mounts stay as the fallback.

Policies, token role, and tokens

setup.sh creates the ACL policies and mints the per-app tokens (idempotently — re-running keeps existing tokens and re-mints only expired ones). The root token stays in .env for setup/maintenance only and is never passed to a service container.

Policy	Capabilities	Held by
sso-broker	read/write secret/sso-manager/conf, secret/users/*, secret/apps/*, secret/plugins/*; update on auth/token/create/sso-broker; update on sys/policies/acl/user-*, app-*, sso-admin	SSO (SSO_VAULT_TOKEN)
sso-admin	read/write/list all of secret/*	admin UI sessions (minted by the broker)
proxy	read secret/proxy/conf	proxy (PROXY_VAULT_TOKEN)
jump-host	read secret/jump-host/conf	jump host (JUMP_VAULT_TOKEN)
user-<uid>	read/write secret/users/<uid>/*	per-user tokens (minted lazily by the broker)
app-<name>	read/write secret/apps/<name>/*	per-external-app tokens (minted by an admin)

Token role sso-broker — allowed_policies=sso-admin, allowed_policies_glob=user-*,app-*, orphan, renewable, token_period=24h. The SSO mints per-user, per-admin, and per-app tokens through this role at runtime, so it never needs the root token to issue scoped access.

The three per-app tokens (SSO_VAULT_TOKEN, PROXY_VAULT_TOKEN, JUMP_VAULT_TOKEN) are minted orphan + renewable and stored in ./.env by setup.sh. They use OpenBao's default service-token TTL; if one expires, re-run ./setup.sh and the ensure_token helper re-mints it (the old one expires on its own). Automated renewal is a planned follow-up, not yet built.

Seeding

setup.sh seeds, on first run only (skipped if the path already exists):

• secret/sso-manager/conf — from ./config/sso-secrets.js (operator-set LDAP/SMTP/jwtSecret; the SSO has no bootstrap-generated creds, so the file is the complete source of truth).
• secret/proxy/conf — from ./config/proxy-secrets.js (placeholder OAuth creds at this point).
• secret/jump-host/conf — from ./config/jump-secrets.js after the bootstrap writes it.

The bootstrap (bootstrap/bootstrap.js) then generates the real OAuth client credentials and writes the complete proxy-secrets.js and jump-secrets.js objects into secret/proxy/conf and secret/jump-host/conf (POST, replacing the placeholder seed). After the first run, OpenBao is authoritative; the ./config/*-secrets.js files are operator-edit seed artifacts and the fail-soft fallback.

End-user personal secrets

Every logged-in user has a personal namespace secret/users/<uid>/*, reached through the SSO UI at Vault → My Secrets. The SSO mints a user-<uid> token on first access (cached in Redis for the token's lifetime) and proxies /api/vault to OpenBao with that token injected server-side — the client's SSO session token never reaches OpenBao.

• Non-admins see only their own namespace; the UI fixes the path prefix to users/<uid>/. They can list, read, write, and delete secrets there.
• Admins (app_sso_admin / app_super_admin) get free-form access across all of secret/ plus an Apps tab (see below).

Scoping is enforced at two layers: the SSO's scopeGuard rejects any path outside the subject's prefix with a 403 (defense-in-depth), and the token's own OpenBao policy enforces the same at the API layer.

External apps

An external (non-theta42) app gets scoped access to its own namespace, secret/apps/<name>/*, via a token an admin mints once from the SSO UI's Vault → Apps tab. The token is shown once (copy it immediately; it is not stored retrievably) and confined by an app-<name> policy.

Convention:

• secret/apps/<name>/conf for config-style secrets, secret/apps/<name>/* for arbitrary keys.
• The app authenticates with the header X-Vault-Token: <minted token> against http://<openbao-host>:8200/v1/secret/data/apps/<name>/....

Non-Node consumers (curl):

VAULT_ADDR=http://openbao:8200   # or your external-facing openbao address
# Write
curl -X POST "$VAULT_ADDR/v1/secret/data/apps/my-service/conf" \
  -H "X-Vault-Token: <token>" -H "Content-Type: application/json" \
  -d '{"data":{"db_password":"..."}}'
# Read
curl -s "$VAULT_ADDR/v1/secret/data/apps/my-service/conf" \
  -H "X-Vault-Token: <token>" | jq .data.data

Node consumers can use @simpleworkjs/bao-conf directly:

const baoConf = require('@simpleworkjs/bao-conf');
const data = await baoConf.get('apps/my-service/conf'); // secret/data/apps/my-service/conf
await baoConf.set('apps/my-service/conf', { db_password: '...' });

Plugin secrets

The SSO Manager's plugin system (configurable plugin instances you create, edit, load/unload, and run from the Plugins page) stores each instance's secrets in its own OpenBao namespace, secret/plugins/<instance-id>/conf, rather than in the static sso-secrets.js discovery.plugins block. The SSO reads and writes these server-side through the sso-broker token (the plugin runs in-process as a BullMQ worker, so it needs no token of its own), and the admin UI only ever sees masked (********) values.

• A plugin type is a module under nodejs/plugins/<category>/<type>.js exporting a manifest (configSchema declares which fields are secret).
• A plugin instance is a configured, loadable/unloadable copy of a type, tracked in the PluginInstance table; you can have multiple instances of the same type (e.g. two Proxmox endpoints with their own tokens).
• Non-secret config lives in the DB row; only the secret:true field values live in secret/plugins/<instance-id>/conf.

Deleting an instance removes both the DB row and its secret/plugins/<id>/* namespace. Legacy discovery.plugins entries in sso-secrets.js are migrated to instances automatically on the first boot of SSO Manager ≥ v1.17.0 (the secret fields are copied into OpenBao at that point). See the SSO Manager plugins docs for the UI/API reference.

Operator rotation

If a secret is exposed (or just on a routine schedule), rotate it at the provider first (the LDAP server, the SMTP host, the OAuth jwtSecret, etc.), then update OpenBao:

# Read the current sso-manager conf
docker exec -e BAO_TOKEN="$VAULT_TOKEN" openbao bao kv get secret/sso-manager/conf
# Write a new value (KV-v2 POST replaces the data; merge carefully)
docker exec -e BAO_TOKEN="$VAULT_TOKEN" openbao bao kv put secret/sso-manager/conf \
  ldap.bindPassword='<new>' smtp.password='<new>' oauth.jwtSecret='<new>'

Then restart the affected app so bao-conf.init() re-reads it (docker compose restart sso-manager). Call-time readers pick up the change on next read; require-time captures (OIDC clientSecret) need the restart.

The SSO admin Configuration UI (/api/conf) writes secret/sso-manager/conf and updates the live conf immediately, so SMTP/discovery/oauth edits made there don't need a manual bao kv put.

Backups

The OpenBao data volume openbao-data holds every secret. Back it up with the rest of the stack (see the README's Backups and restore section). The ./config/*-secrets.js files are not a complete secret backup once OpenBao is authoritative — they're the first-run seed and the fallback. A full disaster recovery restores both the openbao-data volume (the authoritative store) and ./config/ (the seed/fallback), then runs ./setup.sh to unseal OpenBao and re-mint the per-app tokens.

What's not in scope yet

• Renewal automation — per-app/user tokens use OpenBao's default TTL and are re-minted by setup.sh on expiry; a periodic renewal worker is a follow-up.
• History scrubbing — if a secret was committed to git, rotating it is the fix; scrubbing it from git history (BFG / git filter-repo) is a separate, git-destructive operation you can opt into.
• Per-app secrets beyond boot config (e.g. the proxy's DNS-provider creds, the jump host's per-user LDAP SSH keys) moving into OpenBao — only the boot-critical *-secrets.js contents moved in this phase. (Plugin instance secrets are in OpenBao, at secret/plugins/<id>/conf — see above.)