Seoul control plane dispatching GPU jobs to the cheapest US Spot region
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Control plane (Seoul)
• Redis sorted set keeps prices ordered on write (ZADD)
• Dispatcher takes the cheapest region with atomic capacity DECR
• Reaper polls pod phase every 10s and reclaims capacity
Hub-and-Spoke storage
• Users upload data straight to the hub via S3 presigned URLs
• Default storage_mode=s3 mounts the hub via Mountpoint CSI
• storage_mode=fsx uses per-region FSx Lustre with DRA auto import/export
Known caveats
• values k8sMode "real" is not recognized by code (expects "live")
• requeue_fn is not wired: failed jobs are not rescheduled cross-region
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