linux下rabbitMQ安装以及配置prometheus进行监控

yum install erlang

wget http://www.rabbitmq.com/releases/rabbitmq-server/v3.6.6/rabbitmq-server-3.6.6-1.el7.noarch.rpm

// 使用刚刚下载的包进行安装
yum install rabbitmq-server-3.6.6-1.el7.noarch.rpm 
//启动
service rabbitmq-server start
//查看状态
service rabbitmq-server status
//关闭
service rabbitmq-server stop

下载exporter
进入https://github.com/kbudde/rabbitmq_exporter/releases 选择适合自己的版本


复制下载链接地址，直接到服务器执行wget进行下载

 wget https://github.com/kbudde/rabbitmq_exporter/releases/download/v0.20.0/rabbitmq_exporter-0.20.0.linux-amd64.tar.gz

解压

tar -xf rabbitmq_exporter-0.20.0.linux-amd64.tar.gz

运行exporter

RABBIT_USER=admin RABBIT_PASSWORD=sscfadmin OUTPUT_FORMAT=JSON PUBLISH_PORT=9099 RABBIT_URL=http://10.201.5.216:25672 nohup ./rabbitmq_exporter &

配置数据采集： vim /usr/local/prometheus/prometheus.yml 添加如下配置

 - job_name: 'myRabbit_export'
    scrape_interval: 60s
    scrape_timeout: 60s
    static_configs:
      - targets: ['10.201.5.216:9099']

打开prometheus的web端就可以看到配置的targets

vim /usr/local/prometheus/rules/rabbitmq_alert.yml ( 因为rabbitmq运行很正常，所以这里只是测试告警作用，所以用运行状态这一项来作为监控项，如果需要监控多项指标，就配置多个规则即可)

groups:
- name: NodeStatus
  rules:
  - alert: "rabbitmq实例正常"
    expr: rabbitmq_up == 1
    for: 5s
    labels:
      group: sscfops
      alertname: test_rabbitmq_monitor
      severity: High
    annotations:
      description: "rabbitmq {{ $labels.instance }} is ok"
      summary: "测试rabbitmq监控使用"
~                                    

说明：当expr表达式为真时，说明满足了告警条件。prometheus就会把告警推送给alertmanger。alertmanger会对prometheus传过来的告警进行一些列的静默，分组，抑制处理后，再应用上模板以后，通过（wechat，email，message，webhook）等方式把告警发送给对应的人或者组。

通过上面的步骤，告警邮件最终发送到邮箱，如下图