implement a keep-alive service to periodically trigger Hugging Face Spaces.

Dockerfile

@@ -0,0 +1,13 @@
+FROM python:3.11-slim
+
+ENV PYTHONUNBUFFERED=1
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY app.py .
+
+EXPOSE 7860
+
+CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]

app.py

@@ -0,0 +1,44 @@
+import os
+import logging
+import requests
+from fastapi import FastAPI
+
+logging.basicConfig(level=logging.INFO)
+logger = logging.getLogger("hf-keepalive")
+
+app = FastAPI()
+
+HF_TOKEN = os.getenv("HF_TOKEN")
+
+# All private spaces
+SPACES = [
+    "https://jebin2-captioncreator.hf.space/run-command/create_publish?type=pexels&id=",
+    "https://jebin2-comic-panel-extractor.hf.space/",
+    "https://jebin2-paper.hf.space/",
+    "https://jebin2-stt.hf.space/",
+    "https://jebin2-tts.hf.space/",
+]
+
+TIMEOUT = 120
+
+
+@app.get("/")
+def home():
+    return {"status": "alive"}
+
+
+@app.get("/trigger")
+def trigger_all():
+    logger.info("Keepalive triggered. Calling all spaces...")
+
+    headers = {"Authorization": f"Bearer {HF_TOKEN}"}
+
+    for url in SPACES:
+        try:
+            logger.info(f"Calling {url}")
+            requests.get(url, headers=headers, timeout=TIMEOUT)
+        except Exception as e:
+            logger.warning(f"Failed: {url} -> {e}")
+
+    # No heavy response needed
+    return "OK"

requirements.txt

@@ -0,0 +1,3 @@
+fastapi
+uvicorn[standard]
+requests