nagios-plugin(log)
#!/usr/bin/env pythonimport datetime
import re
import sys
REG_SYSLOG = re.compile(r'(?P<logtime>\w+ \d+ [\d:]+) (?P<hostname>[\d\w.]+) (?P<progname>\w+)(\[\d*\])?: (?P<msg>.*)')
DELTA = datetime.timedelta(minutes=3)
MONTH_MAPPING = {"Jan":1,"Feb":2,"Mar":3,"Apr":4,"May":5,"Jun":6,"Jul":7,"Aug":8,"Sep":9,"Oct":10,"Nov":11,"Dec":12}
PROG_COUNTER = {}
KEYWORD_COUNTER = {}
KEYWORD = ['error','fatal']
def parsertime(s):
month, day, t = s.split()
hour, minute, second =
return datetime.datetime(2014,MONTH_MAPPING,int(day),hour,minute,second)
def count(metric, counter):
if metric in counter:
counter += 1
else:
counter = 1
def getMessages():
starttime = datetime.datetime.now() - DELTA
logfile = '/var/log/messages'
with open(logfile) as fd:
for line in fd:
logmatch = REG_SYSLOG.match(line)
if logmatch:
logdict = logmatch.groupdict()
logtime = parsertime(logdict['logtime'])
if logtime >= starttime:
count(logdict['progname'], PROG_COUNTER)
for k in KEYWORD:
if k in logdict['msg'].lower():
count(k, KEYWORD_COUNTER)
def print_msgs(status,msgs):
mapping = {0:'OK',1:'Warning',2:'Critcal',3:'Unknown'}
msg = '%s:%s' % (mapping,' | '.join(msgs))
print msg
sys.exit(status)
def check_counter():
msgs = []
status = 0
if PROG_COUNTER:
for c in PROG_COUNTER:
if PROG_COUNTER > 2:
msgs.append("prog %s has reached %s " % ( c, PROG_COUNTER))
status = 2
elif PROG_COUNTER <= 2:
msgs.append("prog %s has reached %s " % ( c, PROG_COUNTER))
status = 1
if KEYWORD_COUNTER:
status = 2
msgs.append("keywords have reached %s" % ','.join(['%s:%s'%(k,KEYWORD_COUNTER) for k in KEYWORD_COUNTER]))
print_msgs(status, msgs)
if __name__ == '__main__':
getMessages()
check_counter()
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