参考链接：

systemctl stop firewalld

systemctl enable firewallld

setenforce 0

sed -i 's/^SELINUX=.*/SELINUX=permissive/' /etc/selinux/config

yum -y install docker

systemctl start docker

systemctl enable docker

#*************************************

docker search prometheus

docker pull docker.io/prom/prometheus:v2.2.1

mkdir  /var/lib/prometheus-data

docker run -d -p 9090:9090  -v /root/prometheus/prometheus-rules/alerting.rules:/etc/prometheus-rules/alerting.rules  -v /root/prometheus/prometheus.yml:/etc/prometheus/prometheus.yml -v /var/lib/prometheus-data:/prometheus --name prometheus docker.io/prom/prometheus:v2.2.1

#配置文件

cat /root/prometheus/prometheus.yml

global:
  scrape_interval: 1m
  scrape_timeout: 10s
  evaluation_interval: 1m
alerting:
  alertmanagers:
    - scheme: http
      static_configs:
      - targets:
        - "192.168.1.223:9093"


rule_files:
  - /etc/prometheus-rules/*.rules
scrape_configs:
  - job_name: 'prometheus'
    static_configs:
    - targets:
      - 192.168.1.223:9090

cat /root/prometheus/prometheus-rules/alerting.rules

groups:
- name: example-rules
  interval: 30s # defaults to global interval
  rules:
  - alert: Node Down
    expr: up{job="kubernetes-nodes"} == 0
    annotations:
      miqTarget: "ContainerNode"
      severity: "HIGH"
      message: "{{$labels.instance}} is down"