FreeNAS

This may not be a ld.so.conf problem but the error is:

/usr/local/lib/collectd/ipmi.so: Undefined symbol "ipmi_smi_setup_con"

workaround - use a python plugin to invoke ipmitool

import collectd
import string
import subprocess
from subprocess import Popen, PIPE

def read_func():
    lines = []
    p = Popen(['/usr/local/bin/ipmitool', 'sensor'], stdout=PIPE, stderr=PIPE, shell=False)
    data = p.communicate(input='')[0]
    lines = data.splitlines()

    if len(lines) > 0:
        for line in lines:
            F = line.split('|')
            type = None
            ftwo = F[2].lower()
            if 'rpm' in ftwo:
                typename = 'fanspeed'
            elif 'degre' in ftwo:
                typename = 'temperature'
            elif 'volt' in ftwo:
                typename = 'voltage'
            else:
                continue

            value = F[1].lstrip()
            value = value.strip()
            if value == 'na':
                continue

            name = F[0].lstrip()
            name = name.strip()
            val = collectd.Values(type = typename, type_instance = name)
            val.plugin = 'ipmi'
            val.dispatch(values=[value])

collectd.register_read(read_func)

PR for 11.2-stable: https://github.com/freenas/build/pull/166
master commit: https://github.com/freenas/build/commit/4dc4fee092883cef9a6719d66889c35c43d4dfd4

Merged to 11.2-stable.

QA: There should be no /usr/local/lib/collectd/ipmi.so and openipmi package installed any more. No other visible changes.

Docs PRs: https://github.com/freenas/freenas-docs/pull/648 [master], https://github.com/freenas/freenas-docs/pull/647 [angulargui]