unkinben 8bb071ae46
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Add auth and state access for terraform-rancher (#86)
## Why

The new `terraform-rancher` repo (manages Rancher's Authentik OIDC auth via the rancher2 provider) needs Vault auth + Consul state, mirroring the terraform-authentik runner (#78/#81/#82).

## Change

- `AppRole/terraform_rancher` + k8s auth role `woodpecker_terraform_rancher` (SA terraform-rancher in the woodpecker ns).
- Consul secret-backend role + ACL policy (`resources/secret_backend/consul_root/au/syd1/terraform-rancher.hcl`) granting write to the `infra/terraform/rancher/` state prefix.
- Vault policies: read the Rancher admin API token (`kv/service/terraform/rancher`) and the keycloakoidc client secret (`kv/kubernetes/namespace/cattle-system/default/oauth-credentials`), plus the consul_root state creds.

Scoped the OAuth read to the `cattle-system` path specifically (rather than the `+` wildcard the authentik policy uses) since the Rancher runner only needs its own app's secret.

## Validation

pre-commit (terragrunt-hcl-fmt + yamllint) passed. CI plan will confirm.

Reviewed-on: #86
Co-authored-by: Ben Vincent <ben@unkin.net>
Co-committed-by: Ben Vincent <ben@unkin.net>
2026-07-15 21:37:45 +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.
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