snmp-exporter的搭建

cxy_6

已于 2025-01-31 22:00:33 修改

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文章标签： prometheus

于 2025-01-31 21:51:35 首次发布

本文链接：https://blog.youkuaiyun.com/weixin_53662874/article/details/145408244

版权

1、创建/data/apps目录，并且下载snmp_exporter压缩包

mkdir -p /data/apps

cd /data/apps

wget https://mirror.ghproxy.com/https://github.com/prometheus/snmp_exporter/releases/download/v0.25.0/snmp_exporter-0.25.0.linux-amd64.tar.gz
或者
wget https://github.com/prometheus/snmp_exporter/releases/download/v0.25.0/snmp_exporter-0.25.0.linux-amd64.tar.gz

2、解压压缩包到/usr/local，并且重创建软链接

tar -zxvf snmp_exporter-0.25.0.linux-amd64.tar.gz -C /usr/local

cd /usr/local

ln -s snmp_exporter-0.25.0.linux-amd64 snmp_exporter

3、使用systemctl管理snmp_exporter

vi /usr/lib/systemd/system/snmp_exporter.service

[Unit]
Description=snmp_exporter
Documentation=https://prometheus.io/
After=network.target
[Service]
ExecStart=/app/module/snmp_exporter/snmp_exporter --web.listen-address=:9116 --config.file=/app/module/snmp_exporter/snmp.yml
ExecReload=/bin/kill -HUP $MAINPID
TimeoutStopSec=20s
Restart=always
[Install]
WantedBy=multi-user.target

4、设置开机自启并且开启snmp_exporter服务,最后查看服务状态

systemctl enable snmp_exporter && systemctl start snmp_exporter && systemctl status snmp_exporter

iptables -I INPUT -p tcp --dport 9116 -j ACCEPT 

iptables-save

5、在prometheus服务器追加snmp-exporter节点监控的配置

vi /usr/local/prometheus/prometheus.yml

- job_name: 'snmp_exporter'
    scrape_interval: 60s
    scrape_timeout: 30s
    metrics_path: /snmp
    params:
    auth: [public_v2]
    module: [if_mib]
    static_configs:
    - targets: ["SNMP设备IP地址","tcp://SNMP设备IP地址:1161"] # SNMP device and SNMP device using TCP transport and custom port.
    relabel_configs:
    - source_labels: [__address__]
      target_label: __param_target
    - source_labels: [__param_target]
      target_label: instance
    - target_label: __address__
      replacement: snmp-exporter节点地址:9116  # The SNMP exporter's real hostname:port.

6、检查prometheus.yml格式

cd /usr/local/prometheus/

./promtool check config prometheus.yml

7、热加载prometheus配置

curl  -X POST http://127.0.0.1:9090/-/reload

8、交换机设备命令

system-view

vlan 10 //创建snmp的vlan

interface vlan 10 //配置snmp_vlan的ip地址
 desc snmp_vlan
 ip add X.X.X.X 24 

interface g0/0/1 //划分vlan到接口上
 desc snmp
 port link access
 port default vlan 10

//snmp配置命令

snmp-agent
snmp-agent community read  public
snmp-agent sys-info version v2c v3
snmp-agent target-host trap address udp-domain X.X.X(snmp-exporter的IP地址) params securityname public v2c
snmp-agent trap source Vlanif10 
snmp-agent trap enable

quit

save