prometheus alertmanager docker example

version: '2'

services:

    prometheus:
        image: prom/prometheus
        privileged: true
        volumes:
            - ./prometheus.yml:/etc/prometheus/prometheus.yml
            - ./alertmanger/alert.rules:/alert.rules
        command:
            - '--config.file=/etc/prometheus/prometheus.yml'
        ports:
            - '9090:9090'

    node-exporter:
        image: prom/node-exporter
        ports:
            - '9100:9100'

    alertmanager:
        image: prom/alertmanager
        privileged: true
        volumes:
             - ./alertmanager/alertmanager.yml:/alertmanager.yml
        command:
            - '--config.file=/alertmanager.yml'
        ports:
            - '9093:9093'