Update Dockerfile

Dockerfile

@@ -1,9 +1,10 @@
 # Use an official Python runtime as a parent image
 FROM python:3.9-slim
 
-# Set environment variables for Python
+# Set environment variables for Python and Matplotlib
 ENV PYTHONDONTWRITEBYTECODE 1
 ENV PYTHONUNBUFFERED 1
+ENV MPLCONFIGDIR=/app/.config/matplotlib
 
 # Set the working directory inside the container
 WORKDIR /app
@@ -23,9 +24,9 @@ COPY requirements.txt /app/
 # Install the dependencies specified in requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Create the necessary directories and ensure they have proper permissions
-RUN mkdir -p /app/uploads /app/static/uploads /app/static/results /tmp/flask_sessions /app/flask_sessions && \
-    chmod -R 777 /app/uploads /app/static/uploads /app/static/results /tmp/flask_sessions /app/flask_sessions
+# Create necessary directories and set proper permissions
+RUN mkdir -p /app/uploads /app/static/uploads /app/static/results /tmp/flask_sessions /app/flask_sessions /app/models /app/.config/matplotlib && \
+    chmod -R 777 /app/uploads /app/static/uploads /app/static/results /tmp/flask_sessions /app/flask_sessions /app/models /app/.config/matplotlib
 
 # Copy the entire application code to /app
 COPY . /app/