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terraform-vault/policies/gpg/admin.yaml
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unkinben ce1185deba
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Grant vault deployer access to import + manage the gpg engine (#88)
## Why
Applying the gpg mount (#87) needs two grants the deployer (`tf_vault` approle / `woodpecker_terraform_vault` k8s role) doesn't have. terraform-vault **registers the plugin itself** (`vault_plugin` → `sys/plugins/catalog`, a sudo-protected path) and **manages keys** via the gpgvaultsecret provider (`gpg/keys/*`). The deployer already has `sys/mounts/*` but neither of these, so apply would 403 on the plugin registration and on `gpg/keys` writes — the same failure mode as #84.

## Changes
- Add `policies/gpg/admin.yaml` granting:
  - `create/read/update/delete/sudo` on `sys/plugins/catalog/secret/vault-plugin-secrets-gpg` — to **import** (register/deregister) the plugin.
  - full management of `gpg/keys/*` (+ `gpg/keys` list) — to **manage keys**.
  - assigned to `tf_vault` (approle) + `woodpecker_terraform_vault` (k8s/au/syd1), mirroring `policies/litellm/admin.yaml` (#84).

Should merge/apply **before** #87 so the deployer can register the plugin and create the `pass` key.

Reviewed-on: #88
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-07-17 23:09:31 +10:00

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YAML

# Allow the vault deployer to import the gpg plugin and manage its OpenPGP keys.
#
# terraform-vault registers the plugin itself (vault_plugin -> sys/plugins/catalog,
# a sudo-protected path) and manages keys via the gpgvaultsecret provider, so the
# deployer needs catalog access on top of the mount access it already has
# (sys/mounts/*). Without this, apply 403s on the plugin registration and on
# gpg/keys writes.
---
rules:
# Import / register (and deregister) the gpg plugin in the catalog.
- path: "sys/plugins/catalog/secret/vault-plugin-secrets-gpg"
capabilities:
- create
- read
- update
- delete
- sudo
# Manage keys (create/rotate/config/delete) in the gpg mount.
- path: "gpg/keys/*"
capabilities:
- create
- read
- update
- delete
- list
- path: "gpg/keys"
capabilities:
- read
- list
auth:
approle:
- tf_vault
k8s/au/syd1:
- woodpecker_terraform_vault