version: '3.4'

services:
  influxdb:
    image: influxdb:latest
    command: 
      -config /etc/influxdb/influxdb.conf
    environment:
      INFLUXDB_ADMIN_USER: admin
      INFLUXDB_ADMIN_PASSWORD: admin123
    networks:
      - agents
      - grafana
    volumes:
      - /srv/docker/influxdb/data:/var/lib/influxdb
      - /srv/docker/influxdb/config:/etc/influxdb/config:ro
    deploy:
      replicas: 1

  telegraf:
    image: telegraf:latest
    environment:
      HOST_PROC: '/rootfs/proc'
      HOST_SYS: '/rootfs/sys'
      HOST_ETC: '/rootfs/etc'
    networks:
      - agents
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /sys:/rootfs/sys:ro
      - /proc:/rootfs/proc:ro
      - /run:/rootfs/run:ro
      - /etc:/rootfs/etc:ro
      - /srv/docker/influxdb/config:/etc/telegraf/
    deploy:
      mode: global   # Metes 1 instancia en cada nodo
      restart_policy:
        condition: on-failure
        delay: 5s
  
  grafana:
    image: grafana/grafana
    environment:
      GF_INSTALL_PLUGINS: 'grafana-clock-panel,grafana-piechart-panel,grafana-simple-json-datasource'
    volumes:
      - /srv/docker/influxdb/grafana/data:/var/lib/grafana/
    networks:
      - grafana
      - proxy
    depends_on:
      - influxdb
    deploy:
      replicas: 1
    ports:
      - 9002:3000

networks:
  agents:
    external: true
  grafana:
    external: true
  proxy:
    external: true