refactor dockerfile 2

Dockerfile

@@ -1,40 +1,59 @@
-# Stage 1: Build dependencies
+# ────────────────────────────────
+# 🔨 Stage 1: Build dependencies
+# ────────────────────────────────
 FROM python:3.11.11-slim AS build
 
+# ⏱️ Set environment variables for pip optimization during build
+ENV PIP_DEFAULT_TIMEOUT=100 \
+    PYTHONUNBUFFERED=1 \
+    PIP_DISABLE_PIP_VERSION_CHECK=1 \
+    PIP_NO_CACHE_DIR=1 \
+    PATH="/home/user/.local/bin:$PATH"
+
+# 🔧 Install system dependencies needed to build Python packages
 RUN apt-get update && apt-get install -y \
     build-essential \
     libjpeg-dev \
     zlib1g-dev \
     && rm -rf /var/lib/apt/lists/*
 
+# 👤 Create non-root user
 RUN useradd -m -u 1000 user
-
 USER user
-ENV PATH="/home/user/.local/bin:$PATH"
 
+# 📂 Set working directory
 WORKDIR /app
 
+# 📦 Install Python dependencies to user space
 COPY --chown=user requirements.txt .
-
 RUN pip install --no-cache-dir --user -r requirements.txt
 
-# Stage 2: Final image
+# ────────────────────────────────
+# 🏁 Stage 2: Final image (runtime only)
+# ────────────────────────────────
 FROM python:3.11.11-slim
 
+# 🔧 Install runtime libraries (build tools tidak dibutuhkan)
 RUN apt-get update && apt-get install -y \
     libjpeg-dev \
     zlib1g-dev \
     && rm -rf /var/lib/apt/lists/*
 
+# 👤 Create same user again in runtime
 RUN useradd -m -u 1000 user
 USER user
+
+# 📂 Set runtime env
 ENV PATH="/home/user/.local/bin:$PATH"
 
 WORKDIR /app
 
+# 🚚 Copy only installed packages from build stage
 COPY --from=build /home/user/.local /home/user/.local
+
+# 📦 Copy app code
 COPY --chown=user . .
 
+# 🌐 Expose port and launch
 EXPOSE 7860
 CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]
-