compose.yml

name: "grex_obs_dbs"

services:
  # Time series database
  prometheus:
    image: prom/prometheus:latest
    container_name: prometheus
    command:
      - "--config.file=/etc/prometheus/prometheus.yml"
      - "--enable-feature=remote-write-receiver"
      - "--storage.tsdb.retention.time=1y"
      - "--storage.tsdb.path=/prometheus"
    ports:
      - 9090:9090
    restart: always
    volumes:
      - /hdd/prometheus:/prometheus

  # Host monitoring
  node-exporter:
    image: prom/node-exporter:latest
    container_name: node-exporter
    restart: always
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro
      - /:/rootfs: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

  # OpenTelemetry / Prometheus Collector -> Grafana Bridge
  alloy:
    image: grafana/alloy:latest
    container_name: alloy
    ports:
      - 12345:12345 # Alloy WebUI
      - 4317:4317 # OTLP gRPC receiver
      - 4318:4318 # OTLP http receiver
    restart: always
    volumes:
      - ./config.alloy:/etc/alloy/config.alloy
    extra_hosts:
      - "host.docker.internal:host-gateway"
    command: run --server.http.listen-addr=0.0.0.0:12345 --storage.path=/var/lib/alloy/data /etc/alloy/config.alloy
    depends_on:
      - prometheus
    env_file:
      - path: ./alloy.env
        required: true

volumes:
  prom_data: