version: '3.8'

services:
  # ------------------------------------------------------------------
  # Appliance Hub: Persistence, Telemetry & Alerting
  # ------------------------------------------------------------------
  
  # Time Series Database
  victoriametrics:
    image: victoriametrics/victoria-metrics:v1.93.3
    ports:
      - "8428:8428"
    command:
      - "--storageDataPath=/vmetrics-data"
      - "--httpListenAddr=:8428"
    volumes:
      - vmetrics-data:/vmetrics-data
    networks:
      - appliance-network

  # Alert Evaluation Engine
  vmalert:
    image: victoriametrics/vmalert:v1.93.3
    ports:
      - "8880:8880"
    command:
      - "-rule=/etc/alerts/alerts.yml"
      - "-datasource.url=http://victoriametrics:8428"
      - "-notifier.url=http://alertmanager:9093"
      - "-remoteWrite.url=http://victoriametrics:8428"
      - "-remoteRead.url=http://victoriametrics:8428"
    volumes:
      - ./alerts:/etc/alerts
    depends_on:
      - victoriametrics
      - alertmanager
    networks:
      - appliance-network

  # Alert Routing, Grouping, Deduplication
  alertmanager:
    image: prom/alertmanager:v0.26.0
    ports:
      - "9093:9093"
    command:
      - "--config.file=/etc/alertmanager/config.yml"
      - "--storage.path=/alertmanager"
    volumes:
      - ./alertmanager-config.yml:/etc/alertmanager/config.yml
      - alertmanager-data:/alertmanager
    networks:
      - appliance-network

  # Log Aggregation
  loki:
    image: grafana/loki:2.9.1
    ports:
      - "3100:3100"
    command: -config.file=/etc/loki/local-config.yaml
    networks:
      - appliance-network

  # OpenTelemetry Collector (receives from Worker nodes)
  otel-collector:
    image: otel/opentelemetry-collector-contrib:0.87.0
    ports:
      - "4317:4317" # OTLP gRPC
      - "4318:4318" # OTLP HTTP
    command: ["--config=/etc/otelcol/config.yaml"]
    volumes:
      - ./otel-config.yaml:/etc/otelcol/config.yaml
    depends_on:
      - victoriametrics
      - loki
    networks:
      - appliance-network

volumes:
  vmetrics-data:
  alertmanager-data:

networks:
  appliance-network:
    driver: bridge