Evacuate CI runners from kai-server to the ser8 cluster #314

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opened 2026-06-12 11:20:02 +00:00 by coilysiren · 1 comment
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Mitigation 1 from #311 (assumes the k3s ExecStartPre stays). Forgejo runners only need network reach to forgejo, not co-location with it. Running them on ser8's k3s removes them from kai-server's k3s restart blast radius entirely, so the recurring CI-down-after-maintenance failure mode stops existing. Also aligns with the strategic split: kai-server hosts apps, ser8 hosts the ops plane. Depends on ser8's k3s standing up (the o11y baseline work).

Mitigation 1 from #311 (assumes the k3s ExecStartPre stays). Forgejo runners only need network reach to forgejo, not co-location with it. Running them on ser8's k3s removes them from kai-server's k3s restart blast radius entirely, so the recurring CI-down-after-maintenance failure mode stops existing. Also aligns with the strategic split: kai-server hosts apps, ser8 hosts the ops plane. Depends on ser8's k3s standing up (the o11y baseline work).
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Superseded by infrastructure#693, which consolidates the ser8 runner move around the current scoped-runner topology, live disk and capacity evidence, Forgejo OCI dependency, staged rollout, and rollback boundary. This issue remains a historical reference.

Superseded by [infrastructure#693](https://forgejo.coilysiren.me/coilyco-flight-deck/infrastructure/issues/693), which consolidates the ser8 runner move around the current scoped-runner topology, live disk and capacity evidence, Forgejo OCI dependency, staged rollout, and rollback boundary. This issue remains a historical reference.
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coilyco-flight-deck/infrastructure#314
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