allow alternate scripts to run in docker, fix performance issue with workers

Dockerfile

@@ -109,5 +109,7 @@ ENV SERVE_CLIENT /home/node/app/packages/client
 ENV SERVE_ADMIN /home/node/app/packages/admin
 
 EXPOSE 3000
+# profiler port, only used if profiler is explicity running
+EXPOSE 9229
 ENTRYPOINT [ "/bin/sh" ]
 CMD [ "./docker-start.sh" ]

docker-compose.yml

@@ -9,9 +9,11 @@ services:
     build: .
     ports:
       - "3000:3000"
+      # - "9229:9229"
     environment:
       - REDIS_HOST=redis://redis
       - DATABASE_URL=postgres://postgres@postgres/canvas
+      # - SCRIPT_TO_RUN=profiler
     env_file:
       - .env.local
     depends_on:

docker-start.sh

@@ -3,5 +3,8 @@
 # This script runs when the docker image starts
 # It just forces all migrations to run and then starts lol
 
+# Allow running of other scripts via environment variable (eg. profiler)
+SCRIPT_TO_RUN="${SCRIPT_TO_RUN:-start}"
+
 npx -w packages/server npx prisma migrate deploy
-npm -w packages/server run start
+npm -w packages/server run $SCRIPT_TO_RUN

packages/server/package.json

@@ -4,6 +4,7 @@
   "scripts": {
     "dev": "DOTENV_CONFIG_PATH=.env.local tsx watch -r dotenv/config src/index.ts",
     "start": "node --enable-source-maps dist/index.js",
+    "profiler": "node --inspect=0.0.0.0:9229 --enable-source-maps dist/index.js",
     "build": "tsc",
     "lint": "eslint .",
     "prisma:studio": "BROWSER=none prisma studio",

packages/server/src/workers/worker.ts

@@ -5,24 +5,33 @@ import { getLogger } from "../lib/Logger";
 const Logger = getLogger("WORKER_ROOT");
 
 export const spawnWorker = (file: string, wkOpts: WorkerOptions = {}) => {
-  if (process.env.NODE_ENV === "production") file = file.replace(".ts", ".js");
+  if (process.env.NODE_ENV === "production") {
+    // when compiled we no longer need ts-node as it's already raw JS
+    // replace the file extension so it can load it directly
 
-  // https://github.com/TypeStrong/ts-node/issues/676#issuecomment-531620154
-  wkOpts.eval = true;
-  if (!wkOpts.workerData) {
-    wkOpts.workerData = {};
-  }
-  wkOpts.workerData.__filename = path.join(__dirname, file);
-  return new Worker(
-    `
+    file = path.join(__dirname, file.replace(".ts", ".js"));
+    return new Worker(file, wkOpts);
+  } else {
+    // when in development we just have TS files
+    // this loads TS dynamically when the worker is created
+
+    // https://github.com/TypeStrong/ts-node/issues/676#issuecomment-531620154
+    wkOpts.eval = true;
+    if (!wkOpts.workerData) {
+      wkOpts.workerData = {};
+    }
+    wkOpts.workerData.__filename = path.join(__dirname, file);
+    return new Worker(
+      `
           const wk = require('worker_threads');
           require('ts-node').register();
           let file = wk.workerData.__filename;
           delete wk.workerData.__filename;
           require(file);
       `,
-    wkOpts
-  );
+      wkOpts
+    );
+  }
 };
 
 const AllWorkers = {