version: "3.8"

networks:
  host-network:
    name: host
    external: true
  prometheus-network:
    external: true
  traefik-network:
    external: true

services:
  prometheus-socat-service:
    image: docker.io/alpine/socat
    hostname: prometheus-socat-service-host
    command: tcp-listen:2375,fork,reuseaddr unix-connect:/var/run/docker.sock
    environment:
      - DS_NODE_NAME={{.Node.Hostname}}
      - DS_SERVICE_NAME={{.Service.Name}}
      - DS_TASK_NAME={{.Task.Name}}
    volumes:
      - type: bind
        source: /var/run/docker.sock
        target: /var/run/docker.sock
    networks:
      - prometheus-network
    deploy:
      mode: global
      placement:
        constraints:
          - node.role == manager

  prometheus-service:
    image: docker.io/prom/prometheus:latest
    hostname: prometheus-service-host
    tty: true
    environment:
      - DS_NODE_NAME={{.Node.Hostname}}
      - DS_SERVICE_NAME={{.Service.Name}}
      - DS_TASK_NAME={{.Task.Name}}
    networks:
      - prometheus-network
    ports:
      - target: 9090
        published: 9090
        protocol: tcp 
        mode: ingress
    volumes:
      - type: bind
        source: /home/gfs-data/prometheus/etc
        target: /etc/prometheus
        read_only: true
      - type: bind
        source: /home/gfs-data/prometheus/data
        target: /prometheus
        read_only: false
    ##command:
      ##- --config.file=/etc/prometheus/prometheus.yml 
      ##- --storage.tsdb.path=/prometheus 
      ##- --web.console.libraries=/usr/share/prometheus/console_libraries 
      ##- --web.console.templates=/usr/share/prometheus/consoles
    deploy:
      mode: replicated
      replicas: 1