The cluster was split-brained.
Alex had been riding high. The mandate was simple: “Upgrade all development clusters to the latest stable K3s.” It was a Tuesday. It was supposed to be easy. k3s downgrade version
Alex typed into the Slack channel: “Cluster recovered. Root cause: version skew during upgrade. Pinning all clusters to v1.27.4 until we test the etcd migration path.” The cluster was split-brained
Downgrading Kubernetes is like asking a speeding train to reverse back into the station without derailing. Everyone says “don’t do it.” But at 3:15 AM, with a dead cluster and a rising pagerduty storm, Alex had no choice. It was supposed to be easy
2:47 AM. A dark, cramped home office. The only light comes from three terminal windows and a half-empty mug of coffee that went cold two hours ago.