I am experiencing a persistent deployment timeout issue with my Python FastAPI service in project attached. The build process appears to complete successfully, but the deployment fails consistently with a 5-minute timeout. Based on the logs, the failure occurs during the final step of uploading the built Docker image to the Railway registry.

Summary of the Issue:

• Service: Python (v3.11) FastAPI application.

• Region: europe-west4

• Problem: The deployment process times out after exactly 5 minutes.

• Point of Failure (from logs): The process hangs and eventually fails during the "importing to docker" or image upload phase. This step seems to take longer than the allowed 5 minutes.

Troubleshooting Steps Already Taken:

1. Reduced Dependencies: I have already minimized the packages in requirements.txt to reduce the final image size.

2. Switched Builders: I initially used Nixpacks and encountered the same timeout. I have since switched to Railpack, but the issue persists.

Logs:

Here is a snippet from my latest deployment attempt using Railpack, which shows the build succeeding before the timeout:

[Region: europe-west4]
 
╭────────────────╮
│ Railpack 0.2.1 │
╰────────────────╯
 
↳ Detected Python
↳ Using pip
 
Packages
──────────
python  │  3.11.13  │  railpack default (3.11)
 
Steps
──────────
▸ install
$ python -m venv /app/.venv
$ pip install -r requirements.txt
 
Deploy
──────────
$ python main.py
 
Successfully prepared Railpack plan for build

... (build steps complete successfully) ...

copy ., /app/.venv, /app
Cached
[railpack] merge ghcr.io/railwayapp/railpack-runtime:latest, $packages:mise, $build, $build
Cached
importing to docker
42s  <-- Note: This was a cached run. Uncached runs take > 5 minutes and time out.
[auth] sharing credentials for production-europe-west4-drams3a.railway-registry.com
0ms

<-- The process hangs here until it times out. -->

Specific Questions

• Is it possible to increase the deployment timeout period for my project?

• Is the 5-minute timeout a hard limit, particularly for users on the free plan?

• Given that the build is successful, is there a recommended strategy to optimize the image upload step from the europe-west4 region to prevent this timeout?

Thank you for your help. Below are my project's dependencies for your review.

requirements.txt

fastapi
uvicorn[standard]
transformers
torch