Extends Authentik SSO to ArgoCD so cluster operators log in with their
Authentik identity and group membership instead of the local admin account.
- Add config/providers_oauth2/argocd.yaml: confidential OAuth2 provider +
application (slug argocd), client_id argocd, openid/email/profile scopes,
web SSO and CLI (localhost:8085) redirect URIs. client_secret is read from
Vault at kv/kubernetes/namespace/argocd/default/oauth-credentials, matching
the existing Grafana pattern.
Adds an OIDC provider + application so the in-cluster Grafana
(grafana.k8s.syd1.au.unkin.net) can authenticate users against Authentik.
Extends the oauth2 module so provider config stays declarative and
secret-free:
- Resolve authorization/invalidation flows by slug (data.authentik_flow)
and scope mappings by managed identifier
(data.authentik_property_mapping_provider_scope).
- Read client_secret from Vault kv-v2 (data.vault_kv_secret_v2) instead of
committing it; adds the hashicorp/vault provider (auth via VAULT_ADDR/
VAULT_TOKEN from the Makefile).
- Support allowed_redirect_uris on the oauth2 provider.
config/providers_oauth2/grafana.yaml wires client_id `grafana`, the
openid/email/profile scopes, the login/generic_oauth redirect URI, and
points client_secret at kv/kubernetes/namespace/grafana/default/oauth-credentials.
unkinben