app.py

import os
import gradio as gr

gcp_credentials = os.getenv("GCP_CREDENTIALS")
with open("gcp-credentials.json", "w") as f:
    f.write(gcp_credentials)
    
os.environ['GOOGLE_APPLICATION_CREDENTIALS'] = './gcp-credentials.json'

with gr.Blocks() as demo:
    gr.Markdown(gcp_credentials)

demo.launch()