observability/docker-compose.yaml at main · zbioe/observability · GitHub

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networks:
  app:

volumes:
  loki_data:
  prometheus_data:
  grafana_data:
  alloy_data:

services:
  # Loki (Log Aggregation Store)
  loki:
    image: grafana/loki:2.9.2
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    volumes:
      - ./loki/local-config.yaml:/etc/loki/local-config.yaml
      - loki_data:/loki
    networks:
      - app

  # Grafana Alloy (The new Log Collector)
  alloy:
    image: grafana/alloy:latest
    volumes:
      # Rootless docker socket mapped inside the VM
      - /run/user/1000/docker.sock:/var/run/docker.sock:ro
      - ./alloy/config.alloy:/etc/alloy/config.alloy
      - /var/log:/var/log:ro # Mount host logs (optional)
      - alloy_data:/var/lib/alloy/data
    command:
      - run
      - --server.http.listen-addr=0.0.0.0:12345
      - --storage.path=/var/lib/alloy/data
      - /etc/alloy/config.alloy
    ports:
      - "12345:12345" # Alloy UI (very useful for debugging!)
    networks:
      - app

  # Prometheus (Metric Collector)
  prometheus:
    image: prom/prometheus:latest
    ports:
      - "9090:9090"
    volumes:
      - ./prometheus/prometheus.yaml:/etc/prometheus/prometheus.yaml
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yaml'
      - '--storage.tsdb.path=/prometheus'
      - '--storage.tsdb.retention.time=7d'
    networks:
      - app

  # Grafana (Visualisation UI)
  grafana:
    # build custom image to replace the logo
    build:
      context: ./grafana
      dockerfile: Dockerfile
    volumes:
      - grafana_data:/var/lib/grafana
      # provisioning
      - ./grafana/provisioning/datasources:/etc/grafana/provisioning/datasources
      - ./grafana/provisioning/dashboards:/etc/grafana/provisioning/dashboards
      - ./grafana/dashboards:/var/lib/grafana/dashboards
    environment:
      - GF_PATHS_PROVISIONING=/etc/grafana/provisioning
      - GF_PATHS_DATA=/var/lib/grafana
      - GF_PATHS_LOGS=/var/lib/grafana/logs
      - GF_PATHS_PLUGINS=/var/lib/grafana/plugins
      - GF_AUTH_ANONYMOUS_ENABLED=false # Set to true to skip login
      - GF_AUTH_ANONYMOUS_ORG_ROLE=Admin
    ports:
      - "3000:3000"
    networks:
      - app

  # Node Exporter (Hardware/OS metrics)
  node_exporter:
    image: prom/node-exporter:latest
    container_name: node_exporter
    restart: unless-stopped
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs:ro
      - /run/udev/data:/run/udev/data:ro
    command:
      - '--path.procfs=/host/proc'
      - '--path.rootfs=/rootfs'
      - '--path.sysfs=/host/sys'
      - '--collector.filesystem.mount-points-exclude=^/(sys|proc|dev|host|etc)($$|/)'
    ports:
      - "9100:9100"
    networks:
      - app

  # Flog (Fake Log Generator for demo data)
  flog:
    image: mingrammer/flog
    deploy:
      # Only add FLOG when the number of replicas is greater than 0
      replicas: ${FLOG_COUNT:-1}
    command: -f json -d 1s -l
    networks:
      - app

  # TODO next:
  # - blackbox
  # - alertmanager

  # TODO after next:
  # - Speedtest

  # Maybe TODO:
  # - Process Exporter

  # TODO After all:
  # - mongodb
  # - neo4j
  # - postgres