v0.17.1 - added Gunicorn to Docker

Dockerfile

@@ -1,12 +1,15 @@
 FROM python:3.13-slim
-
 WORKDIR /app
 
+# Copy requirements first (better layer caching)
 COPY requirements.txt .
 RUN pip install --no-cache-dir -r requirements.txt
 
+# Copy application code
 COPY . .
 
+# Expose port
 EXPOSE 5000
 
-CMD ["python", "app.py"]
+# Run with Gunicorn
+CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "4", "--timeout", "120", "--access-logfile", "-", "--error-logfile", "-", "app:app"]

app.py

@@ -28,7 +28,7 @@ app.config['PERMANENT_SESSION_LIFETIME'] = timedelta(hours=1)
 
 
 # 1. Define the version
-APP_VERSION = '0.17.0'  # Bumped version for modular architecture
+APP_VERSION = '0.17.1'  # Bumped version for modular architecture
 
 # 2. Inject it into all templates automatically
 @app.context_processor

requirements.txt

@@ -1,4 +1,5 @@
 Flask==3.1.2
 Werkzeug==3.1.5
 openpyxl
-Pillow
+Pillow
+gunicorn==21.2.0