#!/usr/bin/env python
"""Thomas R. N. Jansson (tjansson@tjansson.dk)
16-MAY-2010
"""

# The SNMP traps for the NetApp filer can be found in
# /net/netappfiler/vol0/etc/mib/traps.dat if the filer is 
# NFS automounted mounted on server.
# Example: the SNMP id for cpuBusyTimePerCent is
# snmp.1.3.6.1.4.1.789.1.2.1.3.0 
# and retrival of this value is done by 
# snmpget -v 1 -c public netappfiler 1.3.6.1.4.1.789.1.2.1.3.0
#
# Requires snmpget and assumes public community.  

import commands
import sys

# Provided a servername and a snmpid it returns the value stripped of bogus information.
def snmpget(iservername,isnmpid):
    runcmd = 'snmpget -v 1 -c public ' + iservername + ' ' + isnmpid
    output = commands.getoutput(runcmd)
    return output.split()[3]

snmpid      = "1.3.6.1.4.1.789.1.2.1.3.0"
warning     = 80
critical    = 95 
servername  = sys.argv[0].split('_')[1]

if len(sys.argv) == 2 and sys.argv[1]  == "config":
    print 'graph_title CPU usage on', servername
    print 'graph_args --base 1000 -r --lower-limit 0 --upper-limit 100'
    print 'graph_vlabel %'
    print 'graph_scale no'
    print 'graph_info This graph shows how CPU time is spent.'
    print 'graph_period second'
    print 'graph_category cpu'

    print 'usage.label cpu_usage '
    print 'usage.draw STACK'
    print 'usage.warning ', warning
    print 'usage.critical ', critical
    print 'usage.info CPU time spent by normal programs and daemons'
    sys.exit(0)

# Gathers info from the servers and gathers data
print 'usage.value '+snmpget(servername,snmpid)