Watch Google Firebase Cloud Run Video Tutorials & Courses

If you’ve ever tried to secure a Cloud Run service by simply removing "allUsers," you know the pain: you don’t get a nice Login page, you just get a generic 403 Forbidden error. Not exactly a great user experience. 🛑 You can add Identity Aware Proxy (IAP) for a login screen, but then the user is forced to login before they can see anything (what am I logging in to?) - not really user-friendly, especially for new users. In this tutorial, we are going to fix that. I’ll show you how to implement a proper "Sign in with Google" flow for an example Python application running on Cloud Run. I use Python and Flask here, but I created the simplest possible example so you can understand the logic regardless of your framework or language of choice. We will use Firebase Authentication to handle the frontend login and then swap that token for a secure session cookie on the backend. What I cover: - Why IAM permissions aren't enough (and not always what you think) for a public login page. - Setting up Firebase Auth with Google Identity Platform. - Writing the Python/Flask logic to manage session cookies. - Handling the tricky IAM Service Account permissions required to talk to Firebase Auth. ⚠️ Note: This is a demo example designed to teach you the basics of the authentication flow (AuthN). Links: Google Cloud console: https://console.cloud.google.com Firebase Console: https://console.firebase.google.com Chapters: 00:00 Intro & demo 01:51 The 403 error demo 04:14 Firebase setup 05:16 Enable Google Sign-In 06:06 Authorized domains 06:27 Firebase SDK 07:14 Frontend login page 09:01 Backend session logic 11:06 Logout endpoint 11:48 Middleware protection 13:11 Deployment 13:36 Fixing build errors 14:24 Testing login 15:07 Let's add new endpoint 17:04 Service account IAM 17:51 Summary: AuthN vs AuthZ Key Highlights & Overview: Learning <strong>Google Firebase Cloud Run</strong> is essential for modern technical workflows and software skills. Explore curated video courses, expert walkthroughs, and detailed lesson notes today on <strong>TutorTube</strong>.