main.py

import modal

app = modal.App("chatpdf-app")

image = (
    modal.Image.debian_slim()
    .pip_install_from_requirements("requirements.txt")
    .with_file("/root/app/streamlit_app.py", local_path="streamlit_app.py")
)

@app.function(image=image)
@modal.web_server(port=7860, startup_timeout=120)
def launch():
    import subprocess
    import sys
    subprocess.run(
        ["streamlit", "run", "/root/app/streamlit_app.py", "--server.port=7860", "--server.address=0.0.0.0"],
        stdout=sys.stdout,
        stderr=sys.stderr
    )