/usr/share/check_mk/checks/chrony is in check-mk-server 1.2.6p12-1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | #!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# | ____ _ _ __ __ _ __ |
# | / ___| |__ ___ ___| | __ | \/ | |/ / |
# | | | | '_ \ / _ \/ __| |/ / | |\/| | ' / |
# | | |___| | | | __/ (__| < | | | | . \ |
# | \____|_| |_|\___|\___|_|\_\___|_| |_|_|\_\ |
# | |
# | Copyright Mathias Kettner 2014 mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation in version 2. check_mk is distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY; with-
# out even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE. See the GNU General Public License for more de-
# ails. You should have received a copy of the GNU General Public
# License along with GNU Make; see the file COPYING. If not, write
# to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
# Boston, MA 02110-1301 USA.
ntp_default_levels = (10, 200.0, 500.0) # stratum, ms offset
# Example output from agent:
# <<<chrony>>>
# Reference ID : 212.18.3.18 (ntp1.m-online.net)
# Stratum : 3
# Ref time (UTC) : Tue Aug 19 16:56:21 2014
# System time : 0.000000353 seconds fast of NTP time
# Frequency : 10.725 ppm slow
# Residual freq : 195.475 ppm
# Skew : 10.639 ppm
# Root delay : 0.027455 seconds
# Root dispersion : 0.024512 seconds
def parse_chrony(info):
parsed = {}
for line in info:
varname, value = " ".join(line).split(":", 1)
parsed[varname.strip()] = value.strip()
return parsed
# We monitor all servers we have reached at least once
def inventory_chrony(info):
parsed = parse_chrony(info)
if parsed:
return [(None, "ntp_default_levels")]
def check_chrony(_no_item, params, info):
parsed = parse_chrony(info)
if not parsed:
yield 2, "No status information, chronyd probably not running"
return
# Prepare parameters
crit_stratum, warn, crit = params
# Check offset and stratum, output a few info texsts
offset = float(parsed["System time"].split()[0]) * 1000 # converted to ms
stratum = int(parsed["Stratum"])
# Check stratum
infotext = "stratum %d" % stratum
if stratum >= crit_stratum:
yield 2, infotext + " (maximum allowed is %d)" % (crit_stratum - 1)
else:
yield 0, infotext
# Check offset
status = 0
infotext = "offset %.4f ms" % offset
if abs(offset) >= crit:
status = 2
elif abs(offset) >= warn:
status = 1
if status:
infotext += " (levels at %.4f/%.4f ms)" % (warn, crit)
yield status, infotext, [ ("offset", offset, warn, crit, 0, None) ]
# Show additional information
yield 0, "reference: %s" % parsed["Reference ID"]
check_info["chrony"] = {
'check_function': check_chrony,
'inventory_function': inventory_chrony,
'service_description': 'NTP Time',
'has_perfdata': True,
'group': 'ntp_time',
}
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