def _handle_service(self, service): # type: (Service) -> CheckTable check_table = {} # type: CheckTable hostname = self._host_config.hostname if not self._is_checkname_valid(service.check_plugin_name): return {} if self.skip_ignored and config.service_ignored( hostname, service.check_plugin_name, service.description): return {} if not self._host_config.part_of_clusters: svc_is_mine = True else: svc_is_mine = hostname == self._config_cache.host_of_clustered_service( hostname, service.description, part_of_clusters=self._host_config.part_of_clusters) if self.filter_mode is None and not svc_is_mine: return {} elif self.filter_mode == "only_clustered" and svc_is_mine: return {} check_table[(service.check_plugin_name, service.item)] = service return check_table
def do_omit_service(hostname, description): if config.service_ignored(hostname, None, description): return True if hostname != config_cache.host_of_clustered_service( hostname, description): return True return False
def _handle_entry(self, checkname, item, params): # type: (str, Text, Any) -> CheckTable check_table = {} # type: CheckTable hostname = self._host_config.hostname if not self._is_checkname_valid(checkname): return {} descr = config.service_description(hostname, checkname, item) if self.skip_ignored and config.service_ignored( hostname, checkname, descr): return {} if not self._host_config.part_of_clusters: svc_is_mine = True else: svc_is_mine = hostname == self._config_cache.host_of_clustered_service( hostname, descr, part_of_clusters=self._host_config.part_of_clusters) if self.filter_mode is None and not svc_is_mine: return {} elif self.filter_mode == "only_clustered" and svc_is_mine: return {} deps = config.service_depends_on(hostname, descr) check_table[(checkname, item)] = (params, descr, deps) return check_table
def handle_entry(entry): num_elements = len(entry) if num_elements == 3: # from autochecks hostlist = hostname checkname, item, params = entry tags = [] elif num_elements == 4: hostlist, checkname, item, params = entry tags = [] elif num_elements == 5: tags, hostlist, checkname, item, params = entry if not isinstance(tags, list): raise MKGeneralException( "Invalid entry '%r' in check table. First entry must be list of host tags." % (entry,)) else: raise MKGeneralException( "Invalid entry '%r' in check table. It has %d entries, but must have 4 or 5." % (entry, len(entry))) # hostlist list might be: # 1. a plain hostname (string) # 2. a list of hostnames (list of strings) # Hostnames may be tagged. Tags are removed. # In autochecks there are always single untagged hostnames. We optimize for that. if isinstance(hostlist, str): if hostlist != hostname: return # optimize most common case: hostname mismatch hostlist = [hostlist] elif isinstance(hostlist[0], str): pass # regular case: list of hostnames elif hostlist != []: raise MKGeneralException("Invalid entry '%r' in check table. Must be single hostname " "or list of hostnames" % hostlist) if not is_checkname_valid(checkname): return if config.hosttags_match_taglist(hosttags, tags) and \ config.in_extraconf_hostlist(hostlist, hostname): descr = config.service_description(hostname, checkname, item) if skip_ignored and config.service_ignored(hostname, checkname, descr): return if not host_config.part_of_clusters: svc_is_mine = True else: svc_is_mine = hostname == config_cache.host_of_clustered_service( hostname, descr, part_of_clusters=host_config.part_of_clusters) if filter_mode is None and not svc_is_mine: return elif filter_mode == "only_clustered" and svc_is_mine: return deps = config.service_depends_on(hostname, descr) check_table[(checkname, item)] = (params, descr, deps)
def _create_nagios_servicedefs(cfg, config_cache, hostname, host_attrs): outfile = cfg.outfile import cmk_base.check_table as check_table host_config = config_cache.get_host_config(hostname) check_mk_attrs = core_config.get_service_attributes( hostname, "Check_MK", config_cache) # _____ # |___ / # |_ \ # ___) | # |____/ 3. Services def do_omit_service(hostname, description): if config.service_ignored(hostname, None, description): return True if hostname != config_cache.host_of_clustered_service( hostname, description): return True return False def get_dependencies(hostname, servicedesc): result = "" for dep in config.service_depends_on(hostname, servicedesc): result += _format_nagios_object( "servicedependency", { "use": config.service_dependency_template, "host_name": hostname, "service_description": dep, "dependent_host_name": hostname, "dependent_service_description": servicedesc, }) return result services = check_table.get_check_table(hostname, remove_duplicates=True).values() have_at_least_one_service = False used_descriptions = {} for service in sorted(services, key=lambda s: (s.check_plugin_name, s.item)): if service.check_plugin_name not in config.check_info: continue # simply ignore missing checks # Make sure, the service description is unique on this host if service.description in used_descriptions: cn, it = used_descriptions[service.description] core_config.warning( "ERROR: Duplicate service description '%s' for host '%s'!\n" " - 1st occurrance: checktype = %s, item = %r\n" " - 2nd occurrance: checktype = %s, item = %r\n" % (service.description, hostname, cn, it, service.check_plugin_name, service.item)) continue else: used_descriptions[service.description] = ( service.check_plugin_name, service.item) if config.check_info[service.check_plugin_name].get( "has_perfdata", False): template = config.passive_service_template_perf else: template = config.passive_service_template # Services Dependencies for autochecks outfile.write( get_dependencies(hostname, service.description).encode("utf-8")) service_spec = { "use": template, "host_name": hostname, "service_description": service.description, "check_command": "check_mk-%s" % service.check_plugin_name, } service_spec.update( core_config.get_cmk_passive_service_attributes( config_cache, host_config, service, check_mk_attrs)) service_spec.update( _extra_service_conf_of(cfg, config_cache, hostname, service.description)) outfile.write( _format_nagios_object("service", service_spec).encode("utf-8")) cfg.checknames_to_define.add(service.check_plugin_name) have_at_least_one_service = True # Active check for check_mk if have_at_least_one_service: service_spec = { "use": config.active_service_template, "host_name": hostname, "service_description": "Check_MK", } service_spec.update(check_mk_attrs) service_spec.update( _extra_service_conf_of(cfg, config_cache, hostname, "Check_MK")) outfile.write( _format_nagios_object("service", service_spec).encode("utf-8")) # legacy checks via active_checks actchecks = [] for plugin_name, entries in host_config.active_checks: cfg.active_checks_to_define.add(plugin_name) act_info = config.active_check_info[plugin_name] for params in entries: actchecks.append((plugin_name, act_info, params)) if actchecks: outfile.write("\n\n# Active checks\n") for acttype, act_info, params in actchecks: # Make hostname available as global variable in argument functions check_api_utils.set_hostname(hostname) has_perfdata = act_info.get('has_perfdata', False) description = config.active_check_service_description( hostname, acttype, params) if do_omit_service(hostname, description): continue # compute argument, and quote ! and \ for Nagios args = core_config.active_check_arguments( hostname, description, act_info["argument_function"](params)).replace( "\\", "\\\\").replace("!", "\\!") if description in used_descriptions: cn, it = used_descriptions[description] # If we have the same active check again with the same description, # then we do not regard this as an error, but simply ignore the # second one. That way one can override a check with other settings. if cn == "active(%s)" % acttype: continue core_config.warning( "ERROR: Duplicate service description (active check) '%s' for host '%s'!\n" " - 1st occurrance: checktype = %s, item = %r\n" " - 2nd occurrance: checktype = active(%s), item = None\n" % (description, hostname, cn, it, acttype)) continue else: used_descriptions[description] = ("active(" + acttype + ")", description) template = "check_mk_perf," if has_perfdata else "" if host_attrs["address"] in ["0.0.0.0", "::"]: command_name = "check-mk-custom" command = command_name + "!echo \"CRIT - Failed to lookup IP address and no explicit IP address configured\" && exit 2" cfg.custom_commands_to_define.add(command_name) else: command = "check_mk_active-%s!%s" % (acttype, args) service_spec = { "use": "%scheck_mk_default" % template, "host_name": hostname, "service_description": description, "check_command": _simulate_command(cfg, command), "active_checks_enabled": 1, } service_spec.update( core_config.get_service_attributes(hostname, description, config_cache)) service_spec.update( _extra_service_conf_of(cfg, config_cache, hostname, description)) outfile.write( _format_nagios_object("service", service_spec).encode("utf-8")) # write service dependencies for active checks outfile.write( get_dependencies(hostname, description).encode("utf-8")) # Legacy checks via custom_checks custchecks = host_config.custom_checks if custchecks: outfile.write("\n\n# Custom checks\n") for entry in custchecks: # entries are dicts with the following keys: # "service_description" Service description to use # "command_line" (optional) Unix command line for executing the check # If this is missing, we create a passive check # "command_name" (optional) Name of Monitoring command to define. If missing, # we use "check-mk-custom" # "has_perfdata" (optional) If present and True, we activate perf_data description = config.get_final_service_description( hostname, entry["service_description"]) has_perfdata = entry.get("has_perfdata", False) command_name = entry.get("command_name", "check-mk-custom") command_line = entry.get("command_line", "") if do_omit_service(hostname, description): continue if command_line: command_line = core_config.autodetect_plugin( command_line).replace("\\", "\\\\").replace("!", "\\!") if "freshness" in entry: freshness = { "check_freshness": 1, "freshness_threshold": 60 * entry["freshness"]["interval"], } command_line = "echo %s && exit %d" % (_quote_nagios_string( entry["freshness"]["output"]), entry["freshness"]["state"]) else: freshness = {} cfg.custom_commands_to_define.add(command_name) if description in used_descriptions: cn, it = used_descriptions[description] # If we have the same active check again with the same description, # then we do not regard this as an error, but simply ignore the # second one. if cn == "custom(%s)" % command_name: continue core_config.warning( "ERROR: Duplicate service description (custom check) '%s' for host '%s'!\n" " - 1st occurrance: checktype = %s, item = %r\n" " - 2nd occurrance: checktype = custom(%s), item = %r\n" % (description, hostname, cn, it, command_name, description)) continue else: used_descriptions[description] = ("custom(%s)" % command_name, description) template = "check_mk_perf," if has_perfdata else "" command = "%s!%s" % (command_name, command_line) service_spec = { "use": "%scheck_mk_default" % template, "host_name": hostname, "service_description": description, "check_command": _simulate_command(cfg, command), "active_checks_enabled": 1 if (command_line and not freshness) else 0, } service_spec.update(freshness) service_spec.update( core_config.get_service_attributes(hostname, description, config_cache)) service_spec.update( _extra_service_conf_of(cfg, config_cache, hostname, description)) outfile.write( _format_nagios_object("service", service_spec).encode("utf-8")) # write service dependencies for custom checks outfile.write( get_dependencies(hostname, description).encode("utf-8")) # FIXME: Remove old name one day service_discovery_name = 'Check_MK inventory' if 'cmk-inventory' in config.use_new_descriptions_for: service_discovery_name = 'Check_MK Discovery' # Inventory checks - if user has configured them. params = host_config.discovery_check_parameters if params and params["check_interval"] \ and not config.service_ignored(hostname, None, service_discovery_name) \ and not host_config.is_ping_host: service_spec = { "use": config.inventory_check_template, "host_name": hostname, "service_description": service_discovery_name, } service_spec.update( core_config.get_service_attributes(hostname, service_discovery_name, config_cache)) service_spec.update( _extra_service_conf_of(cfg, config_cache, hostname, service_discovery_name)) service_spec.update({ "check_interval": params["check_interval"], "retry_interval": params["check_interval"], }) outfile.write( _format_nagios_object("service", service_spec).encode("utf-8")) if have_at_least_one_service: outfile.write( _format_nagios_object( "servicedependency", { "use": config.service_dependency_template, "host_name": hostname, "service_description": "Check_MK", "dependent_host_name": hostname, "dependent_service_description": service_discovery_name, }).encode("utf-8")) # No check_mk service, no legacy service -> create PING service if not have_at_least_one_service and not actchecks and not custchecks: _add_ping_service(cfg, config_cache, host_config, host_attrs["address"], host_config.is_ipv6_primary and 6 or 4, "PING", host_attrs.get("_NODEIPS")) if host_config.is_ipv4v6_host: if host_config.is_ipv6_primary: _add_ping_service(cfg, config_cache, host_config, host_attrs["_ADDRESS_4"], 4, "PING IPv4", host_attrs.get("_NODEIPS_4")) else: _add_ping_service(cfg, config_cache, host_config, host_attrs["_ADDRESS_6"], 6, "PING IPv6", host_attrs.get("_NODEIPS_6"))
def _snmp_scan(host_config, on_error="ignore", for_inv=False, do_snmp_scan=True, for_mgmt_board=False): import cmk_base.inventory_plugins as inventory_plugins # Make hostname globally available for scan functions. # This is rarely used, but e.g. the scan for if/if64 needs # this to evaluate if_disabled_if64_checks. check_api_utils.set_hostname(host_config.hostname) snmp.initialize_single_oid_cache(host_config) console.vverbose(" SNMP scan:\n") if not config.get_config_cache().in_binary_hostlist( host_config.hostname, config.snmp_without_sys_descr): for oid, name in [(".1.3.6.1.2.1.1.1.0", "system description"), (".1.3.6.1.2.1.1.2.0", "system object")]: value = snmp.get_single_oid(host_config, oid, do_snmp_scan=do_snmp_scan) if value is None: raise MKSNMPError( "Cannot fetch %s OID %s. This might be OK for some bogus devices. " "In that case please configure the ruleset \"Hosts without system " "description OID\" to tell Check_MK not to fetch the system " "description and system object OIDs." % (name, oid)) else: # Fake OID values to prevent issues with a lot of scan functions console.vverbose( " Skipping system description OID " "(Set .1.3.6.1.2.1.1.1.0 and .1.3.6.1.2.1.1.2.0 to \"\")\n") snmp.set_single_oid_cache(host_config, ".1.3.6.1.2.1.1.1.0", "") snmp.set_single_oid_cache(host_config, ".1.3.6.1.2.1.1.2.0", "") found_check_plugin_names = [] if for_inv: items = inventory_plugins.inv_info.items() else: items = config.check_info.items() positive_found = [] default_found = [] for check_plugin_name, _unused_check in items: if config.service_ignored(host_config.hostname, check_plugin_name, None): continue else: if for_inv and not inventory_plugins.is_snmp_plugin( check_plugin_name): continue elif not for_inv and not cmk_base.check_utils.is_snmp_check( check_plugin_name): continue section_name = cmk_base.check_utils.section_name_of(check_plugin_name) # The scan function should be assigned to the section_name, because # subchecks sharing the same SNMP info of course should have # an identical scan function. But some checks do not do this # correctly if check_plugin_name in config.snmp_scan_functions: scan_function = config.snmp_scan_functions[check_plugin_name] elif section_name in config.snmp_scan_functions: scan_function = config.snmp_scan_functions[section_name] elif section_name in inventory_plugins.inv_info: scan_function = inventory_plugins.inv_info[section_name].get( "snmp_scan_function") else: scan_function = None if scan_function: try: def oid_function(oid, default_value=None, cp_name=check_plugin_name): value = snmp.get_single_oid(host_config, oid, cp_name, do_snmp_scan=do_snmp_scan) return default_value if value is None else value result = scan_function(oid_function) if result is not None and not isinstance(result, (str, bool)): if on_error == "warn": console.warning( " SNMP scan function of %s returns invalid type %s." % (check_plugin_name, type(result))) elif on_error == "raise": raise MKGeneralException("SNMP Scan aborted.") elif result: found_check_plugin_names.append(check_plugin_name) positive_found.append(check_plugin_name) except MKGeneralException: # some error messages which we explicitly want to show to the user # should be raised through this raise except Exception: if on_error == "warn": console.warning( " Exception in SNMP scan function of %s" % check_plugin_name) elif on_error == "raise": raise else: found_check_plugin_names.append(check_plugin_name) default_found.append(check_plugin_name) _output_snmp_check_plugins("SNMP scan found", positive_found) if default_found: _output_snmp_check_plugins("SNMP without scan function", default_found) filtered = config.filter_by_management_board(host_config.hostname, found_check_plugin_names, for_mgmt_board, for_discovery=True, for_inventory=for_inv) _output_snmp_check_plugins("SNMP filtered check plugin names", filtered) snmp.write_single_oid_cache(host_config) return sorted(filtered)