Two reachable clusters each carry a CNPG Cluster named apps-pg in a
namespace named databases. KUBECONFIG is an environment variable, so the
Makefile ?= default never applied, and RAILIANCE01_KUBECONFIG pointed at
config-hosteurope - a different cluster. Had the environment pointed at the
other reachable cluster instead of an unauthorized one, make apps-pg-deploy
would have applied RPF-WP-0019 connection limits, role timeouts and backup
config to the wrong cluster and reported success. The Unauthorized error was
the only thing that prevented it.
Filename selection cannot protect against this: both kubeconfigs resolve to
a 127.0.0.1 tunnel port and the environment wins either way. railiance01-guard
pins identity instead, comparing the live kube-system namespace UID against
RAILIANCE01_CLUSTER_UID, and fails closed on mismatch or unreachability. It
gates apps-pg deploy, backup-deploy, overflow-dry-run, status and shell.
Verified refusing on the wrong cluster, refusing when unreachable, and
passing on railiance01. Not global: db-status legitimately targets the other
cluster for gitea-db.
RPF-WP-0019 blocker note corrected - the cluster was never unreachable, our
wiring was wrong.
RPF-WP-0020 seeded for the pre-existing CCR test failure, which is two
unrelated problems: CCR-2026-0010 is an active lane missing its whole
openbao.auth block, and CCR-2026-0011 is an honest in-flight draft the suite
has no way to express.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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