# Dockerfile for Celery Workers Only
# Author: Anderson Henrique da Silva
# Date: 2025-10-07 18:20:00
#
# Lightweight container optimized for running Celery workers
# Does NOT include FastAPI server

FROM python:3.11-slim

LABEL maintainer="Anderson Henrique da Silva"
LABEL description="Cidadão.AI Celery Workers for 24/7 Auto-Investigation"

# Set working directory
WORKDIR /app

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

# Copy requirements
COPY requirements.txt .

# Install Python dependencies
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt && \
    pip install --no-cache-dir celery[redis] flower

# Copy source code
COPY src/ /app/src/
COPY alembic/ /app/alembic/
COPY alembic.ini /app/

# Create non-root user
RUN useradd -m -u 1000 celery && \
    chown -R celery:celery /app

# Create log directory
RUN mkdir -p /var/log/celery && \
    chown -R celery:celery /var/log/celery

# Switch to non-root user
USER celery

# Health check
HEALTHCHECK --interval=30s --timeout=10s --start-period=40s --retries=3 \
  CMD celery -A src.infrastructure.queue.celery_app inspect ping || exit 1

# Default command (can be overridden in docker-compose)
CMD ["celery", "-A", "src.infrastructure.queue.celery_app", "worker", "--loglevel=info"]