Files
spinifex/scripts/images/eks-node
Josh Siviour 5aaf8c23d2 fix(eks): make aws eks get-token → kubectl auth work end-to-end (Sprint 6f) (#303)
* feat(eks): webhook observability — console log sink + per-request TokenReview decision

* fix(eks): wire token-webhook authenticator into generated k3s apiserver config

The generated /etc/rancher/k3s/config.yaml overrides the AMI-baked
config.yaml.skel, but its kube-apiserver-arg list omitted the
authentication-token-webhook-config-file arg. The running apiserver
therefore never loaded the token webhook, so bearer tokens minted by
'aws eks get-token' 401'd without the webhook ever being invoked.

* fix(eks): echo TokenReview audiences so api-audiences apiserver accepts the principal

With --api-audiences set, kube-apiserver sends spec.audiences in the
TokenReview and discards an authenticated=true response that does not
confirm a matching audience. The webhook returned an empty
status.audiences, so a valid IAM principal surfaced as a 401. Echo the
request's audiences on success.

* fix(eks): pin token-webhook version v1 so apiserver accepts the response

kube-apiserver --authentication-token-webhook-version defaults to
v1beta1, but the eks-token-webhook responds with an
authentication.k8s.io/v1 TokenReview. The apiserver decodes the response
against the expected GVK and rejects the mismatch, surfacing a valid
principal as a 401. Pin v1 to match the webhook.
2026-06-06 22:11:50 +10:00
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