Files
terraform-vault/environments/root.hcl
T
unkinben 933de177fa
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Register + mount the GPG secrets engine at gpg/ (#87)
Complete the deploy of the [vault-plugin-secrets-gpg](https://git.unkin.net/unkin/vault-plugin-secrets-gpg) engine. Puppet ([puppet-prod #480](unkin/puppet-prod#480)) installs the `openbao-plugin-secrets-gpg` RPM onto the OpenBao nodes; this registers that binary in the plugin catalog and enables the secrets engine so `gpg/` is actually usable.

- Add a `gpg_secret_backend` module using the standard `hashicorp/vault` provider (already required at 5.6.0): `vault_plugin` (catalog register with a pinned sha256) + `vault_mount` (enable at the mount path).
- Wire it through `vault_cluster` (new `gpg_secret_backend` variable + module block) and the config discovery (`config.hcl` group + syd1 terragrunt input), mirroring `litellm_secret_backend`.
- Add `config/gpg_secret_backend/gpg.yaml` mounting at `gpg/` and pinning the released v0.1.0 binary sha256 (`0e92d740…a7b20`, extracted from the published RPM). Puppet installs the RPM floating, so this sha must be bumped in lockstep on any plugin upgrade or OpenBao rejects the binary.

Validated locally with `tofu validate` + `tofu fmt`. Granting non-root access to `gpg/*` (auth roles + policies) is a follow-up scoped to whoever consumes the engine (e.g. passv from CI).

Reviewed-on: #87
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-07-17 23:19:38 +10:00

56 lines
1.3 KiB
HCL

# Generate root backend.tf
generate "backend" {
path = "backend.tf"
if_exists = "overwrite"
contents = <<EOF
locals {
vault_addr = "https://vault.service.consul:8200"
}
provider "vault" {
address = local.vault_addr
}
# The LiteLLM secrets engine is managed through its own provider, which talks to
# the same Vault server. Token falls back to the VAULT_TOKEN environment variable.
provider "litellm" {
address = local.vault_addr
}
# The gpg secrets engine's keys are managed through its own provider (same Vault
# server; token falls back to VAULT_TOKEN).
provider "gpg" {
address = local.vault_addr
}
terraform {
backend "consul" {
address = "https://consul.service.consul"
path = "infra/terraform/vault/${path_relative_to_include()}/state"
scheme = "https"
lock = true
ca_file = "/etc/pki/tls/certs/ca-bundle.crt"
}
required_version = ">= 1.10"
required_providers {
vault = {
source = "hashicorp/vault"
version = "5.6.0"
}
consul = {
source = "hashicorp/consul"
version = "2.23.0"
}
litellm = {
source = "artifactapi.k8s.syd1.au.unkin.net/terraform-unkin/litellmvaultsecret"
version = "0.1.0"
}
gpg = {
source = "artifactapi.k8s.syd1.au.unkin.net/terraform-unkin/gpgvaultsecret"
version = "0.1.0"
}
}
}
EOF
}