CPU temperature collectd report on NetBSD

Sun, 22 Jan 2017 12:09:00 +0000

pkgsrc’s collectd does not support the thermal plugin, so in order to publish thermal information I had to use the exec plugin:

LoadPlugin exec
# more plugins

<Plugin exec>
        Exec "nobody:nogroup" "/home/imil/bin/temp.sh"
</Plugin>

And write this simple script that reads CPUs temperature from NetBSD’s envstat command:

$ cat bin/temp.sh 
#!/bin/sh

hostname=$(hostname)
interval=10

while :
do
        envstat|awk '/cpu[0-9]/ {printf "%s %s\n",$1,$3}'|while read c t
        do
                echo "PUTVAL ${hostname}/temperature/temperature-zone${c#cpu} interval=${interval} N:${t%%.*}"
        done
        sleep ${interval}
done

I then send those values to an influxdb server:

Temperature on iMil.net

CPU temperature collectd report on NetBSD