Update Dockerfile

Dockerfile

@@ -1,14 +1,51 @@
+# Dockerfile for Resource Calculator Project
+# Optimized for FastAPI with robust network handling and health checks
+
 FROM python:3.11-slim
 
+# Build arguments for network timeout handling (as per reference)
+ARG PIP_DEFAULT_TIMEOUT=1000
+ARG PIP_RETRIES=5
+
+# Set environment variables
+ENV PIP_DEFAULT_TIMEOUT=${PIP_DEFAULT_TIMEOUT}
+ENV PIP_RETRIES=${PIP_RETRIES}
+ENV PYTHONUNBUFFERED=1
+ENV PORT=8000
+
+# Set working directory
 WORKDIR /app
 
+# Copy requirements file
 COPY requirements.txt .
-RUN pip install --no-cache-dir -r requirements.txt
 
-COPY . .
+# Install Python dependencies in optimized batches (as per reference style)
+# Note: Removed OpenCV/YOLO dependencies as they are not needed for this project
+RUN pip install --no-cache-dir --timeout=1000 \
+    fastapi>=0.104.0 \
+    uvicorn[standard]>=0.24.0 \
+    pydantic>=2.0.0 \
+    aiofiles
 
-ENV PYTHONUNBUFFERED=1
+# Copy application files explicitly
+COPY main.py .
+COPY calculator.py .
+COPY config.py .
+COPY index.html .
+COPY style.css .
+COPY script.js .
+
+# Create a non-privileged user for security
+RUN useradd -m -u 1000 user
+RUN chown -R user:user /app
+USER user
 
+# Expose port 8000
 EXPOSE 7860
 
+# Health check (as per reference)
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
+    CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:7860/')" || exit 1
+
+# Run the application
 CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]