FROM prom/prometheus:v2.45.0

# Copy configuration files
COPY prometheus.yml /etc/prometheus/prometheus.yml
COPY alert_rules.yml /etc/prometheus/rules/alert_rules.yml

# Create directories for rules
USER root
RUN mkdir -p /etc/prometheus/rules && \
    chown -R nobody:nobody /etc/prometheus

USER nobody

# Expose Prometheus port
EXPOSE 9090

# Start Prometheus with configuration
CMD ["--config.file=/etc/prometheus/prometheus.yml", \
     "--storage.tsdb.path=/prometheus", \
     "--web.console.libraries=/usr/share/prometheus/console_libraries", \
     "--web.console.templates=/usr/share/prometheus/consoles", \
     "--web.enable-lifecycle", \
     "--storage.tsdb.retention.time=30d"]