README covers the pitch and how this differs from Vault/Doppler (too heavy) and a static age/sops-encrypted file in git (no live rotation, no access log). IMPLEMENTATION covers the multi-recipient key-wrapping scheme (age/sops-style, adapted to libsodium primitives already used in flit/waste-go), the flat vault/recipient/grant/access-log schema, rotation and revocation semantics (including the standard "revoke doesn't retroactively unread already-decrypted secrets" caveat), CLI surface, and deploy-script integration. Motivated by a real, already-felt annoyance: every repo in this project family (goonk, wisp, npm-statuspage, flit, waste-go) has its own hand-copied .env today, with no rotation story and no record of which machine has which secret. No code yet — design stage. Admin auth mechanism flagged as needing a decision before implementation starts. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
78 lines
3.6 KiB
Markdown
78 lines
3.6 KiB
Markdown
# keep
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A self-hosted, end-to-end encrypted secrets store for deploy scripts.
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`keep pull wisp/production` gets you a `.env`-shaped bundle of secrets,
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decrypted locally — the server never sees plaintext values, and never
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sees the key that would let it.
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## Why
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Across this project family — `goonk`, `wisp`, `npm-statuspage`, `flit`,
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`waste-go` — every repo has its own `.env`/`.env.example` pair, and every
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one of those `.env` files exists today by being hand-copied onto whatever
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machine needs it. That's a real, already-felt annoyance, not a
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hypothetical one:
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- Rotating a credential means finding and updating every machine that has
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a copy, by hand.
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- There's no record of which machine has which secret, or when it was
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last updated.
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- Onboarding a new deploy target means manually reconstructing a `.env`
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from memory, a password manager note, or asking "hey, what's the value
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for X."
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`keep` is a small always-on service that holds encrypted secret bundles
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and lets authorized machines/people pull them, decrypted locally, without
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ever exposing plaintext to the server in between.
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## What it isn't
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- **Not Vault or Doppler.** Those are the established, heavier answers —
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full policy engines, dynamic secrets, enterprise everything. `keep` is
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the "already-solved problem, but self-hosted and scoped to what this
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actually needs" answer, closer in spirit to `age`/`sops` (multi-recipient
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encrypted files) than to a full secrets-management platform.
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- **Not a static encrypted file committed to git**, which is what
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`age`/`sops` typically produce. `keep` exists specifically for the two
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things a committed encrypted file can't give you without re-running a
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tool and re-committing: **live rotation** (push once, everyone with
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access can pull the update) and **an access log** (who/what actually
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fetched a secret bundle, and when — a git history shows content
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changes, not access).
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- **Not wisp.** wisp is ephemeral and single-retrieval by design — the
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opposite of what a secret needs to be. A deploy script needs to fetch
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the same bundle on every deploy, not once and then have it vanish.
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## Core model
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Adapts the pattern `age`/`sops`/PGP already use for multi-recipient
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encrypted files — a symmetric key encrypts the actual payload, and that
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symmetric key is separately "wrapped" (encrypted) once per authorized
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recipient's public key — into a live service instead of a static file:
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1. Each client (a developer's machine, a deploy script running on a VPS)
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has its own Ed25519/X25519 keypair — same identity model already
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built twice over in `flit` and `waste-go`.
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2. A vault (`wisp/production`, `goonk/production`, whatever key) holds one
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encrypted blob — the actual secret bundle, encrypted under a random
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symmetric key.
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3. That symmetric key is wrapped separately for every recipient granted
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access to that vault. The server stores N small wrapped-key blobs, one
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per recipient, alongside the one encrypted payload.
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4. `keep pull <vault>` fetches the payload plus this identity's wrapped
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key, unwraps locally with the private key, decrypts, and prints (or
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writes) the `.env`-shaped result.
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5. Revoking a recipient's access is deleting their one wrapped-key row —
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the payload and every other recipient's access are untouched.
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6. Rotating a secret is `keep push <vault>` again — a new random
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symmetric key, re-wrapped for every currently-granted recipient. Cheap,
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since the recipient list rarely changes.
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Full design — data model, the atomic-grant/revoke details, the CLI
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surface, and what this explicitly does and doesn't protect against — is
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in [IMPLEMENTATION.md](./IMPLEMENTATION.md).
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## Status
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Design only. No code yet.
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