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GCP App Engine Serving Static Files Results in 404 Errors Despite Correct Configuration

👀 Views: 0 💬 Answers: 1 📅 Created: 2025-07-15
google-cloud-platform app-engine flask Python

I'm upgrading from an older version and I keep running into I've been struggling with this for a few days now and could really use some help. Hey everyone, I'm running into an issue that's driving me crazy. I am deploying a Flask application on Google App Engine and configured it to serve static files from a specific directory. However, when I access the static files via their URLs, I receive 404 Not Found errors. I've configured my `app.yaml` file as follows: ```yaml runtime: python39 entrypoint: gunicorn -b :$PORT main:app handlers: - url: /static static_dir: static/ - url: /(.*) script: auto ``` My static files are located in the `static` directory at the root of my application. I have also confirmed that the files do exist in the deployed environment by checking the file structure via the Google Cloud Console. I have tried redeploying the application numerous times and also clearing my browser cache, but I still get the same behavior. When I access the files directly, such as `https://my-app.appspot.com/static/style.css`, I see a 404 behavior page. I’ve also checked the logs and found no errors related to this scenario, which is perplexing. Are there any additional settings or configurations I might be missing? Do I need to specify MIME types or any other configurations for serving static files in App Engine? Any help would be greatly appreciated. I'm working on a web app that needs to handle this. Any help would be greatly appreciated! This is part of a larger service I'm building. What's the best practice here? I'm working in a Debian environment. This is part of a larger microservice I'm building. I'd be grateful for any help.