Update Dockerfile

Dockerfile

@@ -10,7 +10,11 @@ RUN apt-get update && \
 
 # Install Python dependencies
 COPY requirements.txt .
-RUN pip install --no-cache-dir --upgrade pip && \
+
+# Create venv and install dependencies
+RUN python -m venv /opt/venv
+ENV PATH="/opt/venv/bin:$PATH"
+RUN pip install --upgrade pip && \
     pip install --no-cache-dir -r requirements.txt
 
 # Copy application code