docker-compose.yml

services:
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    ports:
      - "127.0.0.1:9090:9090"
    volumes:
      - ./prometheus/prometheus.yml:/etc/prometheus/prometheus.yml
      - prometheus-data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=60d'
      - '--storage.tsdb.retention.size=30GB'
      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
      - '--web.console.templates=/usr/share/prometheus/consoles'
      - '--web.enable-lifecycle'
    restart: unless-stopped
    networks:
      - monitoring

  nginx:
    build:
      context: ./nginx
      dockerfile: Dockerfile
    container_name: nginx
    ports:
      - "127.0.0.1:9091:9091"
    environment:
      - PROMETHEUS_USER=${PROMETHEUS_USER:-admin}
      - PROMETHEUS_PASSWORD=${PROMETHEUS_PASSWORD:-prometheus}
    depends_on:
      - prometheus
    restart: unless-stopped
    networks:
      - monitoring

  postgres:
    image: postgres:16-alpine
    container_name: grafana-postgres
    environment:
      - POSTGRES_DB=${POSTGRES_DB:-grafana}
      - POSTGRES_USER=${POSTGRES_USER:-grafana}
      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD:-grafana}
    volumes:
      - postgres-data:/var/lib/postgresql/data
    restart: unless-stopped
    networks:
      - monitoring
    healthcheck:
      test: ["CMD-SHELL", "pg_isready -U grafana"]
      interval: 10s
      timeout: 5s
      retries: 5

  grafana:
    # Using custom Grafana image with Quantus branding
    # Based on 11.3.0 instead of latest (12.x) due to datasource provisioning bug
    # Issue: Grafana 12.x fails with "Datasource provisioning error: data source not found" 
    # on some platforms (Fedora/RHEL) while working on macOS - race condition in provisioning
    build:
      context: ./grafana
      dockerfile: Dockerfile
    image: quantus/grafana:11.3.0
    container_name: grafana
    ports:
      - "127.0.0.1:3000:3000"
    environment:
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=${GRAFANA_ADMIN_PASSWORD:-admin}
      - GF_SECURITY_FORCE_DEFAULT_ADMIN_PASSWORD_CHANGE=false
      - GF_USERS_ALLOW_SIGN_UP=false
      - GF_SERVER_ROOT_URL=${GRAFANA_ROOT_URL:-http://localhost:3000}
      - GF_SERVER_DOMAIN=${GRAFANA_DOMAIN:-localhost}
      - GF_INSTALL_PLUGINS=redis-datasource
      - GF_ANALYTICS_REPORTING_ENABLED=false
      - GF_ANALYTICS_CHECK_FOR_UPDATES=false
      - GF_USERS_DEFAULT_THEME=dark
      # Anonymous access - view dashboards without login, edit requires login
      - GF_AUTH_ANONYMOUS_ENABLED=true
      - GF_AUTH_ANONYMOUS_ORG_NAME=Main Org.
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Viewer
      # Set Welcome dashboard as home page
      - GF_DASHBOARDS_DEFAULT_HOME_DASHBOARD_PATH=/var/lib/grafana/dashboards/general/welcome.json
      # PostgreSQL Database Configuration
      - GF_DATABASE_TYPE=postgres
      - GF_DATABASE_HOST=postgres:5432
      - GF_DATABASE_NAME=${POSTGRES_DB:-grafana}
      - GF_DATABASE_USER=${POSTGRES_USER:-grafana}
      - GF_DATABASE_PASSWORD=${POSTGRES_PASSWORD:-grafana}
      - GF_DATABASE_SSL_MODE=disable
      # SMTP Configuration
      - GF_SMTP_ENABLED=${SMTP_ENABLED:-false}
      - GF_SMTP_HOST=${SMTP_HOST:-smtp.example.com:587}
      - GF_SMTP_USER=${SMTP_USER}
      - GF_SMTP_PASSWORD=${SMTP_PASSWORD}
      - GF_SMTP_FROM_ADDRESS=${SMTP_FROM_ADDRESS}
      - GF_SMTP_FROM_NAME=${SMTP_FROM_NAME:-Grafana Monitoring}
      - GF_SMTP_STARTTLS_POLICY=${SMTP_STARTTLS_POLICY:-MandatoryStartTLS}
      # Alert email addresses (comma-separated)
      - ALERT_EMAIL_ADDRESSES=${ALERT_EMAIL_ADDRESSES:-admin@example.com}
      # Telegram Configuration
      - TELEGRAM_BOT_TOKEN=${TELEGRAM_BOT_TOKEN}
      - TELEGRAM_CHAT_ID=${TELEGRAM_CHAT_ID}
      - ROCKET_WEBHOOK_URL=${ROCKET_WEBHOOK_URL}
    volumes:
      - grafana-data:/var/lib/grafana
      - ./grafana/provisioning/datasources:/etc/grafana/provisioning/datasources:ro
      - ./grafana/provisioning/dashboards:/etc/grafana/provisioning/dashboards:ro
      - ./grafana/dashboards:/var/lib/grafana/dashboards
      - ./grafana/branding:/etc/grafana/branding:ro
      - ./grafana/grafana.ini:/etc/grafana/grafana.ini:ro
      # Login background: must override image file (Grafana 11.3 uses url(public/img/g8_login_*.svg)). Bind mount = no stale build cache.
      - ./grafana/branding/quantus_login_dark.svg:/usr/share/grafana/public/img/g8_login_dark.svg:ro
      - ./grafana/branding/quantus_login_light.svg:/usr/share/grafana/public/img/g8_login_light.svg:ro
    depends_on:
      postgres:
        condition: service_healthy
      prometheus:
        condition: service_started
    restart: unless-stopped
    networks:
      - monitoring

  node-exporter:
    image: prom/node-exporter:latest
    container_name: node-exporter
    ports:
      - "127.0.0.1:9100:9100"
    command:
      - '--path.procfs=/host/proc'
      - '--path.sysfs=/host/sys'
      - '--path.rootfs=/host'
      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/host:ro
    restart: unless-stopped
    networks:
      - monitoring

networks:
  monitoring:
    driver: bridge

volumes:
  prometheus-data:
  grafana-data:
  postgres-data: