Working docker-compose.yaml added. Services start and work.

web/backend/.dockerignore

@@ -0,0 +1,18 @@
+__pycache__
+*.pyc
+*.pyo
+*.pyd
+.Python
+*.so
+*.egg
+*.egg-info
+dist
+build
+.venv
+venv
+.env
+.git
+.gitignore
+README.md
+Dockerfile
+.dockerignore

web/backend/Dockerfile

@@ -0,0 +1,54 @@
+FROM python:3.13-slim
+
+# Install FFmpeg and system dependencies
+RUN apt-get update && \
+    apt-get install -y --no-install-recommends \
+        ffmpeg \
+        ca-certificates \
+        && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+# Set Python environment variables
+ENV PYTHONDONTWRITEBYTECODE=1 \
+    PYTHONUNBUFFERED=1
+
+# Set working directory
+WORKDIR /app
+
+# ------------------------------------------------------------
+# Copy and install Python dependencies
+# ------------------------------------------------------------
+COPY web/backend/requirements-web.txt .
+RUN pip install --no-cache-dir -r requirements-web.txt
+
+# ------------------------------------------------------------
+# Copy the backend application code
+# ------------------------------------------------------------
+COPY web/backend /app/backend
+
+# ------------------------------------------------------------
+# Copy and install the audio_splitter package
+# ------------------------------------------------------------
+COPY audio_splitter /app/audio_splitter
+COPY setup.py pyproject.toml README.md /app/
+
+# Install audio_splitter as a package
+RUN pip install --no-cache-dir /app
+
+# ------------------------------------------------------------
+# Create a non-root user
+# ------------------------------------------------------------
+RUN addgroup --system --gid 1000 appgroup && \
+    adduser --system --uid 1000 --ingroup appgroup appuser && \
+    chown -R appuser:appgroup /app
+
+USER appuser
+
+# ------------------------------------------------------------
+# Expose port and start
+# ------------------------------------------------------------
+EXPOSE 8000
+
+# PYTHONPATH is already /app by default because we set WORKDIR /app
+CMD ["uvicorn", "backend.main:app", "--host", "0.0.0.0", "--port", "8000"]

web/backend/main.py

@@ -7,7 +7,7 @@ from fastapi.middleware.cors import CORSMiddleware
 from backend.config import settings
 from backend.api import upload, split, status, download
 from backend.api.websocket import router as websocket_router
-from backend.services import progress_publisher  # Import the module
+from backend.services import progress_publisher
 
 app = FastAPI(
     title="Audio Splitter Web API",
@@ -24,9 +24,12 @@ app.add_middleware(
     allow_headers=["*"],
 )
 
-# Store the main event loop in the progress_publisher module
-# This avoids a circular import
-progress_publisher.MAIN_LOOP = asyncio.get_running_loop()
+
+@app.on_event("startup")
+async def startup_event():
+    """Store the main event loop for use in other threads."""
+    progress_publisher.MAIN_LOOP = asyncio.get_running_loop()
+
 
 # Include routers
 app.include_router(upload.router)

web/backend/requirements-web.txt

@@ -0,0 +1,8 @@
+fastapi>=0.104.0
+uvicorn[standard]>=0.24.0
+python-multipart>=0.0.6
+aiofiles>=23.2.0
+pydantic>=2.5.0
+pydantic-settings>=2.0.0
+python-dotenv>=1.0.0
+websockets>=12.0

web/backend/services/progress_publisher.py

@@ -5,7 +5,7 @@ from typing import Dict, Set
 
 from fastapi import WebSocket
 
-# This will be set by main.py when the app starts
+# This will be set by main.py during startup
 MAIN_LOOP = None
 
 active_connections: Dict[str, Set[WebSocket]] = {}
@@ -29,13 +29,19 @@ def publish_progress(task_id: str, progress: int, message: str, status: str = "p
     }
 
     to_remove = set()
+    # Get the loop to use: either the stored one or try to get the current loop
+    loop = MAIN_LOOP
+    if loop is None:
+        try:
+            loop = asyncio.get_running_loop()
+        except RuntimeError:
+            # No running loop, fallback to default event loop
+            loop = asyncio.get_event_loop()
+
     for websocket in active_connections.get(task_id, set()):
         try:
-            # Use the stored main loop, or fallback to getting the current loop
-            loop = MAIN_LOOP or asyncio.get_running_loop()
             asyncio.run_coroutine_threadsafe(websocket.send_json(data), loop)
         except Exception:
-            # Client disconnected or other error
             to_remove.add(websocket)
 
     # Clean up disconnected clients