Remove inf1/inf2/trn1 from RunsOn default spot instance families - #275
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Erik Osterman (Cloud Posse) (osterman) merged 1 commit intoAug 18, 2026
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Cloud Posse does not run inference or training workloads, so these Inferentia/Trainium accelerator families should not be in the default CI runner pool. They were swept in by the aws ec2 describe-instance-types filter used to generate this list, despite the comment above stating the intent to limit to the standard (A, C, D, H, I, M, R, T, Z) instance classes. Their AWS spot quota (L-B5D1601B, 32 vCPUs) is far smaller than the standard families' quota (L-34B43A08, 1230 vCPUs) and was found fully saturated, triggering MaxSpotInstanceCountExceeded and an expensive fallback to on-demand pricing for CI jobs that never needed accelerator hardware in the first place. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Erik Osterman (Cloud Posse) (osterman)
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Andriy Knysh (aknysh)
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Aug 18, 2026
Erik Osterman (Cloud Posse) (osterman)
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August 18, 2026 03:09
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Summary
inf1.*,inf2.*, andtrn1.*from thefamily:allowlist in thedefaultRunsOn runner profileaws ec2 describe-instance-typesgeneration query despite the file's own comment stating the intent to limit to standard (A, C, D, H, I, M, R, T, Z) instance classesMaxSpotInstanceCountExceedederror: the Inf spot quota (L-B5D1601B) is only 32 vCPUs (vs. 1230 vCPUs for the standard family quota,L-34B43A08) and was found fully saturated, forcing CI jobs to fall back to expensive on-demand pricing for hardware they never neededTest plan
default/common/small/medium/terraform/large/xlargerunner profiles after mergeMaxSpotInstanceCountExceededno longer recurs forinf1/inf2/trn1