Ubuntu + Python3 安装使用grafana + prometheus 笔记

迈不过友情╰ 2022-05-25 12:09 205阅读 0赞

**一、安装Prometheus**

1、下载最新版Prometheus： [https://prometheus.io/download/][https_prometheus.io_download]

[prometheus-2.2.1.linux-amd64.tar.gz][]

2、解压文件

tar xvfz prometheus-\*.tar.gzcd prometheus-\*

3、启动服务（用默认配置文件）

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

4、浏览器访问

[http://localhost:9090][http_localhost_9090]

5、修改配置文件增加数据收集 export

vi prometheus.yml

在scrape\_configs下增加 job

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']
    
      - job_name: 'my_demo'
    
        # metrics_path defaults to '/metrics'
        # scheme defaults to 'http'.
    
    # 增加监听的 IP 端口，稍后用Python起一个http服务
        static_configs:
          - targets: ['10.10.10.10:9091']

6、Python3 客户端， 启动一个http服务

安装  prometheus\_client

pip install prometheus\_client

from prometheus_client import start_http_server, Gauge
    import time
    import random
    
    start_http_server(9091)
    g = Gauge('name', 'lable', '')
    
    while True:
        g.set(random.random())
        time.sleep(5)

**二、配置 grafana 显示图表**

1、安装 启动查看官网Ubuntu安装说明

安装

wget https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana_5.1.2_amd64.deb
    sudo apt-get install -y adduser libfontconfig
    sudo dpkg -i grafana_5.1.2_amd64.deb

启动服务

sudo service grafana-server start

访问 frafana

http://serverip:3000

2、配置 prometheus数据源

进入configuration DataSource

添加一个DataSource

Tpye 选择Prometheus

url输入Prometheus 的IP 端口

保存并测试

3、新建 DashBoard 并编辑

输入Prometheus 查询语句

![70][]

类似于这样的结构

数据名字\{instance="job 监听的ip 和端口",job="job\_name"\}

test\_date\{instance="10.10.10.10:9091",job="my\_demo"\}

到这里数据就可以实时显示在grafana上了，如果需要更强大的图表功能还需要下载插件

[https_prometheus.io_download]: https://prometheus.io/download/
[prometheus-2.2.1.linux-amd64.tar.gz]: https://github.com/prometheus/prometheus/releases/download/v2.2.1/prometheus-2.2.1.linux-amd64.tar.gz
[http_localhost_9090]: http://localhost:9090/
[70]: /images/20220525/23352497a0ea4259a0837639ed4004aa.png