Dockerfile

# Multi-stage Dockerfile for FIML

# Stage 1: Build stage
FROM python:3.11-slim AS builder

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    gcc \
    g++ \
    wget \
    git \
    && rm -rf /var/lib/apt/lists/*

# Install TA-Lib
RUN wget http://prdownloads.sourceforge.net/ta-lib/ta-lib-0.4.0-src.tar.gz && \
    tar -xzf ta-lib-0.4.0-src.tar.gz && \
    cd ta-lib/ && \
    ./configure --prefix=/usr && \
    make && \
    make install && \
    cd .. && \
    rm -rf ta-lib ta-lib-0.4.0-src.tar.gz

# Create virtual environment
RUN python -m venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Set working directory
WORKDIR /tmp/build

# Copy project files needed for installation
COPY pyproject.toml README.md ./
COPY fiml ./fiml

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip setuptools wheel && \
    pip install --no-cache-dir .

# Stage 2: Runtime stage
FROM python:3.11-slim

# Install runtime dependencies
RUN apt-get update && apt-get install -y \
    libgomp1 \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy TA-Lib from builder
COPY --from=builder /usr/lib/libta_lib.* /usr/lib/
COPY --from=builder /usr/include/ta-lib/ /usr/include/ta-lib/

# Copy virtual environment from builder
COPY --from=builder /opt/venv /opt/venv
ENV PATH="/opt/venv/bin:$PATH"

# Create app user
RUN useradd -m -u 1000 fiml && \
    mkdir -p /app && \
    chown -R fiml:fiml /app

# Set working directory
WORKDIR /app

# Copy application code
COPY --chown=fiml:fiml . .

# Switch to app user
USER fiml

# Expose ports
EXPOSE 8000 9090

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Default command
CMD ["uvicorn", "fiml.server:app", "--host", "0.0.0.0", "--port", "8000", "--workers", "4"]