def __update__(self):
"""Update the stats."""
# Reset the list
self.reset()
if self.initok:
for chip in sensors.iter_detected_chips():
for feature in chip:
sensors_current = {}
if feature.name.startswith(b'temp'):
# Temperature sensor
sensors_current['unit'] = SENSOR_TEMP_UNIT
elif feature.name.startswith(b'fan'):
# Fan speed sensor
sensors_current['unit'] = SENSOR_FAN_UNIT
if sensors_current:
try:
sensors_current['label'] = feature.label
sensors_current['value'] = int(feature.get_value())
except SensorsError as e:
logger.debug("Cannot grab sensor stat(%s)" % e)
else:
self.sensors_list.append(sensors_current)
return self.sensors_list
def load_limits(self, config):
"""Load limits from the configuration file, if it exists."""
# By default set the history length to 3 points per second during one day
self._limits['history_size'] = 28800
if not hasattr(config, 'has_section'):
return False
# Read the global section
if config.has_section('global'):
self._limits['history_size'] = config.get_float_value(
'global', 'history_size', default=28800)
logger.debug("Load configuration key: {0} = {1}".format(
'history_size', self._limits['history_size']))
# Read the plugin specific section
if config.has_section(self.plugin_name):
for level, _ in config.items(self.plugin_name):
# Read limits
limit = '_'.join([self.plugin_name, level])
try:
self._limits[limit] = config.get_float_value(
self.plugin_name, level)
except ValueError:
self._limits[limit] = config.get_value(
self.plugin_name, level).split(",")
logger.debug("Load limit: {} = {}".format(
limit, self._limits[limit]))
return True
def load_exports(self, args=None):
"""Load all export modules in the 'exports' folder."""
if args is None:
return False
header = "glances_"
# Transform the arguments list into a dict
# The aim is to chec if the export module should be loaded
args_var = vars(locals()['args'])
for item in os.listdir(exports_path):
export_name = os.path.basename(item)[len(header):-3].lower()
if (item.startswith(header) and item.endswith(".py") and item !=
(header + "export.py") and item != (header + "history.py")
and args_var['export_' + export_name] is not None
and args_var['export_' + export_name] is not False):
# Import the export module
export_module = __import__(os.path.basename(item)[:-3])
# Add the export to the dictionary
# The key is the module name
# for example, the file glances_xxx.py
# generate self._exports_list["xxx"] = ...
self._exports[export_name] = export_module.Export(
args=args, config=self.config)
# Log plugins list
logger.debug("Available exports modules list: {}".format(
self.getExportList()))
return True
def filter(self, value):
"""Set the filter (as a sting) and compute the regular expression
A filter could be one of the following:
- python > Process name of cmd start with python
- .*python.* > Process name of cmd contain python
- username:nicolargo > Process of nicolargo user
"""
self._filter_input = value
if value is None:
self._filter = None
self._filter_key = None
else:
new_filter = value.split(':')
if len(new_filter) == 1:
self._filter = new_filter[0]
self._filter_key = None
else:
self._filter = new_filter[1]
self._filter_key = new_filter[0]
self._filter_re = None
if self.filter is not None:
logger.info("Set filter to {} on key {}".format(
self.filter, self.filter_key))
# Compute the regular expression
try:
self._filter_re = re.compile(self.filter)
logger.debug("Filter regex compilation OK: {}".format(
self.filter))
except Exception as e:
logger.error("Cannot compile filter regex: {} ({})".format(
self.filter, e))
self._filter = None
self._filter_re = None
self._filter_key = None
def run(self, stat_name, criticity, commands, mustache_dict=None):
"""Run the commands (in background).
- stats_name: plugin_name (+ header)
- criticity: criticity of the trigger
- commands: a list of command line with optional {{mustache}}
- mustache_dict: Plugin stats (can be use within {{mustache}})
Return True if the commands have been ran.
"""
if self.get(stat_name) == criticity or not self.start_timer.finished():
# Action already executed => Exit
return False
logger.debug("Run action {} for {} ({}) with stats {}".format(
commands, stat_name, criticity, mustache_dict))
# Run all actions in background
for cmd in commands:
# Replace {{arg}} by the dict one (Thk to {Mustache})
if pystache_tag:
cmd_full = pystache.render(cmd, mustache_dict)
else:
cmd_full = cmd
# Execute the action
logger.info("Action triggered for {} ({}): {}".format(stat_name, criticity, cmd_full))
logger.debug("Stats value for the trigger: {}".format(mustache_dict))
try:
Popen(cmd_full, shell=True)
except OSError as e:
logger.error("Can't execute the action ({})".format(e))
self.set(stat_name, criticity)
return True
def reset_stats_history(self):
"""Reset the stats history (dict of GlancesAttribute)."""
if self._history_enable():
reset_list = [a['name'] for a in self.get_items_history_list()]
logger.debug("Reset history for plugin {0} (items: {1})".format(
self.plugin_name, reset_list))
self.stats_history.reset()
def update(self):
"""Update the command result attributed."""
# Search application monitored processes by a regular expression
processlist = gl_processes.getalllist()
# Iter upon the AMPs dict
for k, v in iteritems(self.get()):
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 wrapper(*args, **kw):
ret = fct(*args, **kw)
logger.debug("%s %s %s return %s" %
(args[0].__class__.__name__,
args[0].__class__.__module__[len('glances_'):],
fct.__name__, ret))
return ret
def load_conf(self, section="opentsdb"):
"""Load the OpenTSDB configuration in the Glances configuration file."""
if self.config is None:
return False
try:
self.host = self.config.get_value(section, 'host')
self.port = self.config.get_value(section, 'port')
except NoSectionError:
logger.critical("No OpenTSDB configuration found")
return False
except NoOptionError as e:
logger.critical("Error in the OpenTSDB configuration (%s)" % e)
return False
else:
logger.debug("Load OpenTSDB from the Glances configuration file")
# Prefix is optional
try:
self.prefix = self.config.get_value(section, 'prefix')
except NoOptionError:
pass
# Tags are optional, comma separated key:value pairs.
try:
self.tags = self.config.get_value(section, 'tags')
except NoOptionError:
pass
return True
def export(self, name, columns, points):
"""Write the points to the InfluxDB server."""
logger.debug("Export {} stats to InfluxDB".format(name))
# Manage prefix
if self.prefix is not None:
name = self.prefix + '.' + name
# Create DB input
if self.version == INFLUXDB_08:
data = [{'name': name, 'columns': columns, 'points': [points]}]
else:
# Convert all int to float (mandatory for InfluxDB>0.9.2)
# Correct issue#750 and issue#749
for i, _ in enumerate(points):
try:
points[i] = float(points[i])
except (TypeError, ValueError) as e:
logger.debug(
"InfluxDB error during stat convertion %s=%s (%s)" %
(columns[i], points[i], e))
data = [{
'measurement': name,
'tags': self.parse_tags(self.tags),
'fields': dict(zip(columns, points))
}]
# Write input to the InfluxDB database
try:
self.client.write_points(data)
except Exception as e:
logger.error("Cannot export {} stats to InfluxDB ({})".format(
name, e))
def export(self, name, columns, points):
"""Write the points to the ES server."""
logger.debug("Export {} stats to ElasticSearch".format(name))
# Create DB input
# https://elasticsearch-py.readthedocs.io/en/master/helpers.html
actions = []
for c, p in zip(columns, points):
action = {
"_index": self.index,
"_type": name,
"_id": c,
"_source": {
"value": str(p),
"timestamp": datetime.now()
}
}
actions.append(action)
# Write input to the ES index
try:
helpers.bulk(self.client, actions)
except Exception as e:
logger.error("Cannot export {} stats to ElasticSearch ({})".format(
name, e))
def load_conf(self, section="cassandra"):
"""Load the Cassandra configuration in the Glances configuration file."""
if self.config is None:
return False
try:
self.host = self.config.get_value(section, 'host')
self.port = self.config.get_value(section, 'port')
self.keyspace = self.config.get_value(section, 'keyspace')
except NoSectionError:
logger.critical("No Cassandra configuration found")
return False
except NoOptionError as e:
logger.critical("Error in the Cassandra configuration (%s)" % e)
return False
else:
logger.debug("Load Cassandra from the Glances configuration file")
# Optionals keys
try:
self.protocol_version = self.config.get_value(
section, 'protocol_version')
except NoOptionError:
pass
try:
self.replication_factor = self.config.get_value(
section, 'replication_factor')
except NoOptionError:
pass
try:
self.table = self.config.get_value(section, 'table')
except NoOptionError:
self.table = self.host
return True
def __set_folder_list(self, section):
"""Init the monitored folder list.
The list is defined in the Glances configuration file.
"""
for l in range(1, self.__folder_list_max_size + 1):
value = {}
key = 'folder_' + str(l) + '_'
# Path is mandatory
try:
value['path'] = self.config.get_value(section, key + 'path')
except Exception as e:
logger.error("Cannot read folder list: {}".format(e))
continue
if value['path'] is None:
continue
# Optional conf keys
for i in ['careful', 'warning', 'critical']:
try:
value[i] = self.config.get_value(section, key + i)
except:
value[i] = None
logger.debug("No {} threshold for folder {}".format(
i, value["path"]))
# Add the item to the list
self.__folder_list.append(value)
def _port_scan_tcp(self, port):
"""Scan the (TCP) port structure (dict) and update the status key"""
ret = None
# Create and configure the scanning socket
try:
socket.setdefaulttimeout(port['timeout'])
_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
except Exception as e:
logger.debug("{0}: Error while creating scanning socket".format(
self.plugin_name))
# Scan port
ip = self._resolv_name(port['host'])
counter = Counter()
try:
ret = _socket.connect_ex((ip, int(port['port'])))
except Exception as e:
logger.debug("{0}: Error while scanning port {1} ({2})".format(
self.plugin_name, port, e))
else:
if ret == 0:
port['status'] = counter.get()
else:
port['status'] = False
finally:
_socket.close()
return ret
def _port_scan_icmp(self, port):
"""Scan the (ICMP) port structure (dict) and update the status key"""
ret = None
# Create the ping command
# Use the system ping command because it already have the steacky bit set
# Python can not create ICMP packet with non root right
cmd = ['ping', '-n' '-c', '1', self._resolv_name(port['host'])]
fnull = open(os.devnull, 'w')
try:
counter = Counter()
ret = subprocess.check_call(cmd,
stdout=fnull,
stderr=fnull,
close_fds=True)
if ret == 0:
port['status'] = counter.get()
else:
port['status'] = False
except Exception as e:
logger.debug("{0}: Error while pinging host ({2})".format(
self.plugin_name, port['host'], e))
return ret
def init_stats_history(self):
"""Init the stats history (dict of GlancesAttribute)."""
if self._history_enable():
init_list = [a['name'] for a in self.get_items_history_list()]
logger.debug(
"Stats history activated for plugin {0} (items: {1})".format(
self.plugin_name, init_list))
return GlancesHistory()
def get_docker_cpu(self, container_id, all_stats):
"""Return the container CPU usage.
Input: id is the full container id
all_stats is the output of the stats method of the Docker API
Output: a dict {'total': 1.49}
"""
cpu_new = {}
ret = {'total': 0.0}
# Read the stats
# For each container, you will find a pseudo-file cpuacct.stat,
# containing the CPU usage accumulated by the processes of the container.
# Those times are expressed in ticks of 1/USER_HZ of a second.
# On x86 systems, USER_HZ is 100.
try:
cpu_new['total'] = all_stats['cpu_stats']['cpu_usage'][
'total_usage']
cpu_new['system'] = all_stats['cpu_stats']['system_cpu_usage']
cpu_new['nb_core'] = len(
all_stats['cpu_stats']['cpu_usage']['percpu_usage'] or [])
except KeyError as e:
# all_stats do not have CPU information
logger.debug(
"Can not grab CPU usage for container {0} ({1})".format(
container_id, e))
logger.debug(all_stats)
else:
# Previous CPU stats stored in the cpu_old variable
if not hasattr(self, 'cpu_old'):
# First call, we init the cpu_old variable
self.cpu_old = {}
try:
self.cpu_old[container_id] = cpu_new
except (IOError, UnboundLocalError):
pass
if container_id not in self.cpu_old:
try:
self.cpu_old[container_id] = cpu_new
except (IOError, UnboundLocalError):
pass
else:
#
cpu_delta = float(cpu_new['total'] -
self.cpu_old[container_id]['total'])
system_delta = float(cpu_new['system'] -
self.cpu_old[container_id]['system'])
if cpu_delta > 0.0 and system_delta > 0.0:
ret['total'] = (cpu_delta / system_delta) * float(
cpu_new['nb_core']) * 100
# Save stats to compute next stats
self.cpu_old[container_id] = cpu_new
# Return the stats
return ret
def _resolv_name(self, hostname):
"""Convert hostname to IP address"""
ip = hostname
try:
ip = socket.gethostbyname(hostname)
except Exception as e:
logger.debug("{0}: Can not convert {1} to IP address ({2})".format(
self.plugin_name, hostname, e))
return ip
def load_config(self, config):
'''Load the outputs section of the configuration file'''
# Load the theme
if config is not None and config.has_section('outputs'):
logger.debug('Read the outputs section in the configuration file')
self.theme['name'] = config.get_value('outputs',
'curse_theme',
default='black')
logger.debug('Theme for the curse interface: {}'.format(
self.theme['name']))
def __init__(self):
"""Init batteries stats."""
try:
self.bat = batinfo.batteries()
self.initok = True
self.bat_list = []
self.update()
except Exception as e:
self.initok = False
logger.debug("Cannot init GlancesGrabBat class (%s)" % e)
def __init__(self, stats):
"""Init the class"""
logger.debug(
"ports plugin - Create thread for scan list {}".format(stats))
super(ThreadScanner, self).__init__()
# Event needed to stop properly the thread
self._stopper = threading.Event()
# The class return the stats as a list of dict
self._stats = stats
# Is part of Ports plugin
self.plugin_name = "ports"
def export(self, name, columns, points):
"""Export the stats to the Statsd server."""
for i in range(len(columns)):
if not isinstance(points[i], Number):
continue
stat_name = '{}.{}'.format(name, columns[i])
stat_value = points[i]
try:
self.client.gauge(stat_name, stat_value)
except Exception as e:
logger.error("Can not export stats to Statsd (%s)" % e)
logger.debug("Export {} stats to Statsd".format(name))
def get_export(self):
"""Overwrite the default export method.
- Only exports containers
- The key is the first container name
"""
ret = []
try:
ret = self.stats['containers']
except KeyError as e:
logger.debug("Docker export error {}".format(e))
return ret
def __init__(self, config=None, args=None):
"""Init the export class."""
# Export name (= module name without glances_)
self.export_name = self.__class__.__module__[len('glances_'):]
logger.debug("Init export interface %s" % self.export_name)
# Init the config & args
self.config = config
self.args = args
# By default export is disable
# Had to be set to True in the __init__ class of child
self.export_enable = False
def __init__(self, config=None, args=None):
logger.debug("[GlancesStats.__init__]")
# Set the config instance
self.config = config
# Set the argument instance
self.args = args
# Load plugins and exports modules
self.load_modules(self.args)
# Load the limits (for plugins)
self.load_limits(config)
def export(self, input_stats=None):
"""Export all the stats.
Each export module is ran in a dedicated thread.
"""
# threads = []
input_stats = input_stats or {}
for e in self._exports:
logger.debug("Export stats using the %s module" % e)
thread = threading.Thread(target=self._exports[e].update,
args=(input_stats, ))
# threads.append(thread)
thread.start()
def get_key(self, window):
# Catch ESC key AND numlock key (issue #163)
keycode = [0, 0]
keycode[0] = window.getch()
keycode[1] = window.getch()
if keycode != [-1, -1]:
logger.debug("Keypressed (code: %s)" % keycode)
if keycode[0] == 27 and keycode[1] != -1:
# Do not escape on specials keys
return -1
else:
return keycode[0]
def export(self, name, columns, points):
"""Export the stats to the Statsd server."""
for i in range(len(columns)):
if not isinstance(points[i], Number):
continue
stat_name = '{}.{}.{}'.format(self.prefix, name, columns[i])
stat_value = points[i]
tags = self.parse_tags(self.tags)
try:
self.client.send(stat_name, stat_value, **tags)
except Exception as e:
logger.error("Can not export stats %s to OpenTSDB (%s)" %
(name, e))
logger.debug("Export {} stats to OpenTSDB".format(name))
def __init__(self, docker_client, container_id):
"""Init the class:
docker_client: instance of Docker-py client
container_id: Id of the container"""
logger.debug("docker plugin - Create thread for container {}".format(
container_id[:12]))
super(ThreadDockerGrabber, self).__init__()
# Event needed to stop properly the thread
self._stopper = threading.Event()
# The docker-py return stats as a stream
self._container_id = container_id
self._stats_stream = docker_client.stats(container_id, decode=True)
# The class return the stats as a dict
self._stats = {}
def connect(self, version=None):
"""Connect to the Docker server."""
# Init connection to the Docker API
try:
if version is None:
ret = docker.Client(base_url='unix://var/run/docker.sock')
else:
ret = docker.Client(base_url='unix://var/run/docker.sock',
version=version)
except NameError:
# docker lib not found
return None
try:
ret.version()
except requests.exceptions.ConnectionError as e:
# Connexion error (Docker not detected)
# Let this message in debug mode
logger.debug("Can't connect to the Docker server (%s)" % e)
return None
except docker.errors.APIError as e:
if version is None:
# API error (Version mismatch ?)
logger.debug("Docker API error (%s)" % e)
# Try the connection with the server version
version = re.search(
'(?:server API version|server)\:\ (.*)\)\".*\)', str(e))
if version:
logger.debug("Try connection with Docker API version %s" %
version.group(1))
ret = self.connect(version=version.group(1))
else:
logger.debug("Can not retreive Docker server version")
ret = None
else:
# API error
logger.error("Docker API error (%s)" % e)
ret = None
except Exception as e:
# Others exceptions...
# Connexion error (Docker not detected)
logger.error("Can't connect to the Docker server (%s)" % e)
ret = None
# Log an info if Docker plugin is disabled
if ret is None:
logger.debug(
"Docker plugin is disable because an error has been detected")
return ret
