Dockerfile.celery-beat

# Multi-stage build for Celery Beat scheduler
# Stage 1: Builder
FROM python:3.11-slim AS builder

# Install build dependencies
RUN apt-get update && apt-get install -y \
    gcc \
    g++ \
    libmariadb-dev \
    pkg-config \
    && rm -rf /var/lib/apt/lists/*

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

# Copy requirements and install
COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Stage 2: Runtime
FROM python:3.11-slim

# Install runtime dependencies only
RUN apt-get update && apt-get install -y \
    libmariadb3 \
    && rm -rf /var/lib/apt/lists/* && \
    apt-get clean

# Create non-root user
RUN groupadd -r celery && useradd -r -g celery celery

# Set working directory
WORKDIR /app

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

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

# Create necessary directories
RUN mkdir -p /app/logs && \
    chown -R celery:celery /app

# Switch to non-root user
USER celery

# Environment variables
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

# Default command
CMD ["celery", "-A", "tasks", "beat", "--loglevel=info"]