update caching

Dockerfile

@@ -7,24 +7,27 @@ RUN apt-get update && \
     apt-get clean && \
     rm -rf /var/lib/apt/lists/*
 
-# Create a non-root user
-RUN adduser --disabled-password --gecos '' appuser && \
-    mkdir -p /app/.streamlit /app/.cache /app/logs && \
-    chown -R appuser:appuser /app
+# Copy only requirements first for caching
+COPY requirements.txt .
 
-# Switch to non-root user
-USER appuser
+RUN pip install --no-cache-dir --upgrade pip && \
+    pip install --no-cache-dir -r requirements.txt
 
-# Copy source files
-COPY --chown=appuser:appuser . .
+# Add non-root user for security
+RUN useradd -ms /bin/bash appuser
 
-# Set environment variable for Streamlit config
-ENV STREAMLIT_CONFIG_DIR=/app/.streamlit \
-    PYTHONUNBUFFERED=1
+# Copy application files
+COPY . .
 
-RUN pip install --no-cache-dir --upgrade pip && \
-    pip install --no-cache-dir -r requirements.txt
+# Create .streamlit config dir with correct permissions
+RUN mkdir -p /app/.streamlit && chown -R appuser:appuser /app
+
+# Switch to non-root user
+USER appuser
+
+# Ensure PATH includes user-installed binaries (like streamlit)
+ENV PATH=$PATH:/home/appuser/.local/bin
 
 EXPOSE 8501
 
-CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]
+CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]