Default CNPG affinity was `preferred` (soft). During the 2026-05-26 node4 outage, all 3 pg-cluster pods drifted onto k8s-node1 — losing that node would have taken the whole PG cluster down (no quorum) AND the 9.2 GiB pg-cluster footprint was the dominant reason frigate couldn't fit on the GPU node. With 3 instances + 4 worker nodes, `required` is safe under 1-node drain (3 distinct nodes always available, even excluding the drained one). Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com> |
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