過年弄了一個 bourne shell script 可產出 IPMI sensor node-exporter text prom 版本

綠由

原本在 github 就有好用的 awk script ipmitool
但不管 FreeBSD, Linux 都要再另外裝 gawk 才能正常運作, 所以就決定寫一個以 bourne shell script 弄一個萬用版本

作法

• 利用 read line 的方式, 一行一行處理 ipmitool sensor 輸出資料
• 取出幾個分類: degreesC, RPM, Volts, discrete
• 組合成 node-exporter 格式

結果

#!/bin/sh
CHECKTITLE=''

while read -r line
do
    line=`echo line | sed 's;|;,;g'`
    if [ -n "`echoline | awk -F, '{print 2}' | grep na`" ]; then
        continue
    fi

    TMPTITLE=`echoline | awk -F, '{print 3}' | sed 's; ;;g'`

    case "TMPTITLE" in
        degreesC)
            node='node_ipmi_temperature_celsius'
            TITLE1="# HELP node Temperature sensor reading from ipmitool"
            TITLE2="# TYPEnode gauge"
            ;;
        RPM)
            node='node_ipmi_speed_rpm'
            TITLE1="# HELP node Fan sensor reading from ipmitool"
            TITLE2="# TYPEnode gauge"
            ;;
        Volts)
            node='node_ipmi_volts'
            TITLE1="# HELP node Voltage sensor reading from ipmitool"
            TITLE2="# TYPEnode gauge"
            ;;
        discrete)
            node='node_ipmi_status'
            TITLE1="# HELP node Chassis status sensor reading from ipmitool"
            TITLE2="# TYPEnode gauge"
    esac

    if [ "CHECKTITLE" != "TMPTITLE" ]; then
        echo TITLE1
        echoTITLE2
        CHECKTITLE=TMPTITLE
    fi

    FIELD1=`echoline | awk -F, '{print 1}' | tr [:upper:] [:lower:]`
    FIELD2=`echoline | awk -F, '{print 2}'`
    FIELD2=`printf "%f"FIELD2`
    node="node"'{sensor="'FIELD1'"} 'FIELD2
    echonode
done