fleetd

a kubernetes operator that manages bare-metal node pools like cattle — provisioning, draining, and reimaging without a human in the loop.

platform

Mono rack

why

the bare-metal fleet was managed by a wiki page and a very tired person. fleetd turns node lifecycle into declarative state: you describe the pool, the operator negotiates with the machines until reality agrees.

notes

  • reconciles power state, firmware, and os image through one crd
  • drains are gradual and slo-aware — the operator watches error budgets before it moves
  • the wiki page is now three paragraphs, which i consider the real deliverable

running in production across two data centres since 2025.

Mono whiteboard