feat: add constraints check for job resource allocation

.env.example

@@ -65,6 +65,8 @@ export P2P_BOOTSTRAP_NODES=
 export P2P_FILTER_ANNOUNCED_ADDRESSES=
 
 ## compute
+# Example with cross-resource constraints (constraints are optional and backwards-compatible):
+# export DOCKER_COMPUTE_ENVIRONMENTS='[{"socketPath":"/var/run/docker.sock","storageExpiry":604800,"maxJobDuration":3600,"minJobDuration":60,"fees":{"1":[{"feeToken":"0x123","prices":[{"id":"cpu","price":1},{"id":"ram","price":0.1},{"id":"disk","price":0.01}]}]},"resources":[{"id":"cpu","total":8,"max":8,"min":1,"constraints":[{"id":"ram","min":1,"max":3},{"id":"disk","min":10,"max":100}]},{"id":"ram","total":32,"max":32,"min":1},{"id":"disk","total":500,"max":500,"min":10},{"id":"gpu","total":4,"max":4,"min":0,"constraints":[{"id":"ram","min":8,"max":32},{"id":"cpu","min":2,"max":4}]}]}]'
 export DOCKER_COMPUTE_ENVIRONMENTS=
 
 

src/@types/C2D/C2D.ts

@@ -22,6 +22,12 @@ export interface C2DClusterInfo {
 
 export type ComputeResourceType = 'cpu' | 'ram' | 'disk' | any
 
+export interface ResourceConstraint {
+  id: ComputeResourceType // the resource being constrained
+  min?: number // min units of this resource per unit of parent resource
+  max?: number // max units of this resource per unit of parent resource
+}
+
 export interface ComputeResourcesPricingInfo {
   id: ComputeResourceType
   price: number // price per unit per minute
@@ -63,6 +69,7 @@ export interface ComputeResource {
    */
   platform?: string
   init?: dockerHwInit
+  constraints?: ResourceConstraint[] // optional cross-resource constraints
 }
 export interface ComputeResourceRequest {
   id: string

src/components/c2d/compute_engine_base.ts

@@ -248,9 +248,65 @@ export abstract class C2DEngine {
       properResources.push({ id: device, amount: desired })
     }
 
+    this.checkResourceConstraints(properResources, env, isFree)
     return properResources
   }
 
+  protected checkResourceConstraints(
+    resources: ComputeResourceRequest[],
+    env: ComputeEnvironment,
+    isFree: boolean
+  ): void {
+    const envResources = isFree ? (env.free?.resources ?? []) : (env.resources ?? [])
+    for (const envResource of envResources) {
+      if (!envResource.constraints || envResource.constraints.length === 0) continue
+      const parentAmount = this.getResourceRequest(resources, envResource.id)
+      if (!parentAmount || parentAmount <= 0) continue
+
+      for (const constraint of envResource.constraints) {
+        let constrainedAmount = this.getResourceRequest(resources, constraint.id) ?? 0
+
+        if (constraint.min !== undefined) {
+          const requiredMin = parentAmount * constraint.min
+          if (constrainedAmount < requiredMin) {
+            const constrainedMaxMin = this.getMaxMinResource(constraint.id, env, isFree)
+            if (requiredMin > constrainedMaxMin.max) {
+              throw new Error(
+                `Cannot satisfy constraint: ${parentAmount} ${envResource.id} requires at least ${requiredMin} ${constraint.id}, but max is ${constrainedMaxMin.max}`
+              )
+            }
+            this.setResourceAmount(resources, constraint.id, requiredMin)
+            constrainedAmount = requiredMin
+          }
+        }
+
+        if (constraint.max !== undefined) {
+          const requiredMax = parentAmount * constraint.max
+          // re-read in case it was bumped above
+          constrainedAmount = this.getResourceRequest(resources, constraint.id) ?? 0
+          if (constrainedAmount > requiredMax) {
+            throw new Error(
+              `Too much ${constraint.id} for ${parentAmount} ${envResource.id}. Max allowed: ${requiredMax}, requested: ${constrainedAmount}`
+            )
+          }
+        }
+      }
+    }
+  }
+
+  protected setResourceAmount(
+    resources: ComputeResourceRequest[],
+    id: ComputeResourceType,
+    amount: number
+  ): void {
+    for (const resource of resources) {
+      if (resource.id === id) {
+        resource.amount = amount
+        return
+      }
+    }
+  }
+
   public async getUsedResources(env: ComputeEnvironment): Promise<any> {
     const usedResources: { [x: string]: any } = {}
     const usedFreeResources: { [x: string]: any } = {}

src/test/integration/compute.test.ts

@@ -205,7 +205,7 @@ describe('Compute', () => {
       oceanNode.blockchainRegistry
     )
     oceanNode.addIndexer(indexer)
-    oceanNode.addC2DEngines()
+    await oceanNode.addC2DEngines()
 
     provider = new JsonRpcProvider('http://127.0.0.1:8545')
     publisherAccount = (await provider.getSigner(0)) as Signer
@@ -2215,7 +2215,7 @@ describe('Compute', () => {
 
   after(async () => {
     await tearDownEnvironment(previousConfiguration)
-    indexer.stopAllChainIndexers()
+    await indexer.stopAllChainIndexers()
   })
 })
 
@@ -2368,7 +2368,7 @@ describe('Compute Access Restrictions', () => {
         oceanNode.blockchainRegistry
       )
       oceanNode.addIndexer(indexer)
-      oceanNode.addC2DEngines()
+      await oceanNode.addC2DEngines()
 
       publishedComputeDataset = await publishAsset(computeAsset, publisherAccount)
       publishedAlgoDataset = await publishAsset(algoAsset, publisherAccount)
@@ -2555,7 +2555,7 @@ describe('Compute Access Restrictions', () => {
         oceanNode.blockchainRegistry
       )
       oceanNode.addIndexer(indexer)
-      oceanNode.addC2DEngines()
+      await oceanNode.addC2DEngines()
 
       publishedComputeDataset = await publishAsset(computeAsset, publisherAccount)
       publishedAlgoDataset = await publishAsset(algoAsset, publisherAccount)
@@ -2685,7 +2685,7 @@ describe('Compute Access Restrictions', () => {
         oceanNode.blockchainRegistry
       )
       oceanNode.addIndexer(indexer)
-      oceanNode.addC2DEngines()
+      await oceanNode.addC2DEngines()
 
       const provider = new JsonRpcProvider('http://127.0.0.1:8545')
       const publisherAccount = (await provider.getSigner(0)) as Signer