Add a simple docker curl healthcheck

Dockerfile

@@ -26,6 +26,8 @@ FROM python:3.12-slim
 ENV PYTHONDONTWRITEBYTECODE=1
 ENV PYTHONUNBUFFERED=1
 
+RUN apt-get update -y && apt-get install curl -y
+
 WORKDIR /code
 
 COPY --from=node-builder /code/dist/ /code/dist/
@@ -38,4 +40,7 @@ ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
 EXPOSE 8080
 
+HEALTHCHECK --interval=10s --timeout=5s --start-period=3s --retries=3 \
+    CMD curl --fail http://localhost:8080/healthz || exit 1
+
 CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8080"]

backend/main.py

@@ -20,6 +20,12 @@
     allow_headers=["*"],
 )
 
+
+@app.get("/healthz")
+async def healthz() -> dict[str, str]:
+    return {"status": "healthy"}
+
+
 app.include_router(api_router, prefix="/api")
 app.include_router(ws_router, prefix="/ws")