NDOUtilsのインストール
NDOUtilsではNagiosのデータをデータベースに格納して管理することができます。
詳細は公式サイトを参照してください。
http://exchange.nagios.org/directory/Addons/Database-Backends/NDOUtils/details
下記はサイトからの引用です。
NDOUtils allows you to export current and historical data from one or more Nagios instances to a MySQL database. Several community addons use this as one of their data sources. NDOUtils consists of a standalone daemon, a Nagios event broker, and several helper utilities.
コンパイル、インストール
$ curl http://jaist.dl.sourceforge.net/project/nagios/ndoutils-1.x/ndoutils-1.4b9/ndoutils-1.4b9.tar.gz | tar zxv
$ cd ndoutils-1.4b9
$ ./configure
*** Configuration summary for ndoutils 1.4b9 10-27-2009 ***:
General Options:
-------------------------
NDO2DB user: nagios
NDO2DB group: nagios
Review the options above for accuracy. If they look okay,
type 'make' to compile the NDO utilities.
$ make
$ sudo make install
Hint: NDOUtils Installation against Nagios v3.x
completed.
If you want to install NDOUtils for Nagios v2.x
please type 'make install-2x
Next step should be the database initialization/upgrade
cd into the db/ directory and either:
./installdb (for a new installation) or:
./upgradedb (for an existing one)
make[1]: ディレクトリ `/usr/local/src/ndoutils-1.4b9/src' から出ます
Main NDOUtils components installed
データベース作成
次にNDOUtilsで利用するデータベース、ユーザ、パスワードを設定します。(いずれもndoutilsとしました)
READMEには下記の記述があるため権限は制限しました。
2. Create a username/password that has at least the following privileges for the database:
SELECT, INSERT, UPDATE, DELETE
mysql> CREATE DATABASE ndoutils;
Query OK, 1 row affected (0.00 sec)
mysql> GRANT SELECT,INSERT,UPDATE,DELETE
-> ON ndoutils.*
-> TO ndoutils@localhost
-> IDENTIFIED BY 'ndoutils';
Query OK, 0 rows affected (0.01 sec)
次にテーブルを作成します。
failedと出ていますが気にしないでおきます :-)
$ cd db
$ ./installdb -u root -p "" -h localhost -d ndoutils
DBD::mysql::db do failed: Table 'ndoutils.nagios_dbversion' doesn't exist at ./installdb line 51.
** Creating tables for version 1.4b9
Using mysql.sql for installation...
** Updating table nagios_dbversi
モジュール、コンフィグファイルのコピー
broker moduleのコピー。
$ sudo cp src/ndomod-3x.o /usr/local/nagios/bin/ndomod.o $ sudo cp config/ndomod.cfg-sample /usr/local/nagios/etc/ndomod.cfg $ sudo chown nagios:nagios /usr/local/nagios/etc/ndomod.cfg
nagiosがbroker moduleを読み込むように設定。
$ sudi vi /usr/local/nagios/etc/ndomod.cfg broker_module=/usr/local/nagios/bin/ndomod.o config_file=/usr/local/nagios/etc/ndomod.cfg
ndo2dbのコピー。
$ sudo cp src/ndo2db-3x /usr/local/nagios/bin/ndo2db $ sudo cp config/ndo2db.cfg-sample /usr/local/nagios/etc/ndo2db.cfg $ sudo chown nagios:nagios /usr/local/nagios/etc/ndo2db.cfg
ndo2dbの設定を先ほど作成したデータベース情報に変更。
$ sudo vi /usr/local/nagios/etc/ndo2db.cfg db_name=ndoutils db_user=ndoutils db_pass=ndoutils
ndo2dbデーモンの起動設定。
$ sudo cp daemon-init /etc/init.d/ndoutils $ sudo chmod 755 /etc/init.d/ndoutils $ sudo chkconfig ndoutils on
最後にndo2db,nagiosを起動して終わりです。
$ sudo service ndoutils start $ sudo service nagios restart
動作確認
正常に動作していればnagiosのログ(/usr/local/nagios/var/nagios.log)に
こんな感じで表示されているはずです。
[1326691682] Nagios 3.3.1 starting... (PID=14465) [1326691682] Local time is Mon Jan 16 14:28:02 JST 2012 [1326691682] LOG VERSION: 2.0 [1326691682] ndomod: NDOMOD 1.4b9 (10-27-2009) Copyright (c) 2009 Nagios Core Development Team and Community Contributors [1326691682] ndomod: Successfully connected to data sink. 0 queued items to flush. [1326691682] Event broker module '/usr/local/nagios/bin/ndomod.o' initialized successfully. [1326691682] Finished daemonizing... (New PID=14469)
また、MySQLにもデータが格納されます。
mysql> SELECT * FROM ndoutils.nagios_hosts\G
*************************** 1. row ***************************
host_id: 2
instance_id: 1
config_type: 1
host_object_id: 1
alias: oreore.dtdns.net
display_name: oreore.dtdns.net
address: 127.0.0.1
check_command_object_id: 13
check_command_args:
eventhandler_command_object_id: 0
eventhandler_command_args:
notification_timeperiod_object_id: 43
check_timeperiod_object_id: 2
failure_prediction_options:
check_interval: 1
retry_interval: 1
max_check_attempts: 10
first_notification_delay: 0
notification_interval: 120
notify_on_down: 1
notify_on_unreachable: 1
notify_on_recovery: 1
notify_on_flapping: 0
notify_on_downtime: 0
stalk_on_up: 0
stalk_on_down: 0
stalk_on_unreachable: 0
flap_detection_enabled: 1
flap_detection_on_up: 1
flap_detection_on_down: 1
flap_detection_on_unreachable: 1
low_flap_threshold: 0
high_flap_threshold: 0
process_performance_data: 1
freshness_checks_enabled: 0
freshness_threshold: 0
passive_checks_enabled: 1
event_handler_enabled: 1
active_checks_enabled: 1
retain_status_information: 1
retain_nonstatus_information: 1
notifications_enabled: 1
obsess_over_host: 1
failure_prediction_enabled: 1
notes:
notes_url:
action_url:
icon_image:
icon_image_alt:
vrml_image:
statusmap_image:
have_2d_coords: 0
x_2d: -1
y_2d: 0
have_3d_coords: 0
x_3d: 0
y_3d: 0
z_3d: 0
1 row in set (0.00 sec)
