Update Dockerfile

Dockerfile

@@ -2,20 +2,40 @@ FROM python:3.9-slim
 
 WORKDIR /app
 
+# Install system dependencies
 RUN apt-get update && apt-get install -y \
     build-essential \
     curl \
-    software-properties-common \
     git \
     && rm -rf /var/lib/apt/lists/*
 
-COPY requirements.txt ./
-COPY src/ ./src/
+# Create a non-root user and give permissions to /app
+RUN useradd -m -u 1000 streamlituser && \
+    chown -R streamlituser:streamlituser /app
 
-RUN pip3 install -r requirements.txt
+# Switch to non-root user
+USER streamlituser
 
-EXPOSE 8501
+# Copy requirements first to leverage Docker cache
+COPY --chown=streamlituser:streamlituser requirements.txt ./
+
+# Install Python dependencies
+RUN pip install --no-cache-dir -r requirements.txt
+
+# Copy application code
+COPY --chown=streamlituser:streamlituser src/ ./src/
 
-HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health
+# Environment variables
+ENV STREAMLIT_GATHER_USAGE_STATS=False \
+    STREAMLIT_SERVER_PORT=8501 \
+    STREAMLIT_SERVER_ADDRESS=0.0.0.0
+
+# Healthcheck
+HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
+    CMD curl --fail http://localhost:8501/_stcore/health
+
+# Expose port
+EXPOSE 8501
 
-ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py", "--server.port=8501", "--server.address=0.0.0.0"]
+# Entrypoint
+ENTRYPOINT ["streamlit", "run", "src/streamlit_app.py"]