FROM python:3.9-slim

# Install required system dependencies
RUN apt-get update && apt-get install -y \
    curl \
    docker.io \
    && rm -rf /var/lib/apt/lists/*

# Set working directory
WORKDIR /app

# Copy requirements first to leverage Docker cache
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the healthcheck script
COPY healthcheck.py .

# Set environment variables
ENV PYTHONUNBUFFERED=1
ENV BASE_URL="https://puppeteer.workwithkora.com"
ENV TEST_URL="https://www.google.com"
ENV API_KEY="Q7Sd#hhFkyHy*T"
ENV TARGET_CONTAINER="puppeteer-api"
ENV CHECK_INTERVAL=60

# Create docker group and user with docker group access
RUN groupadd -g 999 docker || true && \
    useradd -r -g docker -u 999 healthcheck && \
    chown -R healthcheck:docker /app

# Don't switch user - run as root for Docker socket access
# USER healthcheck

# Run the healthcheck script
CMD ["python", "healthcheck.py"]