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host.py
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host.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2009-2012:
# Gabes Jean, naparuba@gmail.com
# Gerhard Lausser, Gerhard.Lausser@consol.de
# Gregory Starck, g.starck@gmail.com
# Hartmut Goebel, h.goebel@goebel-consult.de
#
# This file is part of Shinken.
#
# Shinken is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Shinken 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 Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with Shinken. If not, see <http://www.gnu.org/licenses/>.
""" This is the main class for the Host. In fact it's mainly
about the configuration part. for the running one, it's better
to look at the schedulingitem class that manage all
scheduling/consome check smart things :)
"""
import time
from item import Items
from schedulingitem import SchedulingItem
from shinken.autoslots import AutoSlots
from shinken.util import format_t_into_dhms_format, to_hostnames_list, get_obj_name, to_svc_hst_distinct_lists, to_list_string_of_names, to_list_of_names, to_name_if_possible
from shinken.property import BoolProp, IntegerProp, FloatProp, CharProp, StringProp, ListProp
from shinken.graph import Graph
from shinken.macroresolver import MacroResolver
from shinken.eventhandler import EventHandler
from shinken.log import logger, console_logger
class Host(SchedulingItem):
# AutoSlots create the __slots__ with properties and
# running_properties names
__metaclass__ = AutoSlots
id = 1 # zero is reserved for host (primary node for parents)
ok_up = 'UP'
my_type = 'host'
# properties defined by configuration
# *required: is required in conf
# *default: default value if no set in conf
# *pythonize: function to call when transfort string to python object
# *fill_brok: if set, send to broker. there are two categories: full_status for initial and update status, check_result for check results
# *no_slots: do not take this property for __slots__
# Only for the inital call
# conf_send_preparation: if set, will pass the property to this function. It's used to "flatten"
# some dangerous properties like realms that are too 'linked' to be send like that.
# brok_transformation: if set, will call the function with the value of the property
# the major times it will be to flatten the data (like realm_name instead of the realm object).
properties = SchedulingItem.properties.copy()
properties.update({
'host_name': StringProp(fill_brok=['full_status', 'check_result', 'next_schedule']),
'alias': StringProp(fill_brok=['full_status']),
'display_name': StringProp(default='', fill_brok=['full_status']),
'address': StringProp(fill_brok=['full_status']),
'parents': ListProp(brok_transformation=to_hostnames_list, default='', fill_brok=['full_status']),
'hostgroups': StringProp(brok_transformation=to_list_string_of_names, default='', fill_brok=['full_status']),
'check_command': StringProp(default='_internal_host_up', fill_brok=['full_status']),
'initial_state': CharProp(default='u', fill_brok=['full_status']),
'max_check_attempts': IntegerProp(fill_brok=['full_status']),
'check_interval': IntegerProp(default='0', fill_brok=['full_status']),
'retry_interval': IntegerProp(default='0', fill_brok=['full_status']),
'active_checks_enabled': BoolProp(default='1', fill_brok=['full_status'], retention=True),
'passive_checks_enabled': BoolProp(default='1', fill_brok=['full_status'], retention=True),
'check_period': StringProp(brok_transformation=to_name_if_possible, fill_brok=['full_status']),
'obsess_over_host': BoolProp(default='0', fill_brok=['full_status'], retention=True),
'check_freshness': BoolProp(default='0', fill_brok=['full_status']),
'freshness_threshold': IntegerProp(default='0', fill_brok=['full_status']),
'event_handler': StringProp(default='', fill_brok=['full_status']),
'event_handler_enabled': BoolProp(default='0', fill_brok=['full_status']),
'low_flap_threshold': IntegerProp(default='25', fill_brok=['full_status']),
'high_flap_threshold': IntegerProp(default='50', fill_brok=['full_status']),
'flap_detection_enabled': BoolProp(default='1', fill_brok=['full_status'], retention=True),
'flap_detection_options': ListProp(default='o,d,u', fill_brok=['full_status']),
'process_perf_data': BoolProp(default='1', fill_brok=['full_status'], retention=True),
'retain_status_information': BoolProp(default='1', fill_brok=['full_status']),
'retain_nonstatus_information': BoolProp(default='1', fill_brok=['full_status']),
'contacts': StringProp(default='', brok_transformation=to_list_of_names, fill_brok=['full_status']),
'contact_groups': StringProp(default='', fill_brok=['full_status']),
'notification_interval': IntegerProp(default='60', fill_brok=['full_status']),
'first_notification_delay': IntegerProp(default='0', fill_brok=['full_status']),
'notification_period': StringProp(brok_transformation=to_name_if_possible, fill_brok=['full_status']),
'notification_options': ListProp(default='d,u,r,f', fill_brok=['full_status']),
'notifications_enabled': BoolProp(default='1', fill_brok=['full_status'], retention=True),
'stalking_options': ListProp(default='', fill_brok=['full_status']),
'notes': StringProp(default='', fill_brok=['full_status']),
'notes_url': StringProp(default='', fill_brok=['full_status']),
'action_url': StringProp(default='', fill_brok=['full_status']),
'icon_image': StringProp(default='', fill_brok=['full_status']),
'icon_image_alt': StringProp(default='', fill_brok=['full_status']),
'icon_set': StringProp(default='', fill_brok=['full_status']),
'vrml_image': StringProp(default='', fill_brok=['full_status']),
'statusmap_image': StringProp(default='', fill_brok=['full_status']),
# No slots for this 2 because begin property by a number seems bad
# it's stupid!
'2d_coords': StringProp(default='', fill_brok=['full_status'], no_slots=True),
'3d_coords': StringProp(default='', fill_brok=['full_status'], no_slots=True),
'failure_prediction_enabled': BoolProp(default='0', fill_brok=['full_status']),
### New to shinken
# 'fill_brok' is ok because in scheduler it's already
# a string from conf_send_preparation
'realm': StringProp(default=None, fill_brok=['full_status'], conf_send_preparation=get_obj_name),
'poller_tag': StringProp(default='None'),
'reactionner_tag': StringProp(default='None'),
'resultmodulations': StringProp(default=''),
'business_impact_modulations': StringProp(default=''),
'escalations': StringProp(default='', fill_brok=['full_status']),
'maintenance_period': StringProp(default='', brok_transformation=to_name_if_possible, fill_brok=['full_status']),
# Business impact value
'business_impact': IntegerProp(default='2', fill_brok=['full_status']),
# Load some triggers
'trigger': StringProp(default=''),
'trigger_name': ListProp(default=''),
})
# properties set only for running purpose
# retention: save/load this property from retention
running_properties = SchedulingItem.running_properties.copy()
running_properties.update({
'modified_attributes': IntegerProp(default=0L, fill_brok=['full_status'], retention=True),
'last_chk': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'next_chk': IntegerProp(default=0, fill_brok=['full_status', 'next_schedule'], retention=True),
'in_checking': BoolProp(default=False, fill_brok=['full_status', 'check_result', 'next_schedule']),
'latency': FloatProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'attempt': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'state': StringProp(default='PENDING', fill_brok=['full_status', 'check_result'], retention=True),
'state_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'state_type': StringProp(default='HARD', fill_brok=['full_status', 'check_result'], retention=True),
'state_type_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'current_event_id': StringProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'last_event_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'last_state': StringProp(default='PENDING', fill_brok=['full_status', 'check_result'], retention=True),
'last_state_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'last_state_type': StringProp(default='HARD', fill_brok=['full_status', 'check_result'], retention=True),
'last_state_change': FloatProp(default=0.0, fill_brok=['full_status', 'check_result'], retention=True),
'last_hard_state_change': FloatProp(default=0.0, fill_brok=['full_status', 'check_result'], retention=True),
'last_hard_state': StringProp(default='PENDING', fill_brok=['full_status'], retention=True),
'last_hard_state_id': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'last_time_up': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'last_time_down': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'last_time_unreachable': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'duration_sec': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'output': StringProp(default='', fill_brok=['full_status', 'check_result'], retention=True),
'long_output': StringProp(default='', fill_brok=['full_status', 'check_result'], retention=True),
'is_flapping': BoolProp(default=False, fill_brok=['full_status'], retention=True),
'flapping_comment_id': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
# No broks for _depend_of because of to much links to hosts/services
# dependencies for actions like notif of event handler, so AFTER check return
'act_depend_of': StringProp(default=[]),
# dependencies for checks raise, so BEFORE checks
'chk_depend_of': StringProp(default=[]),
# elements that depend of me, so the reverse than just uppper
'act_depend_of_me': StringProp(default=[]),
# elements that depend of me
'chk_depend_of_me': StringProp(default=[]),
'last_state_update': StringProp(default=0, fill_brok=['full_status'], retention=True),
# no brok ,to much links
'services': StringProp(default=[]),
# No broks, it's just internal, and checks have too links
'checks_in_progress': StringProp(default=[]),
# No broks, it's just internal, and checks have too links
'notifications_in_progress': StringProp(default={}, retention=True),
'downtimes': StringProp(default=[], fill_brok=['full_status'], retention=True),
'comments': StringProp(default=[], fill_brok=['full_status'], retention=True),
'flapping_changes': StringProp(default=[], fill_brok=['full_status'], retention=True),
'percent_state_change': FloatProp(default=0.0, fill_brok=['full_status', 'check_result'], retention=True),
'problem_has_been_acknowledged': BoolProp(default=False, fill_brok=['full_status'], retention=True),
'acknowledgement': StringProp(default=None, retention=True),
'acknowledgement_type': IntegerProp(default=1, fill_brok=['full_status', 'check_result'], retention=True),
'check_type': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'has_been_checked': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'should_be_scheduled': IntegerProp(default=1, fill_brok=['full_status'], retention=True),
'last_problem_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'current_problem_id': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'execution_time': FloatProp(default=0.0, fill_brok=['full_status', 'check_result'], retention=True),
'last_notification': FloatProp(default=0.0, fill_brok=['full_status'], retention=True),
'current_notification_number': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'current_notification_id': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'check_flapping_recovery_notification': BoolProp(default=True, fill_brok=['full_status'], retention=True),
'scheduled_downtime_depth': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'pending_flex_downtime': IntegerProp(default=0, fill_brok=['full_status'], retention=True),
'timeout': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'start_time': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'end_time': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'early_timeout': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'return_code': IntegerProp(default=0, fill_brok=['full_status', 'check_result'], retention=True),
'perf_data': StringProp(default='', fill_brok=['full_status', 'check_result'], retention=True),
'last_perf_data': StringProp(default='', retention=True),
'customs': StringProp(default={}, fill_brok=['full_status']),
'got_default_realm': BoolProp(default=False),
# use for having all contacts we have notified
# Warning: for the notified_contacts retention save, we save only the names of the contacts, and we should RELINK
# them when we load it.
'notified_contacts': StringProp(default=set(), retention=True, retention_preparation=to_list_of_names),
'in_scheduled_downtime': BoolProp(default=False, fill_brok=['full_status'], retention=True),
'in_scheduled_downtime_during_last_check': BoolProp(default=False, retention=True),
# put here checks and notif raised
'actions': StringProp(default=[]),
# and here broks raised
'broks': StringProp(default=[]),
# For knowing with which elements we are in relation
# of dep.
# childs are the hosts that have US as parent, so
# only a network dep
'childs': StringProp(brok_transformation=to_hostnames_list, default=[], fill_brok=['full_status']),
# Here it's the elements we are depending on
# so our parents as network relation, or a host
# we are depending in a hostdependency
# or even if we are business based.
'parent_dependencies': StringProp(brok_transformation=to_svc_hst_distinct_lists, default=set(), fill_brok=['full_status']),
# Here it's the guys that depend on us. So it's the total
# opposite of the parent_dependencies
'child_dependencies': StringProp(
brok_transformation=to_svc_hst_distinct_lists,
default=set(),
fill_brok=['full_status']),
### Problem/impact part
'is_problem': StringProp(default=False, fill_brok=['full_status']),
'is_impact': StringProp(default=False, fill_brok=['full_status']),
# the save value of our business_impact for "problems"
'my_own_business_impact': IntegerProp(default=-1, fill_brok=['full_status']),
# list of problems that make us an impact
'source_problems': StringProp(brok_transformation=to_svc_hst_distinct_lists, default=[], fill_brok=['full_status']),
# list of the impact I'm the cause of
'impacts': StringProp(brok_transformation=to_svc_hst_distinct_lists, default=[], fill_brok=['full_status']),
# keep a trace of the old state before being an impact
'state_before_impact': StringProp(default='PENDING'),
# keep a trace of the old state id before being an impact
'state_id_before_impact': StringProp(default=0),
# if the state change, we know so we do not revert it
'state_changed_since_impact': StringProp(default=False),
# BUSINESS CORRELATOR PART
# Say if we are business based rule or not
'got_business_rule': BoolProp(default=False, fill_brok=['full_status']),
# Our Dependency node for the business rule
'business_rule': StringProp(default=None),
# Manage the unknown/unreach during hard state
# From now its not really used
'in_hard_unknown_reach_phase': BoolProp(default=False, retention=True),
'was_in_hard_unknown_reach_phase': BoolProp(default=False, retention=True),
'state_before_hard_unknown_reach_phase': StringProp(default='UP', retention=True),
# Set if the element just change its father/son topology
'topology_change': BoolProp(default=False, fill_brok=['full_status']),
# Keep in mind our pack id afterthe cutting phase
'pack_id': IntegerProp(default=-1),
# Trigger list
'triggers': StringProp(default=[])
})
# Hosts macros and prop that give the information
# the prop can be callable or not
macros = {
'HOSTNAME': 'host_name',
'HOSTDISPLAYNAME': 'display_name',
'HOSTALIAS': 'alias',
'HOSTADDRESS': 'address',
'HOSTSTATE': 'state',
'HOSTSTATEID': 'state_id',
'LASTHOSTSTATE': 'last_state',
'LASTHOSTSTATEID': 'last_state_id',
'HOSTSTATETYPE': 'state_type',
'HOSTATTEMPT': 'attempt',
'MAXHOSTATTEMPTS': 'max_check_attempts',
'HOSTEVENTID': 'current_event_id',
'LASTHOSTEVENTID': 'last_event_id',
'HOSTPROBLEMID': 'current_problem_id',
'LASTHOSTPROBLEMID': 'last_problem_id',
'HOSTLATENCY': 'latency',
'HOSTEXECUTIONTIME': 'execution_time',
'HOSTDURATION': 'get_duration',
'HOSTDURATIONSEC': 'get_duration_sec',
'HOSTDOWNTIME': 'get_downtime',
'HOSTPERCENTCHANGE': 'percent_state_change',
'HOSTGROUPNAME': 'get_groupname',
'HOSTGROUPNAMES': 'get_groupnames',
'LASTHOSTCHECK': 'last_chk',
'LASTHOSTSTATECHANGE': 'last_state_change',
'LASTHOSTUP': 'last_time_up',
'LASTHOSTDOWN': 'last_time_down',
'LASTHOSTUNREACHABLE': 'last_time_unreachable',
'HOSTOUTPUT': 'output',
'LONGHOSTOUTPUT': 'long_output',
'HOSTPERFDATA': 'perf_data',
'LASTHOSTPERFDATA': 'last_perf_data',
'HOSTCHECKCOMMAND': 'get_check_command',
'HOSTACKAUTHOR': 'get_ack_author_name',
'HOSTACKAUTHORNAME': 'get_ack_author_name',
'HOSTACKAUTHORALIAS': 'get_ack_author_name',
'HOSTACKCOMMENT': 'get_ack_comment',
'HOSTACTIONURL': 'action_url',
'HOSTNOTESURL': 'notes_url',
'HOSTNOTES': 'notes',
'HOSTREALM': 'get_realm',
'TOTALHOSTSERVICES': 'get_total_services',
'TOTALHOSTSERVICESOK': 'get_total_services_ok',
'TOTALHOSTSERVICESWARNING': 'get_total_services_warning',
'TOTALHOSTSERVICESUNKNOWN': 'get_total_services_unknown',
'TOTALHOSTSERVICESCRITICAL': 'get_total_services_critical'
}
# This tab is used to transform old parameters name into new ones
# so from Nagios2 format, to Nagios3 ones.
# Or Shinken deprecated names like criticity
old_properties = {
'normal_check_interval': 'check_interval',
'retry_check_interval': 'retry_interval',
'criticity': 'business_impact',
'hostgroup': 'hostgroups',
## 'criticitymodulations': 'business_impact_modulations',
}
#######
# __ _ _ _
# / _(_) | | (_)
# ___ ___ _ __ | |_ _ __ _ _ _ _ __ __ _| |_ _ ___ _ __
# / __/ _ \| '_ \| _| |/ _` | | | | '__/ _` | __| |/ _ \| '_ \
# | (_| (_) | | | | | | | (_| | |_| | | | (_| | |_| | (_) | | | |
# \___\___/|_| |_|_| |_|\__, |\__,_|_| \__,_|\__|_|\___/|_| |_|
# __/ |
# |___/
######
# Fill adresse with host_name if not already set
def fill_predictive_missing_parameters(self):
if hasattr(self, 'host_name') and not hasattr(self, 'address'):
self.address = self.host_name
if hasattr(self, 'host_name') and not hasattr(self, 'alias'):
self.alias = self.host_name
# Check is required prop are set:
# contacts OR contactgroups is need
def is_correct(self):
state = True
cls = self.__class__
source = getattr(self, 'imported_from', 'unknown')
special_properties = ['check_period', 'notification_interval', 'check_period',
'notification_period']
for prop, entry in cls.properties.items():
if prop not in special_properties:
if not hasattr(self, prop) and entry.required:
logger.error("[host::%s] %s property not set" % (self.get_name(), prop))
state = False # Bad boy...
# Then look if we have some errors in the conf
# Juts print warnings, but raise errors
for err in self.configuration_warnings:
logger.warning("[host::%s] %s" % (self.get_name(), err))
# Raised all previously saw errors like unknown contacts and co
if self.configuration_errors != []:
state = False
for err in self.configuration_errors:
logger.error("[host::%s] %s" % (self.get_name(), err))
if not hasattr(self, 'notification_period'):
self.notification_period = None
# Ok now we manage special cases...
if self.notifications_enabled and self.contacts == []:
logger.warning("The host %s has no contacts nor contact_groups in (%s)" % (self.get_name(), source))
if getattr(self, 'event_handler', None) and not self.event_handler.is_valid():
logger.info("%s: my event_handler %s is invalid" % (self.get_name(), self.event_handler.command))
state = False
if getattr(self, 'check_command', None) is None:
logger.info("%s: I've got no check_command" % self.get_name())
state = False
# Ok got a command, but maybe it's invalid
else:
if not self.check_command.is_valid():
logger.info("%s: my check_command %s is invalid" % (self.get_name(), self.check_command.command))
state = False
if self.got_business_rule:
if not self.business_rule.is_valid():
logger.info("%s: my business rule is invalid" % (self.get_name(),))
for bperror in self.business_rule.configuration_errors:
logger.error("[host::%s] %s" % (self.get_name(), bperror))
state = False
if not hasattr(self, 'notification_interval') and self.notifications_enabled == True:
logger.info("%s: I've got no notification_interval but I've got notifications enabled" % self.get_name())
state = False
# If active check is enabled with a check_interval!=0, we must have a check_period
if (getattr(self, 'active_checks_enabled', False)
and getattr(self, 'check_period', None) is None
and getattr(self, 'check_interval', 1) != 0):
logger.info("%s: My check_period is not correct" % self.get_name())
state = False
if not hasattr(self, 'check_period'):
self.check_period = None
if hasattr(self, 'host_name'):
for c in cls.illegal_object_name_chars:
if c in self.host_name:
logger.info("%s: My host_name got the caracter %s that is not allowed." % (self.get_name(), c))
state = False
return state
# Search in my service if I've got the service
def find_service_by_name(self, service_description):
for s in self.services:
if getattr(s, 'service_description', '__UNNAMED_SERVICE__') == service_description:
return s
return None
# For get a nice name
def get_name(self):
if not self.is_tpl():
try:
return self.host_name
except AttributeError: # outch, no hostname
return 'UNNAMEDHOST'
else:
try:
return self.name
except AttributeError: # outch, no name for this template
return 'UNNAMEDHOSTTEMPLATE'
# For debugin purpose only
def get_dbg_name(self):
return self.host_name
# Same but for clean call, no debug
def get_full_name(self):
return self.host_name
# Get our realm
def get_realm(self):
return self.realm
def get_hostgroups(self):
return self.hostgroups
def get_host_tags(self):
return self.tags
# Say if we got the other in one of your dep list
def is_linked_with_host(self, other):
for (h, status, type, timeperiod, inherits_parent) in self.act_depend_of:
if h == other:
return True
return False
# Delete all links in the act_depend_of list of self and other
def del_host_act_dependency(self, other):
to_del = []
# First we remove in my list
for (h, status, type, timeperiod, inherits_parent) in self.act_depend_of:
if h == other:
to_del.append((h, status, type, timeperiod, inherits_parent))
for t in to_del:
self.act_depend_of.remove(t)
# And now in the father part
to_del = []
for (h, status, type, timeperiod, inherits_parent) in other.act_depend_of_me:
if h == self:
to_del.append((h, status, type, timeperiod, inherits_parent))
for t in to_del:
other.act_depend_of_me.remove(t)
# Remove in child/parents deps too
# Me in father list
other.child_dependencies.remove(self)
# and father list in mine
self.parent_dependencies.remove(other)
# Add a dependency for action event handler, notification, etc)
# and add ourself in it's dep list
def add_host_act_dependency(self, h, status, timeperiod, inherits_parent):
# I add him in MY list
self.act_depend_of.append((h, status, 'logic_dep', timeperiod, inherits_parent))
# And I add me in it's list
h.act_depend_of_me.append((self, status, 'logic_dep', timeperiod, inherits_parent))
# And the parent/child dep lists too
h.register_son_in_parent_child_dependencies(self)
# Register the dependency between 2 service for action (notification etc)
# but based on a BUSINESS rule, so on fact:
# ERP depend on database, so we fill just database.act_depend_of_me
# because we will want ERP mails to go on! So call this
# on the database service with the srv=ERP service
def add_business_rule_act_dependency(self, h, status, timeperiod, inherits_parent):
# first I add the other the I depend on in MY list
# I only register so he know that I WILL be a inpact
self.act_depend_of_me.append((h, status, 'business_dep',
timeperiod, inherits_parent))
# And the parent/child dep lists too
self.register_son_in_parent_child_dependencies(h)
# Add a dependency for check (so before launch)
def add_host_chk_dependency(self, h, status, timeperiod, inherits_parent):
# I add him in MY list
self.chk_depend_of.append((h, status, 'logic_dep', timeperiod, inherits_parent))
# And I add me in it's list
h.chk_depend_of_me.append((self, status, 'logic_dep', timeperiod, inherits_parent))
# And we fill parent/childs dep for brok purpose
# Here self depend on h
h.register_son_in_parent_child_dependencies(self)
# Add one of our service to services (at linkify)
def add_service_link(self, service):
self.services.append(service)
#####
# _
# (_)
# _ __ _ _ _ __ _ __ _ _ __ __ _
# | '__| | | | '_ \| '_ \| | '_ \ / _` |
# | | | |_| | | | | | | | | | | | (_| |
# |_| \__,_|_| |_|_| |_|_|_| |_|\__, |
# __/ |
# |___/
####
# Set unreachable: all our parents are down!
# We have a special state, but state was already set, we just need to
# update it. We are no DOWN, we are UNREACHABLE and
# got a state id is 2
def set_unreachable(self):
now = time.time()
self.state_id = 2
self.state = 'UNREACHABLE'
self.last_time_unreachable = int(now)
# We just go an impact, so we go unreachable
# But only if we enable this stte change in the conf
def set_impact_state(self):
cls = self.__class__
if cls.enable_problem_impacts_states_change:
# Keep a trace of the old state (problem came back before
# a new checks)
self.state_before_impact = self.state
self.state_id_before_impact = self.state_id
# This flag will know if we overide the impact state
self.state_changed_since_impact = False
self.state = 'UNREACHABLE' # exit code UNDETERMINED
self.state_id = 2
# Ok, we are no more an impact, if no news checks
# overide the impact state, we came back to old
# states
# And only if impact state change is set in configuration
def unset_impact_state(self):
cls = self.__class__
if cls.enable_problem_impacts_states_change and not self.state_changed_since_impact:
self.state = self.state_before_impact
self.state_id = self.state_id_before_impact
# set the state in UP, DOWN, or UNDETERMINED
# with the status of a check. Also update last_state
def set_state_from_exit_status(self, status):
now = time.time()
self.last_state_update = now
# we should put in last_state the good last state:
# if not just change the state by an problem/impact
# we can take current state. But if it's the case, the
# real old state is self.state_before_impact (it's the TRUE
# state in fact)
# And only if we enable the impact state change
cls = self.__class__
if cls.enable_problem_impacts_states_change and self.is_impact and not self.state_changed_since_impact:
self.last_state = self.state_before_impact
else:
self.last_state = self.state
if status == 0 or (status == 1 and cls.use_aggressive_host_checking == 0):
self.state = 'UP'
self.state_id = 0
self.last_time_up = int(self.last_state_update)
state_code = 'u'
elif status in (2, 3) or (status == 1 and cls.use_aggressive_host_checking == 1):
self.state = 'DOWN'
self.state_id = 1
self.last_time_down = int(self.last_state_update)
state_code = 'd'
else:
self.state = 'DOWN' # exit code UNDETERMINED
self.state_id = 1
self.last_time_down = int(self.last_state_update)
state_code = 'd'
if state_code in self.flap_detection_options:
self.add_flapping_change(self.state != self.last_state)
if self.state != self.last_state:
self.last_state_change = self.last_state_update
self.duration_sec = now - self.last_state_change
# See if status is status. Can be low of high format (o/UP, d/DOWN, ...)
def is_state(self, status):
if status == self.state:
return True
# Now low status
elif status == 'o' and self.state == 'UP':
return True
elif status == 'd' and self.state == 'DOWN':
return True
elif status == 'u' and self.state == 'UNREACHABLE':
return True
return False
# The last time when the state was not UP
def last_time_non_ok_or_up(self):
if self.last_time_down > self.last_time_up:
last_time_non_up = self.last_time_down
else:
last_time_non_up = 0
return last_time_non_up
# Add a log entry with a HOST ALERT like:
# HOST ALERT: server;DOWN;HARD;1;I don't know what to say...
def raise_alert_log_entry(self):
console_logger.info('HOST ALERT: %s;%s;%s;%d;%s'
% (self.get_name(),
self.state, self.state_type,
self.attempt, self.output))
# If the configuration allow it, raise an initial log like
# CURRENT HOST STATE: server;DOWN;HARD;1;I don't know what to say...
def raise_initial_state(self):
if self.__class__.log_initial_states:
console_logger.info('CURRENT HOST STATE: %s;%s;%s;%d;%s'
% (self.get_name(),
self.state, self.state_type,
self.attempt, self.output))
# Add a log entry with a Freshness alert like:
# Warning: The results of host 'Server' are stale by 0d 0h 0m 58s (threshold=0d 1h 0m 0s).
# I'm forcing an immediate check of the host.
def raise_freshness_log_entry(self, t_stale_by, t_threshold):
logger.warning("The results of host '%s' are stale by %s "
"(threshold=%s). I'm forcing an immediate check "
"of the host."
% (self.get_name(),
format_t_into_dhms_format(t_stale_by),
format_t_into_dhms_format(t_threshold)))
# Raise a log entry with a Notification alert like
# HOST NOTIFICATION: superadmin;server;UP;notify-by-rss;no output
def raise_notification_log_entry(self, n):
contact = n.contact
command = n.command_call
if n.type in ('DOWNTIMESTART', 'DOWNTIMEEND', 'CUSTOM',
'ACKNOWLEDGEMENT', 'FLAPPINGSTART', 'FLAPPINGSTOP',
'FLAPPINGDISABLED'):
state = '%s (%s)' % (n.type, self.state)
else:
state = self.state
if self.__class__.log_notifications:
console_logger.info("HOST NOTIFICATION: %s;%s;%s;%s;%s"
% (contact.get_name(), self.get_name(),
state, command.get_name(), self.output))
# Raise a log entry with a Eventhandler alert like
# HOST NOTIFICATION: superadmin;server;UP;notify-by-rss;no output
def raise_event_handler_log_entry(self, command):
if self.__class__.log_event_handlers:
console_logger.info("HOST EVENT HANDLER: %s;%s;%s;%s;%s"
% (self.get_name(),
self.state, self.state_type,
self.attempt, command.get_name()))
# Raise a log entry with FLAPPING START alert like
# HOST FLAPPING ALERT: server;STARTED; Host appears to have started flapping (50.6% change >= 50.0% threshold)
def raise_flapping_start_log_entry(self, change_ratio, threshold):
console_logger.info("HOST FLAPPING ALERT: %s;STARTED; "
"Host appears to have started flapping "
"(%.1f%% change >= %.1f%% threshold)"
% (self.get_name(), change_ratio, threshold))
# Raise a log entry with FLAPPING STOP alert like
# HOST FLAPPING ALERT: server;STOPPED; host appears to have stopped flapping (23.0% change < 25.0% threshold)
def raise_flapping_stop_log_entry(self, change_ratio, threshold):
console_logger.info("HOST FLAPPING ALERT: %s;STOPPED; "
"Host appears to have stopped flapping "
"(%.1f%% change < %.1f%% threshold)"
% (self.get_name(), change_ratio, threshold))
# If there is no valid time for next check, raise a log entry
def raise_no_next_check_log_entry(self):
logger.warning("I cannot schedule the check for the host '%s' "
"because there is not future valid time"
% (self.get_name()))
# Raise a log entry when a downtime begins
# HOST DOWNTIME ALERT: test_host_0;STARTED; Host has entered a period of scheduled downtime
def raise_enter_downtime_log_entry(self):
console_logger.info("HOST DOWNTIME ALERT: %s;STARTED; "
"Host has entered a period of scheduled downtime"
% (self.get_name()))
# Raise a log entry when a downtime has finished
# HOST DOWNTIME ALERT: test_host_0;STOPPED; Host has exited from a period of scheduled downtime
def raise_exit_downtime_log_entry(self):
console_logger.info("HOST DOWNTIME ALERT: %s;STOPPED; Host has "
"exited from a period of scheduled downtime"
% (self.get_name()))
# Raise a log entry when a downtime prematurely ends
# HOST DOWNTIME ALERT: test_host_0;CANCELLED; Service has entered a period of scheduled downtime
def raise_cancel_downtime_log_entry(self):
console_logger.info("HOST DOWNTIME ALERT: %s;CANCELLED; "
"Scheduled downtime for host has been cancelled."
% (self.get_name()))
# Is stalking?
# Launch if check is waitconsume==first time
# and if c.status is in self.stalking_options
def manage_stalking(self, c):
need_stalk = False
if c.status == 'waitconsume':
if c.exit_status == 0 and 'o' in self.stalking_options:
need_stalk = True
elif c.exit_status == 1 and 'd' in self.stalking_options:
need_stalk = True
elif c.exit_status == 2 and 'd' in self.stalking_options:
need_stalk = True
elif c.exit_status == 3 and 'u' in self.stalking_options:
need_stalk = True
if c.output != self.output:
need_stalk = False
if need_stalk:
logger.info("Stalking %s: %s" % (self.get_name(), self.output))
# fill act_depend_of with my parents (so network dep)
# and say parents they impact me, no timeperiod and follow parents of course
def fill_parents_dependency(self):
for parent in self.parents:
if parent is not None:
# I add my parent in my list
self.act_depend_of.append((parent, ['d', 'u', 's', 'f'], 'network_dep', None, True))
# And I register myself in my parent list too
parent.register_child(self)
# And add the parent/child dep filling too, for broking
parent.register_son_in_parent_child_dependencies(self)
# Register a child in our lists
def register_child(self, child):
# We've got 2 list: a list for our child
# where we just put the pointer, it's just for broking
# and another with all data, useful for 'running' part
self.childs.append(child)
self.act_depend_of_me.append((child, ['d', 'u', 's', 'f'], 'network_dep', None, True))
# Give data for checks's macros
def get_data_for_checks(self):
return [self]
# Give data for event handler's macro
def get_data_for_event_handler(self):
return [self]
# Give data for notifications'n macros
def get_data_for_notifications(self, contact, n):
return [self, contact, n]
# See if the notification is launchable (time is OK and contact is OK too)
def notification_is_blocked_by_contact(self, n, contact):
return not contact.want_host_notification(self.last_chk, self.state, n.type, self.business_impact, n.command_call)
# MACRO PART
def get_duration_sec(self):
return str(int(self.duration_sec))
def get_duration(self):
m, s = divmod(self.duration_sec, 60)
h, m = divmod(m, 60)
return "%02dh %02dm %02ds" % (h, m, s)
# Check if a notification for this host is suppressed at this time
# This is a check at the host level. Do not look at contacts here
def notification_is_blocked_by_item(self, type, t_wished=None):
if t_wished is None:
t_wished = time.time()
# TODO
# forced notification -> false
# custom notification -> false
# Block if notifications are program-wide disabled
if not self.enable_notifications:
return True
# Does the notification period allow sending out this notification?
if self.notification_period is not None and not self.notification_period.is_time_valid(t_wished):
return True
# Block if notifications are disabled for this host
if not self.notifications_enabled:
return True
# Block if the current status is in the notification_options d,u,r,f,s
if 'n' in self.notification_options:
return True
if type in ('PROBLEM', 'RECOVERY'):
if self.state == 'DOWN' and not 'd' in self.notification_options:
return True
if self.state == 'UP' and not 'r' in self.notification_options:
return True
if self.state == 'UNREACHABLE' and not 'u' in self.notification_options:
return True
if (type in ('FLAPPINGSTART', 'FLAPPINGSTOP', 'FLAPPINGDISABLED')
and not 'f' in self.notification_options):
return True
if (type in ('DOWNTIMESTART', 'DOWNTIMEEND', 'DOWNTIMECANCELLED')
and not 's' in self.notification_options):
return True
# Acknowledgements make no sense when the status is ok/up
if type == 'ACKNOWLEDGEMENT':
if self.state == self.ok_up:
return True
# Flapping
if type in ('FLAPPINGSTART', 'FLAPPINGSTOP', 'FLAPPINGDISABLED'):
# todo block if not notify_on_flapping
if self.scheduled_downtime_depth > 0:
return True
# When in deep downtime, only allow end-of-downtime notifications
# In depth 1 the downtime just started and can be notified
if self.scheduled_downtime_depth > 1 and not type in ('DOWNTIMEEND', 'DOWNTIMECANCELLED'):
return True
# Block if in a scheduled downtime and a problem arises
if self.scheduled_downtime_depth > 0 and type in ('PROBLEM', 'RECOVERY'):
return True
# Block if the status is SOFT
if self.state_type == 'SOFT' and type == 'PROBLEM':
return True
# Block if the problem has already been acknowledged
if self.problem_has_been_acknowledged and type != 'ACKNOWLEDGEMENT':
return True
# Block if flapping
if self.is_flapping and type not in ('FLAPPINGSTART', 'FLAPPINGSTOP', 'FLAPPINGDISABLED'):
return True
return False
# Get a oc*p command if item has obsess_over_*
# command. It must be enabled locally and globally
def get_obsessive_compulsive_processor_command(self):
cls = self.__class__
if not cls.obsess_over or not self.obsess_over_host:
return
m = MacroResolver()
data = self.get_data_for_event_handler()
cmd = m.resolve_command(cls.ochp_command, data)
e = EventHandler(cmd, timeout=cls.ochp_timeout)
# ok we can put it in our temp action queue
self.actions.append(e)
# Macro part
def get_total_services(self):
return str(len(self.services))
def get_total_services_ok(self):
return str(len([s for s in self.services if s.state_id == 0]))
def get_total_services_warning(self):
return str(len([s for s in self.services if s.state_id == 1]))
def get_total_services_critical(self):
return str(len([s for s in self.services if s.state_id == 2]))
def get_total_services_unknown(self):
return str(len([s for s in self.services if s.state_id == 3]))
def get_ack_author_name(self):
if self.acknowledgement is None:
return ''
return self.acknowledgement.author
def get_ack_comment(self):
if self.acknowledgement is None:
return ''
return self.acknowledgement.comment
def get_check_command(self):
return self.check_command.get_name()
# CLass for the hosts lists. It's mainly for configuration
# part
class Hosts(Items):
name_property = "host_name" # use for the search by name
inner_class = Host # use for know what is in items
# Create link between elements:
# hosts -> timeperiods
# hosts -> hosts (parents, etc)
# hosts -> commands (check_command)
# hosts -> contacts
def linkify(self, timeperiods=None, commands=None, contacts=None, realms=None, resultmodulations=None, businessimpactmodulations=None, escalations=None, hostgroups=None, triggers=None):
self.linkify_with_timeperiods(timeperiods, 'notification_period')
self.linkify_with_timeperiods(timeperiods, 'check_period')
self.linkify_with_timeperiods(timeperiods, 'maintenance_period')
self.linkify_h_by_h()
self.linkify_h_by_hg(hostgroups)
self.linkify_one_command_with_commands(commands, 'check_command')
self.linkify_one_command_with_commands(commands, 'event_handler')
self.linkify_with_contacts(contacts)
self.linkify_h_by_realms(realms)
self.linkify_with_resultmodulations(resultmodulations)
self.linkify_with_business_impact_modulations(businessimpactmodulations)
# WARNING: all escalations will not be link here
# (just the escalation here, not serviceesca or hostesca).
# This last one will be link in escalations linkify.
self.linkify_with_escalations(escalations)
self.linkify_with_triggers(triggers)
# Fill adress by host_name if not set
def fill_predictive_missing_parameters(self):
for h in self:
h.fill_predictive_missing_parameters()
# Link host with hosts (parents)
def linkify_h_by_h(self):
for h in self:
parents = h.parents
# The new member list
new_parents = []
for parent in parents:
parent = parent.strip()
p = self.find_by_name(parent)
if p is not None:
new_parents.append(p)
else:
err = "the parent '%s' on host '%s' is unknown!" % (parent, h.get_name())
self.configuration_errors.append(err)
#print "Me,", h.host_name, "define my parents", new_parents
# We find the id, we remplace the names
h.parents = new_parents
# Link with realms and set a default realm if none
def linkify_h_by_realms(self, realms):