性能监控Prometheus+Grafana

prometheus+node_exporter+mysqld_exporter+Grafana

Docker 方式安装

下载并运行docker 镜像

Plain Text $ docker run --name prometheus -d -p 127.0.0.1:9090:9090 quay.io/prometheus/prometheus

Docker 管理 prometheus

Plain Text # 运行 docker ps 查看所有服务 docker ps CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e9ebc2435387 quay.io/prometheus/prometheus "/bin/prometheus -..." 26 minutes ago Up 26 minutes 127.0.0.1:9090->9090/tcp prometheus

运行 docker start prometheus 启动服务

运行 docker stats prometheus 查看 prometheus 状态

运行 docker stop prometheus 停止服务

UI 页面跟上面一样都使用 IP：9090

1）修改Prometheus主配置文件

[root@Docker ~]# docker cp prometheus:/etc/prometheus/prometheus.yml $PWD
[root@Docker ~]# vim prometheus.yml
在Prometheus配置文件按以下内容修改：
scrape_configs:
  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
  - job_name: 'prometheus'

    # metrics_path defaults to '/metrics'
    # scheme defaults to 'http'.

    static_configs:
    - targets: ['localhost:9090']
      labels:
        instance: prometheus

  - job_name: linux
    static_configs:
    - targets: ['192.168.1.1:9100']                 #被监控端的IP地址和端口号(有多个被监控端可用 逗号 隔开)
      labels:
        instance: linux
  - job_name: mysql
    static_configs:
    - targets: ['192.168.1.1:9104']                 #被监控端的IP地址和端口号(有多个被监控端可用 逗号 隔开)
      labels:
        instance: mysql
[root@Docker ~]# docker cp $PWD/prometheus.yml prometheus:/etc/prometheus/prometheus.yml

2）重启Prometheus容器

[root@Docker ~]# docker restart prometheus

node_exporter

wget https://github.com/prometheus/node_exporter/releases/download/v1.5.0/node_exporter-1.5.0.darwin-amd64.tar.gz

服务器下载太慢时，可直接从github网站下载，并将压缩包上传至服务器。文章最后分享了网盘链接也可自行下载。

tar -zxvf node_exporter-1.2.2.linux-amd64.tar.gz -C /usr/local/ cd /usr/local/ mv node_exporter-1.2.2.linux-amd64/ node_exporter/

nohup ./node_exporter &

导入模板8919 ,12884,

mysqld_exporter

wget https://github.com/prometheus/mysqld_exporter/releases/download/v0.14.0/mysqld_exporter-0.14.0.linux-amd64.tar.gzls

tar -zxvf mysqld_exporter-0.14.0.linux-amd64.tar.gz

mv mysqld_exporter-0.14.0.linux-amd64 mysqld_exporter

cd mysqld_exporter

创建my.cnf

vi my.cnf

[client]
user=root
password=zdj1212
host=localhost
port=3306

启动

nohup ./mysqld_exporter –config.my-cnf=‘my.cnf’&

使用模板（14057）

Grafana 安装

docker run -d -p 3000:3000 grafana/grafana

默认密码admin/admin

添加数据原为prometheus

保存提示

Error reading Prometheus: Post “http://localhost/:9090/api/v1/query”: dial tcp 127.0.0.1:80: connect: connection refused

如果是docker启动的Prometheus，url改为下面的

http://host.docker.internal:9090

添加模板 (https://grafana.com/grafana/dashboards/ )

获取模板

node_exporter:8919 ,12884

mysqld_exporter:14057