Fix Dockerfile for Hugging Face deployment

Dockerfile

@@ -1,38 +1,32 @@
-# ------------------------------------------------------------
-# Hugging Face Spaces - Docker Flask + TensorFlow + MediaPipe
-# ------------------------------------------------------------
-
-# Base image (Python + system deps)
+# Use lightweight Python image
 FROM python:3.10-slim
 
-# Disable interactive prompts
-ENV DEBIAN_FRONTEND=noninteractive
+# Prevent buffering and ensure logs show up instantly
 ENV PYTHONUNBUFFERED=1
-ENV PYTHONDONTWRITEBYTECODE=1
 
-# Install system packages
+# Install necessary system dependencies
 RUN apt-get update && apt-get install -y \
     libgl1 \
     libglib2.0-0 \
-    libopencv-core-dev \
+    libopencv-dev \
     libatlas-base-dev \
  && rm -rf /var/lib/apt/lists/*
 
-# Set work directory
+# Set working directory
 WORKDIR /app
 
-# Copy dependency list
-COPY requirements.txt .
+# Copy requirements first (to leverage Docker cache)
+COPY requirements.txt /app/
 
 # Upgrade pip and install dependencies
-RUN pip install --no-cache-dir --upgrade pip \
- && pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir --upgrade pip
+RUN pip install --no-cache-dir -r requirements.txt
 
-# Copy the full project
-COPY . .
+# Copy the rest of your application
+COPY . /app
 
-# Expose Space default port
+# Expose the port used by Hugging Face Spaces
 EXPOSE 7860
 
-# Command to run the Flask server
+# Run Flask app
 CMD ["python", "app.py"]

requirements.txt

@@ -4,5 +4,5 @@ numpy==1.26.4
 opencv-python-headless==4.9.0.80
 mediapipe==0.10.14
 Pillow==10.3.0
-gunicorn==21.2.0
 tensorflow-cpu==2.15.0
+gunicorn==21.2.0