allow BASE_URL and WEB_SERVER_URL env vars

playwright.config.ts

@@ -1,5 +1,8 @@
 import { defineConfig, devices } from '@playwright/test';
 
+const baseURL = process.env.BASE_URL || 'http://127.0.0.1:3000';
+const webServerURL = process.env.WEB_SERVER_URL || baseURL;
+
 export default defineConfig({
   testDir: './tests',
   fullyParallel: true,
@@ -8,7 +11,7 @@ export default defineConfig({
   workers: process.env.CI ? 1 : undefined,
   reporter: 'html',
   use: {
-    baseURL: 'http://127.0.0.1:3000',
+    baseURL,
     trace: 'on-first-retry',
   },
   projects: [
@@ -19,7 +22,7 @@ export default defineConfig({
   ],
   webServer: {
     command: 'npm run dev',
-    url: 'http://127.0.0.1:3000',
+    url: webServerURL,
     reuseExistingServer: !process.env.CI,
   },
 });