unkinben
90a01563dc
Manages Rancher's Keycloak(OIDC) auth provider via the rancher2 provider, pointed at Authentik. Mirrors the terraform-authentik layout (terragrunt + Vault-sourced secrets + Woodpecker plan/apply/pre-commit pipelines). - modules/rancher: rancher2_auth_config_keycloak_oidc, client_secret read from Vault (kv/kubernetes/namespace/cattle-system/default/oauth-credentials); access_mode unrestricted to avoid admin lockout on enable. - config/keycloakoidc.yaml: issuer/auth_endpoint at identity.unkin.net, client_id rancher, /verify-auth redirect, openid/profile/email scopes. - environments/rancher.k8s.syd1.au.unkin.net: consul state at infra/terraform/rancher/, rancher2 provider api_url from the env name. - rancher2 admin token read from kv/service/terraform/rancher (Makefile); to migrate to a dedicated Vault Rancher secrets engine (90-day token cap). Validated with `tofu validate` (config valid against the rancher2 provider). A live `plan` needs the Rancher admin API token seeded in Vault first.
terraform-rancher
Terraform configuration for managing Rancher (rancher.k8s.syd1.au.unkin.net)
authentication via the rancher2
provider. Mirrors the terraform-authentik pattern.
Managed Resources
- Keycloak(OIDC) auth config — Authentik OIDC login for Rancher.
Configuration
config/keycloakoidc.yaml defines the auth provider. The OAuth client secret is
read from Vault (kv-v2) — the same secret Authentik sets on its rancher
provider — and is never committed.
access_mode: unrestricted lets any authenticated Authentik user log in; Rancher
roles are granted to users/groups separately. This avoids locking the admin out
when the provider is first enabled.
Usage
make plan # init + plan
make apply # init + plan + apply
make format # fmt tofu + terragrunt hcl
Authentication
The rancher2 provider needs a Rancher admin API token, read from Vault at
kv/service/terraform/rancher (field token).
Note: Rancher API tokens have a 90-day maximum lifetime, so the static token must be rotated. This is intended to move to a dedicated Vault Rancher secrets engine that mints short-lived tokens on demand; when that lands, update the Makefile
vault_envhelper tovault readfrom that engine.
Set VAULT_ROLEID for local AppRole auth, or VAULT_AUTH_METHOD=kubernetes
for CI (Woodpecker).