/usr/lib/python3/dist-packages/glances/amps_list.py is in glances 2.11.1-3.
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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 | # -*- coding: utf-8 -*-
#
# This file is part of Glances.
#
# Copyright (C) 2017 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/>.
"""Manage the AMPs list."""
import os
import re
import threading
from glances.compat import listkeys, iteritems
from glances.logger import logger
from glances.globals import amps_path
from glances.processes import glances_processes
class AmpsList(object):
"""This class describes the optional application monitoring process list.
The AMP list is a list of processes with a specific monitoring action.
The list (Python list) is composed of items (Python dict).
An item is defined (dict keys):
*...
"""
# The dict
__amps_dict = {}
def __init__(self, args, config):
"""Init the AMPs list."""
self.args = args
self.config = config
# Load the AMP configurations / scripts
self.load_configs()
def load_configs(self):
"""Load the AMP configuration files."""
if self.config is None:
return False
# Display a warning (deprecated) message if the monitor section exist
if "monitor" in self.config.sections():
logger.warning("A deprecated [monitor] section exists in the Glances configuration file. You should use the new Applications Monitoring Process module instead (http://glances.readthedocs.io/en/develop/aoa/amps.html).")
header = "glances_"
# For each AMP scrip, call the load_config method
for s in self.config.sections():
if s.startswith("amp_"):
# An AMP section exists in the configuration file
# If an AMP script exist in the glances/amps folder, use it
amp_conf_name = s[4:]
amp_script = os.path.join(amps_path, header + s[4:] + ".py")
if not os.path.exists(amp_script):
# If not, use the default script
amp_script = os.path.join(amps_path, "glances_default.py")
try:
amp = __import__(os.path.basename(amp_script)[:-3])
except ImportError as e:
logger.warning("Cannot load {}, you need to install an external Python package ({})".format(os.path.basename(amp_script), e))
except Exception as e:
logger.warning("Cannot load {} ({})".format(os.path.basename(amp_script), e))
else:
# Add the AMP to the dictionary
# The key is the AMP name
# for example, the file glances_xxx.py
# generate self._amps_list["xxx"] = ...
self.__amps_dict[amp_conf_name] = amp.Amp(name=amp_conf_name, args=self.args)
# Load the AMP configuration
self.__amps_dict[amp_conf_name].load_config(self.config)
# Log AMPs list
logger.debug("AMPs list: {}".format(self.getList()))
return True
def __str__(self):
return str(self.__amps_dict)
def __repr__(self):
return self.__amps_dict
def __getitem__(self, item):
return self.__amps_dict[item]
def __len__(self):
return len(self.__amps_dict)
def update(self):
"""Update the command result attributed."""
# Search application monitored processes by a regular expression
processlist = glances_processes.getalllist()
# Iter upon the AMPs dict
for k, v in iteritems(self.get()):
if not v.enable():
# Do not update if the enable tag is set
continue
try:
amps_list = [p for p in processlist for c in p['cmdline'] if re.search(v.regex(), c) is not None]
except TypeError:
continue
if len(amps_list) > 0:
# At least one process is matching the regex
logger.debug("AMPS: {} process detected (PID={})".format(k, amps_list[0]['pid']))
# Call the AMP update method
thread = threading.Thread(target=v.update_wrapper, args=[amps_list])
thread.start()
else:
# Set the process number to 0
v.set_count(0)
if v.count_min() is not None and v.count_min() > 0:
# Only display the "No running process message" is countmin is defined
v.set_result("No running process")
return self.__amps_dict
def getList(self):
"""Return the AMPs list."""
return listkeys(self.__amps_dict)
def get(self):
"""Return the AMPs dict."""
return self.__amps_dict
def set(self, new_dict):
"""Set the AMPs dict."""
self.__amps_dict = new_dict
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