prometheus - node_exporter安装使用

一、下载

在指定目录下,下载node_exporter安装文件,如:

cd /opt
mkdir node_exporter
cd node_exporter
sudo wget https://github.com/prometheus/node_exporter/releases/download/v0.17.0/node_exporter-0.17.0.linux-amd64.tar.gz

二、解压

将已经下载好的文件,解压:

//解压文件
tar -zxvf node_exporter-0.17.0.linux-amd64.tar.gz

//重命名
mv node_exporter-0.17.0.linux-amd64 ./node_exporter

三、运行

进入到安装目录下,运行文件:

//切换目录
cd node_exporter/
//运行
./node_exporter

出现以下信息即可:

INFO[0000] Starting node_exporter (version=0.17.0, branch=HEAD, revision=f6f6194a436b9a63d0439abc585c76b19a206b21)  source="node_exporter.go:82"
INFO[0000] Build context (go=go1.11.2, user=root@322511e06ced, date=20181130-15:51:33)  source="node_exporter.go:83"
INFO[0000] Enabled collectors:                           source="node_exporter.go:90"
INFO[0000]  - arp                                        source="node_exporter.go:97"
INFO[0000]  - bcache                                     source="node_exporter.go:97"
INFO[0000]  - bonding                                    source="node_exporter.go:97"
INFO[0000]  - conntrack                                  source="node_exporter.go:97"
INFO[0000]  - cpu                                        source="node_exporter.go:97"
INFO[0000]  - diskstats                                  source="node_exporter.go:97"
INFO[0000]  - edac                                       source="node_exporter.go:97"
INFO[0000]  - entropy                                    source="node_exporter.go:97"
INFO[0000]  - filefd                                     source="node_exporter.go:97"
INFO[0000]  - filesystem                                 source="node_exporter.go:97"
INFO[0000]  - hwmon                                      source="node_exporter.go:97"
INFO[0000]  - infiniband                                 source="node_exporter.go:97"
INFO[0000]  - ipvs                                       source="node_exporter.go:97"
INFO[0000]  - loadavg                                    source="node_exporter.go:97"
INFO[0000]  - mdadm                                      source="node_exporter.go:97"
INFO[0000]  - meminfo                                    source="node_exporter.go:97"
INFO[0000]  - netclass                                   source="node_exporter.go:97"
INFO[0000]  - netdev                                     source="node_exporter.go:97"
INFO[0000]  - netstat                                    source="node_exporter.go:97"
INFO[0000]  - nfs                                        source="node_exporter.go:97"
INFO[0000]  - nfsd                                       source="node_exporter.go:97"
INFO[0000]  - sockstat                                   source="node_exporter.go:97"
INFO[0000]  - stat                                       source="node_exporter.go:97"
INFO[0000]  - textfile                                   source="node_exporter.go:97"
INFO[0000]  - time                                       source="node_exporter.go:97"
INFO[0000]  - timex                                      source="node_exporter.go:97"
INFO[0000]  - uname                                      source="node_exporter.go:97"
INFO[0000]  - vmstat                                     source="node_exporter.go:97"
INFO[0000]  - xfs                                        source="node_exporter.go:97"
INFO[0000]  - zfs                                        source="node_exporter.go:97"
INFO[0000] Listening on :9100                            source="node_exporter.go:111"

后台运行指令:nohup ./node_exporter &

四、访问

在浏览器上输入ip + 9100端口即可访问.
如果是阿里云等服务器,需要打开安全组,允许9100端口访问

出现如下图信息即可：

image.png

五、加入prometheus监控中

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']
  #node_exporter监控  - 新增node_exporter相关job
  - job_name: 'node_exporter'
    static_configs:
    - targets: ['localhost:9100']

重启prometheus即可!