Listing 1. Temperature Monitoring with Python Scripting

---- monitor_temp.py ----
SHUTOFF_TEMP = 50.0
mail_list = ['fake.email@fakedomain.com']

import os, re, smtplib

def send_mail(toaddrs, msg):

    fromaddr = 'sysadmin@fakedomain.com'
    server = smtplib.SMTP('smtp.uq.edu.au')
    server.sendmail(fromaddr, toaddrs, msg)
    server.quit()

f = os.popen('hostname', "r")
hostname = f.readline().split()[0]
svc_proc = hostname[:4] + 'sp' + hostname[4:]
f.close()

f = os.popen("ipmitool -I lan -P password -H %s sensor | grep
'cpu[0-1].memtemp'" % svc_proc, "r")

mail_sent = False

for line in f.readlines():
    if mail_sent:
        break
    tokens = line.split()
    str = tokens[2]

    if str == 'NA':
        temp = 1.0
    else:
        temp = float(str)

    if temp >= SHUTOFF_TEMP:
        msg = 'Re: hot temperature initiated shutdown for %s\n' %
hostname
        msg += 'The CPU memtemp for %s exceeded %.1f.\n' % (hostname,
SHUTOFF_TEMP)
        msg += 'This node has been shutdown.\n'
        for address in mail_list:
            send_mail(address, msg)
        # Clean up scratch and power down
        os.system('rm -rf /scratch/*')
        os.system('/sbin/shutdown now -h')
        mail_sent = True