unkinben 87e3ada14f
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Mount the rancher secrets engine + seed a service account + roles (#93)
## Why

Deploy the new Rancher token secrets engine into the cluster (the last of the 4 wiring PRs), mirroring the litellm/gpg pattern. Users can then `vault read rancher/creds/<role>` for short-lived, cluster-scoped Rancher tokens, backed by a seeded admin token the engine auto-rotates before Rancher's 90-day cap.

## Changes

- Add `rancher_secret_backend` module — mount + config via the ranchervaultsecret provider (rancher_url `https://rancher.k8s.syd1.au.unkin.net`).
- Add `rancher_secret_backend_service_account` module — seeds an auto-rotated token (90d TTL / 45d rotation); the seed token is read from KV, not git.
- Add `rancher_secret_backend_role` module + a `ci` role (1h/8h, cluster+TTL scoped).
- Wire `config.hcl` discovery, module variables, `main.tf` blocks, terragrunt inputs, and the `rancher` provider in `root.hcl`.
- Config: `config/rancher_secret_backend/rancher.yaml`, `.../service_account/rancher/admin.yaml`, `.../role/rancher/ci.yaml`.

## Prerequisite

Populate `kv/service/vault/au/syd1/secret_backend/rancher/service_account/admin` with a live Rancher admin token (keys: `token`, optional `token_name`) **before** apply, exactly as litellm's `master_key` is seeded in KV.

## Merge order

Part 4 of 4 (last). Requires: puppet install (#483) → deployer policy (#91) → plugin import (#92) → this. The `plan` needs the KV seed present, so seed KV first.

---------

Co-authored-by: Ben Vincent <neotheo@gmail.com>
Reviewed-on: #93
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-07-18 16:16:54 +10:00
2024-09-09 22:57:00 +10:00
2026-05-21 23:52:30 +10:00
2024-09-23 22:01:18 +10:00

terraform-vault

A repository to manage the configuration of Vault secret engines, authentication modes and policies.

Usage

  1. Initialize Terraform

Once you have your backend block configured, you need to initialize your Terraform working directory to configure the backend:

terraform init

This command initializes the backend and checks the connection to Consul. If everything is set up correctly, Terraform will start using Consul as its backend for storing the state.

  1. Common terraform init Errors

If you encounter errors while running terraform init, check the following:

Consul server is reachable: Make sure that the address is correct and that you can connect to the Consul server.
Consul token (if using ACLs): Verify that the token has the correct permissions to write to the specified path in the Consul KV store.
  1. Example Consul KV Structure

In Consul, the state file will be stored in the KV store under the specified path:

terraform/state

You can check the Consul KV store by accessing the Consul UI or using the consul kv command to see the stored Terraform state:

consul kv get terraform/state
S
Description
A repository to manage the configuration of Vault secret engines, authentication modes and policies.
Readme MIT 734 KiB
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