cleaner location for mounted in cocalc code

Author: williamstein

src/packages/project-runner/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@cocalc/project-runner",
-  "version": "0.1.0",
+  "version": "0.1.2",
   "description": "CoCalc Project Runner",
   "exports": {
     "./run": "./dist/run/index.js"

src/packages/project-runner/run/mounts.ts

@@ -34,13 +34,19 @@ export async function init() {
   logger.debug(MOUNTS);
 }
 
+const COCALC_BIN = "/opt/cocalc/bin";
+export const COCALC_SRC = "/opt/cocalc/src";
 export function getCoCalcMounts() {
-  nodePath = join("/cocalc/bin", basename(process.execPath));
+  // NODEJS_SEA_PATH is where we mount the directory containing the nodejs SEA binary,
+  // which we *also* use for running the project itself.
+  nodePath = join(COCALC_BIN, basename(process.execPath));
   // IMPORTANT: take care not to put the binary next to sensitive info due
   // to mapping in process.execPath!
   return {
-    [dirname(root)]: "/cocalc",
-    [dirname(process.execPath)]: "/cocalc/bin",
+    // /cocalc is where the project Javascript code is located; this is hardcoded
+    // also in
+    [join(dirname(root), "src")]: COCALC_SRC,
+    [dirname(process.execPath)]: COCALC_BIN,
   };
 }
 

src/packages/project-runner/run/podman.ts

@@ -11,9 +11,10 @@ import { mkdir } from "fs/promises";
 import { spawn } from "node:child_process";
 import { type Configuration } from "./types";
 export { type Configuration };
-import { getCoCalcMounts } from "./mounts";
+import { getCoCalcMounts, COCALC_SRC } from "./mounts";
 import { mountHome, setQuota } from "./filesystem";
 import { executeCode } from "@cocalc/backend/execute-code";
+import { join } from "path";
 
 const logger = getLogger("project-runner:podman");
 const children: { [project_id: string]: any } = {};
@@ -60,7 +61,7 @@ export async function start({
 
   const args: string[] = ["run", "--rm", "--network=host", "--user=0:0"];
   const cmd = "podman";
-  const script = "/cocalc/src/packages/project/bin/cocalc-project.js";
+  const script = join(COCALC_SRC, "/packages/project/bin/cocalc-project.js");
 
   args.push("--hostname", `project-${project_id}`);
   args.push("--name", `project-${project_id}`);