Update Dockerfile

Dockerfile

@@ -1,17 +1,21 @@
+# Use official Python slim image
 FROM python:3.11-slim
 
 # Set environment variables to avoid writing to root
-ENV HOME=/app
-ENV MPLCONFIGDIR=/tmp/.config/matplotlib
-ENV STREAMLIT_HOME=/tmp/.streamlit
 # Optional: Disable Usage Stats (telemetry) for Privacy / Stability
 ENV STREAMLIT_DISABLE_USAGE_STATS=true
 
-RUN mkdir -p /app/.streamlit /app/.config/matplotlib \
-    && chmod -R 777 /app/.streamlit /app/.config
-
+# Set working directory inside container
 WORKDIR /app
 
+# Run as root user (default in python:3.11-slim), but confirm permission for /app
+RUN chown -R root:root /app
+
+# Ensure /app and cache/config directories exist with proper permissions
+RUN chown -R root:root /app && \
+    mkdir -p /root/.cache /root/.config /root/.streamlit && \
+    chmod -R 777 /root/.cache /root/.config /root/.streamlit /app
+
 # Install dependencies
 RUN apt-get update && apt-get install -y \
     build-essential \
@@ -31,7 +35,7 @@ RUN apt-get update && apt-get install -y \
 COPY requirements.txt ./
 COPY src/ ./src/
 
-# Install Python dependencies
+# Install Python dependencies including streamlit
 RUN pip3 install -r requirements.txt
 
 # Expose port
@@ -40,5 +44,5 @@ EXPOSE 8501
 # Health check
 HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health
 
-# Entry point
+# Run Streamlit with no browser, on all interfaces
 ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]