V2.2.1: Membership & Billing, USDT TRC20 payment, VIP free indicators, AI Trading Radar, simplified strategy creation, system settings simplification, bug fixes and UI improvements

backend_api_python/Dockerfile

@@ -1,21 +1,30 @@
 # QuantDinger Backend API Dockerfile
-FROM python:3.12-slim
+FROM python:3.12-slim-bookworm
 
 # Set working directory
 WORKDIR /app
 
-# Install system dependencies
-RUN apt-get update && apt-get install -y --no-install-recommends \
-    gcc \
-    libffi-dev \
+# Use HTTPS mirror and install minimal runtime dependencies.
+# Keep image lean to avoid long downloads of full compiler toolchains.
+RUN sed -i 's|http://deb.debian.org|https://deb.debian.org|g' /etc/apt/sources.list.d/*.sources 2>/dev/null || true \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends --fix-missing \
     curl \
+    # Build deps (needed for some pyproject-based packages like ed25519-blake2b)
+    build-essential \
+    python3-dev \
+    libffi-dev \
+    libssl-dev \
     && rm -rf /var/lib/apt/lists/*
 
 # Copy dependency file
 COPY requirements.txt .
 
 # Install Python dependencies
-RUN pip install --no-cache-dir -r requirements.txt
+RUN pip install --no-cache-dir --prefer-binary --timeout 120 -r requirements.txt \
+    # Remove build deps to keep image small
+    && apt-get purge -y --auto-remove build-essential python3-dev libffi-dev libssl-dev \
+    && rm -rf /var/lib/apt/lists/*
 
 # Copy application code
 COPY . .