Price shared-core E2 types at their billed vCPU fraction - #4
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e2-micro/e2-small/e2-medium expose 2 logical vCPUs (they can burst to 2) but Google bills them at a baseline fraction of one core: 0.25 / 0.5 / 1.0 vCPU respectively. The pricer billed the full logical count, which overstated e2-micro ~5.6x (observed: $33.98/mo scanned vs ~$6/mo actual list price). Closes #3 Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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Summary
Closes #3.
e2-micro/e2-small/e2-medium expose 2 logical vCPUs (they can burst to 2) but Google bills them at a baseline fraction of one core — 0.25 / 0.5 / 1.0 vCPU respectively. The pricer billed the full logical vCPU count, overstating e2-micro ~5.6x.
Testing
billedVCPUfraction table (including case-insensitivity and pass-through for non-shared-core types) andPriceend-to-end with a shared-core instance vs. a standard one.go vet ./...andgo test ./...pass.footprintai-prod: both e2-micro instances dropped from $33.98/$39.34 per month (logical-vCPU pricing) to $6.11/$7.08 (billed-fraction pricing), matching the hand-computed list price. The two c3d-highmem-8 Spot instances (unaffected by this change) still price correctly at $79.69/$150.23.🤖 Generated with Claude Code