/usr/lib/python3/dist-packages/glances/plugins/glances_alert.py is in glances 2.7.1.1-2.
This file is owned by root:root, with mode 0o644.
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 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2015 Nicolargo <nicolas@nicolargo.com>
#
# Glances is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Glances is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""Alert plugin."""
from datetime import datetime
from glances.logs import glances_logs
from glances.plugins.glances_plugin import GlancesPlugin
class Plugin(GlancesPlugin):
"""Glances alert plugin.
Only for display.
"""
def __init__(self, args=None):
"""Init the plugin."""
super(Plugin, self).__init__(args=args)
# We want to display the stat in the curse interface
self.display_curse = True
# Set the message position
self.align = 'bottom'
# Init the stats
self.reset()
def reset(self):
"""Reset/init the stats."""
self.stats = []
def update(self):
"""Nothing to do here. Just return the global glances_log."""
# Set the stats to the glances_logs
self.stats = glances_logs.get()
def msg_curse(self, args=None):
"""Return the dict to display in the curse interface."""
# Init the return message
ret = []
# Only process if display plugin enable...
if args.disable_log:
return ret
# Build the string message
# Header
if not self.stats:
msg = 'No warning or critical alert detected'
ret.append(self.curse_add_line(msg, "TITLE"))
else:
# Header
msg = 'Warning or critical alerts'
ret.append(self.curse_add_line(msg, "TITLE"))
logs_len = glances_logs.len()
if logs_len > 1:
msg = ' (last {} entries)'.format(logs_len)
else:
msg = ' (one entry)'
ret.append(self.curse_add_line(msg, "TITLE"))
# Loop over alerts
for alert in self.stats:
# New line
ret.append(self.curse_new_line())
# Start
msg = str(datetime.fromtimestamp(alert[0]))
ret.append(self.curse_add_line(msg))
# Duration
if alert[1] > 0:
# If finished display duration
msg = ' ({})'.format(datetime.fromtimestamp(alert[1]) -
datetime.fromtimestamp(alert[0]))
else:
msg = ' (ongoing)'
ret.append(self.curse_add_line(msg))
ret.append(self.curse_add_line(" - "))
# Infos
if alert[1] > 0:
# If finished do not display status
msg = '{} on {}'.format(alert[2], alert[3])
ret.append(self.curse_add_line(msg))
else:
msg = str(alert[3])
ret.append(self.curse_add_line(msg, decoration=alert[2]))
# Min / Mean / Max
if self.approx_equal(alert[6], alert[4], tolerance=0.1):
msg = ' ({:.1f})'.format(alert[5])
else:
msg = ' (Min:{:.1f} Mean:{:.1f} Max:{:.1f})'.format(
alert[6], alert[5], alert[4])
ret.append(self.curse_add_line(msg))
# Top processes
top_process = ', '.join([p['name'] for p in alert[9]])
if top_process != '':
msg = ': {}'.format(top_process)
ret.append(self.curse_add_line(msg))
return ret
def approx_equal(self, a, b, tolerance=0.0):
"""Compare a with b using the tolerance (if numerical)."""
if str(int(a)).isdigit() and str(int(b)).isdigit():
return abs(a - b) <= max(abs(a), abs(b)) * tolerance
else:
return a == b
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