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diskfree.py
56 lines (50 loc) · 1.64 KB
/
diskfree.py
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#!/usr/bin/env python
## Check for disks space used
## Currently support Linux
import subprocess
import sys
import argparse
import os
def disk_free_linux(filesystem):
''' Grab filesystem usage '''
result = None
cmd = "df -h {0}".format(filesystem)
try:
result = subprocess.check_output(cmd, stderr=subprocess.STDOUT, shell=True)
except subprocess.CalledProcessError as e:
print "DISK_FREE UNKNOWN Error pulling disk information {0}".format(e.message)
sys.exit("3")
if result:
line = result.splitlines()[1]
usage = line.split()[4]
value = usage.rstrip("%")
return 100 - int(value)
else:
print "DISK_FREE UNKNOWN Error pulling disk information {0}".format(e.message)
sys.exit("3")
if __name__ == "__main__":
# Parse cmdline arguments
parser = argparse.ArgumentParser()
parser.add_argument(
"-w", "--warn", type=float,
help="Warn if Free Disk Space is less than N percent", required=True)
parser.add_argument(
"-c", "--critical", type=float,
help="Critical if Free Disk Space is less than N percent", required=True)
parser.add_argument(
"-f", "--filesystem",
help="Filesystem to check", required=True)
args = parser.parse_args()
diskfree = 100
if "Linux" in os.uname():
diskfree = disk_free_linux(args.filesystem)
alert = 'OK'
exit_code = 0
if diskfree <= args.warn:
alert = "WARNING"
exit_code = 1
if diskfree <= args.critical:
alert = "CRITICAL"
exit_code = 2
print "DISK_FREE {0} {1}".format(alert, diskfree)
sys.exit(exit_code)