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Field notes from production

Written after the fact, from systems I actually run. No tutorials, no launch posts — what the decision cost and what it returned.

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Jun 2026 · 16 min

Kubeadm to Talos in place: nine production clusters, zero downtime

The field note from migrating nine kubeadm clusters to Talos without rebuilding them: reuse the PKI, and every node you replace joins the cluster it was already in.

Kubernetes Talos OpenTofu Kubeadm