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feat(db): scaling options on creation (#861)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| import { | ||
| getContainerProfileFromType, | ||
| hourlyAndMonthlyCostsForContainers, | ||
| } from "@app/deploy"; | ||
| import type { DeployDisk, DeployService, InstanceClass } from "@app/types"; | ||
| import { useEffect, useReducer } from "react"; | ||
|
|
||
| export interface DbScaleOptions { | ||
| diskSize: number; | ||
| containerSize: number; | ||
| containerProfile: InstanceClass; | ||
| iops: number; | ||
| } | ||
|
|
||
| export type DbScaleAction = | ||
| | { type: "diskSize"; payload: number } | ||
| | { type: "containerSize"; payload: number } | ||
| | { type: "containerProfile"; payload: InstanceClass } | ||
| | { type: "iops"; payload: number } | ||
| | { type: "set"; payload: DbScaleOptions }; | ||
|
|
||
| function dbScaleReducer( | ||
| state: DbScaleOptions, | ||
| action: DbScaleAction, | ||
| ): DbScaleOptions { | ||
| switch (action.type) { | ||
| case "set": | ||
| return action.payload; | ||
| case "diskSize": | ||
| return { ...state, diskSize: action.payload }; | ||
| case "iops": | ||
| return { ...state, iops: action.payload }; | ||
| case "containerSize": | ||
| return { ...state, containerSize: action.payload }; | ||
| case "containerProfile": { | ||
| const profile = getContainerProfileFromType(action.payload); | ||
| const containerSize = Math.max( | ||
| state.containerSize, | ||
| profile.minimumContainerSize, | ||
| ); | ||
| return { ...state, containerProfile: action.payload, containerSize }; | ||
| } | ||
| default: | ||
| return state; | ||
| } | ||
| } | ||
|
|
||
| export function defaultDatabaseScaler( | ||
| service: DeployService, | ||
| disk: DeployDisk, | ||
| ): DbScaleOptions { | ||
| return { | ||
| diskSize: disk.size, | ||
| iops: disk.provisionedIops, | ||
| containerSize: service.containerMemoryLimitMb, | ||
| containerProfile: service.instanceClass, | ||
| }; | ||
| } | ||
|
|
||
| export function useDatabaseScaler({ | ||
| service, | ||
| disk, | ||
| }: { service: DeployService; disk: DeployDisk }) { | ||
| const opts = defaultDatabaseScaler(service, disk); | ||
| const [scaler, dispatchScaler] = useReducer(dbScaleReducer, opts); | ||
|
|
||
| // if source of truth has changed, update `scaler` obj | ||
| useEffect(() => { | ||
| dispatchScaler({ type: "set", payload: opts }); | ||
| }, [ | ||
| disk.size, | ||
| disk.provisionedIops, | ||
| service.containerMemoryLimitMb, | ||
| service.instanceClass, | ||
| ]); | ||
|
|
||
| const changesExist = | ||
| service.containerMemoryLimitMb !== scaler.containerSize || | ||
| service.instanceClass !== scaler.containerProfile || | ||
| disk.size !== scaler.diskSize || | ||
| disk.provisionedIops !== scaler.iops; | ||
|
|
||
| const currentContainerProfile = getContainerProfileFromType( | ||
| service.instanceClass, | ||
| ); | ||
| const requestedContainerProfile = getContainerProfileFromType( | ||
| scaler.containerProfile, | ||
| ); | ||
| const { pricePerHour: currentPricePerHour, pricePerMonth: currentPrice } = | ||
| hourlyAndMonthlyCostsForContainers( | ||
| service.containerCount, | ||
| currentContainerProfile, | ||
| service.containerMemoryLimitMb, | ||
| disk.size, | ||
| ); | ||
| const { pricePerHour: estimatedPricePerHour, pricePerMonth: estimatedPrice } = | ||
| hourlyAndMonthlyCostsForContainers( | ||
| 1, | ||
| requestedContainerProfile, | ||
| scaler.containerSize, | ||
| scaler.diskSize, | ||
| ); | ||
|
|
||
| return { | ||
| scaler, | ||
| dispatchScaler, | ||
| changesExist, | ||
| currentPricePerHour, | ||
| currentPrice, | ||
| estimatedPricePerHour, | ||
| estimatedPrice, | ||
| requestedContainerProfile, | ||
| currentContainerProfile, | ||
| }; | ||
| } |
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