Docker Compose to Prometheus, PushGateway and Grafana setup

docker-compose.yml

version: '2.1'

networks:
  monitor-net:
    driver: bridge

volumes:
    prometheus_data: {}
    grafana_data: {}

services:

  prometheus:
    image: prom/prometheus:v2.1.0
    container_name: prometheus
    volumes:
      - ./prometheus/:/etc/prometheus/
      - prometheus_data:/prometheus
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
      - '--storage.tsdb.path=/prometheus'
      - '--web.console.libraries=/etc/prometheus/console_libraries'
      - '--web.console.templates=/etc/prometheus/consoles'
      - '--storage.tsdb.retention=200h'
      - '--web.enable-lifecycle'
    # restart: unless-stopped
    expose:
      - 9090
    networks:
      - monitor-net
    labels:
      org.label-schema.group: "monitoring"
  
  alertmanager:
    image: prom/alertmanager:v0.13.0
    container_name: alertmanager
    volumes: 
      - ./alertmanager/:/etc/alertmanager/
    command:
      - '--config.file=/etc/alertmanager/config.yml'
      - '--storage.path=/alertmanager'
    restart: unless-stopped
    expose:
      - 9093
    networks:
      - monitor-net
    labels:
      org.label-schema.group: "monitoring"

  pushgateway:
    image: prom/pushgateway
    container_name: pushgateway
    restart: unless-stopped
    expose:
      - 9091
    ports:
      - "9091:9091"
    networks:
      - monitor-net
    labels:
      org.label-schema.group: "monitoring"
  
  grafana:
    image: grafana/grafana:4.6.3
    container_name: grafana
    volumes:
      - grafana_data:/var/lib/grafana
      - ./grafana/datasources:/etc/grafana/datasources
      - ./grafana/dashboards:/etc/grafana/dashboards
      - ./grafana/setup.sh:/setup.sh
    entrypoint: /setup.sh
    environment:
      - GF_SECURITY_ADMIN_USER=${ADMIN_USER:-admin}
      - GF_SECURITY_ADMIN_PASSWORD=${ADMIN_PASSWORD:-admin}
      - GF_USERS_ALLOW_SIGN_UP=false
    restart: unless-stopped
    expose:
      - 3000
    networks:
      - monitor-net
    labels:
      org.label-schema.group: "monitoring"

Great documentation, those three tools are the golden triangle of system monitoring

I've found up-to-date docker-compose example here:
https://github.com/sa06/prometheus-pushgateway/blob/master/README.md