《云原生监控体系构建实录：从Prometheus到Grafana的观测革命》

Prometheus+Grafana部署配置

Prometheus安装

下载Prometheus服务端

Download | PrometheusAn open-source monitoring system with a dimensional data model, flexible query language, efficient time series database and modern alerting approach.https://prometheus.io/download/

上传至服务器，解压

tar -zxvf prometheus-3.0.1.linux-amd64.tar.gz

cd prometheus-3.0.1.linux-amd64

运行

./prometheus --config.file="prometheus.yml"

后台运行

nohup ./prometheus --config.file=prometheus.yml &

当首次访问9090端口时，时间序列数据的洪流如同宇宙背景辐射般扑面而来。

Grafana安装

Grafana是一个可视化面板(Dashboard),有着非常漂亮的图表和布局展示,功能齐全的度量仪表盘和图形编辑器,支持Graphite、zabbix、InfluxDB、Prometheus

下载地址：Download Grafana | Grafana LabsOverview of how to download and install different versions of Grafana on different operating systems.https://grafana.com/grafana/download

yum localinstall -y grafana-6.5.0-1.x86_64.rpm

systemctl start grafana-server

访问页面http://服务器IP:3000 ，默认账号、密码admin/admin

Prometheus被监控端安装插件

下载插件（此处下载一个node 和 mysql插件）

在被监控端主机解压这两个文件

tar -zxvf node_exporter-1.8.2.linux-amd64.tar.gz 

node_exporter插件可直接运行

cd node_exporter-1.8.2.linux-amd64

node_exporter插件可直接运行

cd node_exporter-1.8.2.linux-amd64

nohup ./node_exporter &

mysqld_exporter需要连接到MySQL,需要授权

mysqld_exporter插件需要创建一个用户+密码的文件

tar -zxvf mysqld_exporter-0.16.0.linux-amd64.tar.gz

cd mysqld_exporter-0.16.0.linux-amd64

mysql> use mysql;

mysql> create user dbuser;

mysql> GRANT REPLICATION CLIENT, PROCESS ON *.* TO 'dbuser'@'localhost' identified by '123456';

mysql> GRANT SELECT ON performance_schema.* TO 'dbuser'@'localhost';

创建 .my.cnf 加入以下内容

[client]

user=dbuser

password=123456

启动mysqld_exporter

nohup ./mysqld_exporter --config.my-cnf=.my.cnf &

Prometheus服务端添加被监控端

cd prometheus-3.0.1.linux-amd64

vi prometheus.yml  加入

  - job_name: system-status

    static_configs:

    - targets: ['192.168.126.50:9100']

      labels:

        instance: 7-7



  - job_name: mysql-status

    static_configs:

    - targets: ['192.168.126.40:9104']

      labels:

        instance: 7-7-mysql

访问Prometheus   http://192.168.126.30:9090/targets

Grafana对接Prometheus

添加源数据

添加成功

Grafana添加图表

自带dashboard

下载地址

Grafana dashboards | Grafana LabsBrowse a library of official and community-built dashboards.https://grafana.com/grafana/dashboards

导入