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g1t/packages/contracts/src/instances.ts

49 lines1,857 bytesCodeBlame
1/**
2 * Sizes of machine g1t runs workflow jobs on, asked for by a label in
3 * `runs-on`. Mirrors `g1t_contracts::actions::INSTANCE_TYPES`. Each is a
4 * Cloudflare Containers instance type, and costs what that instance costs
5 * g1t, plus the margin, like any sandbox time.
6 */
7export type InstanceType = {
8 /** The `runs-on` label, or `standard` for the default. */
9 label: string;
10 /** The Containers instance type. */
11 container: string;
12 vcpu: number;
13 memoryGib: number;
14 diskGb: number;
15 /**
16 * What a second of it may cost, as a multiple of the standard machine's
17 * price per second, with every vCPU busy: what is reserved before a job
18 * starts, and what a job that did not report its CPU is charged at
19 * (billing's `record_sandbox`; `price_scale` in the Rust contracts).
20 */
21 estimateScale: number;
22};
23
24/** The default: what `ubuntu-latest` and every other hosted label get. */
25export const STANDARD_INSTANCE: InstanceType = {
26 label: "standard",
27 container: "standard-1",
28 vcpu: 0.5,
29 memoryGib: 4,
30 diskGb: 8,
31 estimateScale: 1,
32};
33
34/**
35 * Every machine a job can ask for, the default first. The scales follow
36 * Cloudflare's list prices: memory $0.0000025 a GiB-second, disk
37 * $0.00000007 a GB-second, vCPU $0.00002 a second.
38 */
39export const INSTANCE_TYPES: readonly InstanceType[] = [
40 STANDARD_INSTANCE,
41 { label: "g1t-2core", container: "standard-3", vcpu: 2, memoryGib: 8, diskGb: 16, estimateScale: 2.8 },
42 { label: "g1t-4core", container: "standard-4", vcpu: 4, memoryGib: 12, diskGb: 20, estimateScale: 5.1 },
43];
44
45/** An instance type by its label; the standard one for anything else. */
46export function instanceNamed(label: string | null | undefined): InstanceType {
47 const wanted = label?.trim().toLowerCase();
48 return INSTANCE_TYPES.find((instance) => instance.label === wanted) ?? STANDARD_INSTANCE;
49}