docker-compose.yml

# Prometheus + Grafana for the Polymarket arb bot.
#
# The bot runs on the HOST (not in a container) and serves Prometheus metrics at
# http://<health-host>:<health-port>/metrics  (default 127.0.0.1:8765).
# Prometheus (in this compose) scrapes it via host.docker.internal.
#
#   cd monitoring && docker compose up -d
#   Grafana:    http://localhost:3000   (anonymous admin, dashboard auto-loaded)
#   Prometheus: http://localhost:9090
#
# IMPORTANT: so Prometheus (in Docker) can reach the bot on the host, run the bot
# with --health-host 0.0.0.0 (it binds localhost-only by default):
#   ... paper-arb-sim --headless --profile --health-host 0.0.0.0 --health-port 8765
services:
  prometheus:
    image: prom/prometheus:latest
    container_name: arb-prometheus
    command:
      - --config.file=/etc/prometheus/prometheus.yml
      - --storage.tsdb.retention.time=15d
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml:ro
      - prometheus-data:/prometheus
    ports:
      - "9090:9090"
    extra_hosts:
      # Lets `host.docker.internal` resolve to the host on Linux (no-op on macOS,
      # where Docker Desktop provides it natively).
      - "host.docker.internal:host-gateway"
    restart: unless-stopped

  grafana:
    image: grafana/grafana:latest
    container_name: arb-grafana
    depends_on:
      - prometheus
    volumes:
      - ./grafana/provisioning:/etc/grafana/provisioning:ro
      - ./grafana/dashboards:/var/lib/grafana/dashboards:ro
      - grafana-data:/var/lib/grafana
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
      # Anonymous access so you can open the dashboard with zero login friction.
      # Remove these three lines if you expose Grafana beyond localhost.
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
      - GF_USERS_DEFAULT_THEME=dark
    ports:
      - "3000:3000"
    restart: unless-stopped

volumes:
  prometheus-data:
  grafana-data: