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home's own authentik pods reach ha-authentik-postgres via the CoreDNS rewrite on port 61432 (not just external traffic via NodePort on 5432/ 61432) - discovered live that Istio ambient's port-level mTLS/L4 authorization enforcement is keyed on the port actually dialed (61432 here), not just the pod's real containerPort (5432) traffic eventually reaches after Service translation. The existing port-5432-only rules (from the streaming-replication fix) didn't cover this in-cluster path, surfacing as 'server closed the connection unexpectedly' from home's own authentik-worker pod. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>