Improve performance and reliability when deploying multiple 2nd gen f…

…unctions using single builds (#6376)

* enable single builds v2

CHANGELOG.md

@@ -1,2 +1,3 @@
+- Improve performance and reliability when deploying multiple 2nd gen functions using single builds. (#6376)
 - Fixed an issue where `emulators:export` did not check if the target folder is empty. (#6313)
 - Fix "Could not find the next executable" on Next.js deployments (#6372)

src/deploy/functions/release/fabricator.ts

@@ -130,17 +130,22 @@ export class Fabricator {
     };
 
     const upserts: Array<Promise<void>> = [];
-    const scraper = new SourceTokenScraper();
+    const scraperV1 = new SourceTokenScraper();
+    const scraperV2 = new SourceTokenScraper();
     for (const endpoint of changes.endpointsToCreate) {
       this.logOpStart("creating", endpoint);
-      upserts.push(handle("create", endpoint, () => this.createEndpoint(endpoint, scraper)));
+      upserts.push(
+        handle("create", endpoint, () => this.createEndpoint(endpoint, scraperV1, scraperV2))
+      );
     }
     for (const endpoint of changes.endpointsToSkip) {
       utils.logSuccess(this.getLogSuccessMessage("skip", endpoint));
     }
     for (const update of changes.endpointsToUpdate) {
       this.logOpStart("updating", update.endpoint);
-      upserts.push(handle("update", update.endpoint, () => this.updateEndpoint(update, scraper)));
+      upserts.push(
+        handle("update", update.endpoint, () => this.updateEndpoint(update, scraperV1, scraperV2))
+      );
     }
     await utils.allSettled(upserts);
 
@@ -167,31 +172,39 @@ export class Fabricator {
     return deployResults;
   }
 
-  async createEndpoint(endpoint: backend.Endpoint, scraper: SourceTokenScraper): Promise<void> {
+  async createEndpoint(
+    endpoint: backend.Endpoint,
+    scraperV1: SourceTokenScraper,
+    scraperV2: SourceTokenScraper
+  ): Promise<void> {
     endpoint.labels = { ...endpoint.labels, ...deploymentTool.labels() };
     if (endpoint.platform === "gcfv1") {
-      await this.createV1Function(endpoint, scraper);
+      await this.createV1Function(endpoint, scraperV1);
     } else if (endpoint.platform === "gcfv2") {
-      await this.createV2Function(endpoint);
+      await this.createV2Function(endpoint, scraperV2);
     } else {
       assertExhaustive(endpoint.platform);
     }
 
     await this.setTrigger(endpoint);
   }
 
-  async updateEndpoint(update: planner.EndpointUpdate, scraper: SourceTokenScraper): Promise<void> {
+  async updateEndpoint(
+    update: planner.EndpointUpdate,
+    scraperV1: SourceTokenScraper,
+    scraperV2: SourceTokenScraper
+  ): Promise<void> {
     update.endpoint.labels = { ...update.endpoint.labels, ...deploymentTool.labels() };
     if (update.deleteAndRecreate) {
       await this.deleteEndpoint(update.deleteAndRecreate);
-      await this.createEndpoint(update.endpoint, scraper);
+      await this.createEndpoint(update.endpoint, scraperV1, scraperV2);
       return;
     }
 
     if (update.endpoint.platform === "gcfv1") {
-      await this.updateV1Function(update.endpoint, scraper);
+      await this.updateV1Function(update.endpoint, scraperV1);
     } else if (update.endpoint.platform === "gcfv2") {
-      await this.updateV2Function(update.endpoint);
+      await this.updateV2Function(update.endpoint, scraperV2);
     } else {
       assertExhaustive(update.endpoint.platform);
     }
@@ -276,7 +289,7 @@ export class Fabricator {
     }
   }
 
-  async createV2Function(endpoint: backend.Endpoint): Promise<void> {
+  async createV2Function(endpoint: backend.Endpoint, scraper: SourceTokenScraper): Promise<void> {
     const storageSource = this.sources[endpoint.codebase!]?.storage;
     if (!storageSource) {
       logger.debug("Precondition failed. Cannot create a GCFv2 function without storage");
@@ -351,14 +364,19 @@ export class Fabricator {
     while (!resultFunction) {
       resultFunction = await this.functionExecutor
         .run(async () => {
+          apiFunction.buildConfig.sourceToken = await scraper.getToken();
           const op: { name: string } = await gcfV2.createFunction(apiFunction);
           return await poller.pollOperation<gcfV2.OutputCloudFunction>({
             ...gcfV2PollerOptions,
             pollerName: `create-${endpoint.codebase}-${endpoint.region}-${endpoint.id}`,
             operationResourceName: op.name,
+            onPoll: scraper.poller,
           });
         })
         .catch(async (err: any) => {
+          // Abort waiting on source token so other concurrent calls don't get stuck
+          scraper.abort();
+
           // If the createFunction call returns RPC error code RESOURCE_EXHAUSTED (8),
           // we have exhausted the underlying Cloud Run API quota. To retry, we need to
           // first delete the GCF function resource, then call createFunction again.
@@ -463,7 +481,7 @@ export class Fabricator {
     }
   }
 
-  async updateV2Function(endpoint: backend.Endpoint): Promise<void> {
+  async updateV2Function(endpoint: backend.Endpoint, scraper: SourceTokenScraper): Promise<void> {
     const storageSource = this.sources[endpoint.codebase!]?.storage;
     if (!storageSource) {
       logger.debug("Precondition failed. Cannot update a GCFv2 function without storage");
@@ -482,16 +500,22 @@ export class Fabricator {
     const resultFunction = await this.functionExecutor
       .run(
         async () => {
+          apiFunction.buildConfig.sourceToken = await scraper.getToken();
           const op: { name: string } = await gcfV2.updateFunction(apiFunction);
           return await poller.pollOperation<gcfV2.OutputCloudFunction>({
             ...gcfV2PollerOptions,
             pollerName: `update-${endpoint.codebase}-${endpoint.region}-${endpoint.id}`,
             operationResourceName: op.name,
+            onPoll: scraper.poller,
           });
         },
         { retryCodes: [...DEFAULT_RETRY_CODES, CLOUD_RUN_RESOURCE_EXHAUSTED_CODE] }
       )
-      .catch(rethrowAs<gcfV2.OutputCloudFunction>(endpoint, "update"));
+      .catch((err: any) => {
+        scraper.abort();
+        logger.error((err as Error).message);
+        throw new reporter.DeploymentError(endpoint, "update", err);
+      });
 
     endpoint.uri = resultFunction.serviceConfig?.uri;
     const serviceName = resultFunction.serviceConfig?.service;

src/deploy/functions/release/sourceTokenScraper.ts

@@ -3,6 +3,10 @@ import { assertExhaustive } from "../../../functional";
 import { logger } from "../../../logger";
 
 type TokenFetchState = "NONE" | "FETCHING" | "VALID";
+interface TokenFetchResult {
+  token?: string;
+  aborted: boolean;
+}
 
 /**
  * GCF v1 deploys support reusing a build between function deploys.
@@ -11,8 +15,8 @@ type TokenFetchState = "NONE" | "FETCHING" | "VALID";
  */
 export class SourceTokenScraper {
   private tokenValidDurationMs;
-  private resolve!: (token?: string) => void;
-  private promise: Promise<string | undefined>;
+  private resolve!: (token: TokenFetchResult) => void;
+  private promise: Promise<TokenFetchResult>;
   private expiry: number | undefined;
   private fetchState: TokenFetchState;
 
@@ -22,19 +26,29 @@ export class SourceTokenScraper {
     this.fetchState = "NONE";
   }
 
+  abort(): void {
+    this.resolve({ aborted: true });
+  }
+
   async getToken(): Promise<string | undefined> {
     if (this.fetchState === "NONE") {
       this.fetchState = "FETCHING";
       return undefined;
     } else if (this.fetchState === "FETCHING") {
-      return this.promise; // wait until we get a source token
+      const tokenResult = await this.promise;
+      if (tokenResult.aborted) {
+        this.promise = new Promise((resolve) => (this.resolve = resolve));
+        return undefined;
+      }
+      return tokenResult.token;
     } else if (this.fetchState === "VALID") {
+      const tokenResult = await this.promise;
       if (this.isTokenExpired()) {
         this.fetchState = "FETCHING";
         this.promise = new Promise((resolve) => (this.resolve = resolve));
         return undefined;
       }
-      return this.promise;
+      return tokenResult.token;
     } else {
       assertExhaustive(this.fetchState);
     }
@@ -58,7 +72,10 @@ export class SourceTokenScraper {
         const [, , , /* projects*/ /* project*/ /* regions*/ region] =
           op.metadata?.target?.split("/") || [];
         logger.debug(`Got source token ${op.metadata?.sourceToken} for region ${region as string}`);
-        this.resolve(op.metadata?.sourceToken);
+        this.resolve({
+          token: op.metadata?.sourceToken,
+          aborted: false,
+        });
         this.fetchState = "VALID";
         this.expiry = Date.now() + this.tokenValidDurationMs;
       }

src/gcp/cloudfunctionsv2.ts

@@ -41,6 +41,7 @@ export interface BuildConfig {
   runtime: runtimes.Runtime;
   entryPoint: string;
   source: Source;
+  sourceToken?: string;
   environmentVariables: Record<string, string>;
 
   // Output only
@@ -320,6 +321,11 @@ export async function createFunction(cloudFunction: InputCloudFunction): Promise
     GOOGLE_NODE_RUN_SCRIPTS: "",
   };
 
+  cloudFunction.serviceConfig.environmentVariables = {
+    ...cloudFunction.serviceConfig.environmentVariables,
+    FUNCTION_TARGET: functionId,
+  };
+
   try {
     const res = await client.post<typeof cloudFunction, Operation>(
       components.join("/"),
@@ -404,6 +410,8 @@ async function listFunctionsInternal(
  * Customers can force a field to be deleted by setting that field to `undefined`
  */
 export async function updateFunction(cloudFunction: InputCloudFunction): Promise<Operation> {
+  const components = cloudFunction.name.split("/");
+  const functionId = components.splice(-1, 1)[0];
   // Keys in labels and environmentVariables and secretEnvironmentVariables are user defined, so we don't recurse
   // for field masks.
   const fieldMasks = proto.fieldMasks(
@@ -420,6 +428,12 @@ export async function updateFunction(cloudFunction: InputCloudFunction): Promise
     GOOGLE_NODE_RUN_SCRIPTS: "",
   };
   fieldMasks.push("buildConfig.buildEnvironmentVariables");
+
+  cloudFunction.serviceConfig.environmentVariables = {
+    ...cloudFunction.serviceConfig.environmentVariables,
+    FUNCTION_TARGET: functionId,
+  };
+
   try {
     const queryParams = {
       updateMask: fieldMasks.join(","),