centreon+nagios安裝-批量添加主機和服務

原文鏈接：

本文引用了一位同事的文檔及網絡文章，在此感謝~ 實驗的部分自己完成

一、centreon批量添加主機

本部分參考了同事的文檔和鏈接：http://blog.chinaunix.net/uid-17196076-id-2817703.html

centreon的模板功能是做的非常強大的，而且優化過的nagios配置十分簡單，加host的時候只需要輸入了hostname，alias和ip 地址就可以加一臺host上去，service配在hostgroup上，這樣只要把host添加到hostgroup上就可以了。

   如果你要加一兩臺機器，那是很方便的，但是如果上百臺呢，上千臺呢？那手豈不是要點的抽筋了？

   這點來看，還是用腳本批量添加來的方便，呵呵，共享一個自己寫的批量添加host的腳本，只添加host，service和hostgroup自己配。

   運行腳本之前，要先準備好幾件事情：
   1、要有一個host的模板，將所有的屬性基本上定義完整，使用腳本添加的host會和模板一模一樣，只有ip地址和hostname有差別
   2、要確認了host要添加到哪臺nagios上，在centreon裏叫poller
   3、要有一個hosts文件，裏面內容爲要批量添加的hostname和ip地址，類似/etc/hosts的格式，第一欄ip，第二欄hostname

   腳本用perl寫的，最前面db的部分需要修改，代碼如下：
#!/usr/bin/perl
## ====================================================
#
# File name: insert_host.pl
# Use: insert host into centreon database
# Creater: lianming
# Date: 2009-04-24
# Last_change: 2009-04-24
#
## ====================================================
use strict;
use warnings;
use DBI;
use DBD::mysql;

# ----------------------------------------------------
my $DB_HOST = "db_ipaddress";            #修改爲127.0.0.1
my $DB_USER = "db_user";             # web安裝時設置的數據庫訪問用戶，修改爲centreon
my $DB_PASSWD = "db_password";     # web安裝時設置的數據庫密碼，修改爲centreon
my $DB_NAME = "centreon";                   # web安裝時設置的數據庫名，默認也是centreon
my $dbh = DBI->connect("DBI:mysql:database=$DB_NAME;host=$DB_HOST",
                       "$DB_USER", "$DB_PASSWD", { RaiseError => 1 });

# ----------------------------------------------------
my $file_path = "./hosts";       #hosts文件，自己創建
my $tpl_name = "generic-host";     #主機模板，填寫你需要繼承的模板；
my $nagios_name = "nagios_name";     #poller，修改爲Central

foreach my $arg (@ARGV) {
    # == file of hostname and ipaddress ==
    if ($arg eq '-f') {
        $file_path = shift;
        }

    # == name of template ==
    elsif ($arg eq '-t') {
        $tpl_name = shift;
        }

    # == name of nagios name ==
    elsif ($arg eq '-n') {
        $nagios_name = shift;
        }

    else {
        &print_help();
        exit 1;
        }
    }

# -----------------------------------------------------
open (HOST, "$file_path") || die "Cannot open $file_path for read";

my $sql;
my $sth;
my $line;
my ($host, $ipaddr);
my ($host_id, $tpl_id, $nagios_id) = (0, 0, 0);

while (defined($line = <HOST>)) {

    # == skip blank lines =================
    next if ($line =~ /^\s*$/);

    # == skip if # ========================
    next if ($line =~ /^\s*#/);

    # == get host and ipaddress ===========
    ($ipaddr, $host) = split(/\s+/, $line);
    next if ($ipaddr eq '' || $host eq '');

    # == insert the host to table host ====
    $sql = "insert host set
host_template_model_htm_id='2',host_name='$host',host_alias='$host',host_address='$ipaddr',host_active_checks_enabled='2',host_passive_checks_enabled=
'2',host_checks_enabled='2',host_event_handler_enabled='2',host_flap_detection_enabled='2',host_process_perf_data='2',host_retain_status_information=
'2',host_retain_nonstatus_information='2',host_notifications_enabled='2',host_register='1',host_activate='1'";

    $sth = $dbh->do($sql);
    sleep(1);

    # == get host_id ======================
    $sql = "select host_id from host where host_name='$host'";
    $sth = $dbh->prepare($sql);
        $sth->execute();

    while (my $ref = $sth->fetchrow_hashref()) {
               $host_id = $ref->{'host_id'};
            print "host_id is $host_id\n";
                        }
        next if ($host_id == 0);

    # == insert extended_host_information ==
    $sql = "insert extended_host_information set host_host_id='$host_id'";
    $sth = $dbh->do($sql);

    # == insert host_template_relation =====
    $sql = "select host_id from host where host_name='$tpl_name'";
    $sth = $dbh->prepare($sql);
        $sth->execute();

    while (my $ref = $sth->fetchrow_hashref()) {
                        $tpl_id = $ref->{'host_id'};
            print "template id is $tpl_id\n";
                        }
        next if ($tpl_id == 0);

    $sql = "insert host_template_relation set host_host_id='$host_id',host_tpl_id='$tpl_id',`order`='1'";
    $sth = $dbh->prepare($sql);
        $sth->execute();

    # == insert ns_host_relation ===========
    $sql = "select id from nagios_server where name='$nagios_name'";

        $sth = $dbh->prepare($sql);
        $sth->execute();

        while (my $ref = $sth->fetchrow_hashref()) {
                        $nagios_id = $ref->{'id'};
            print "nagios id is $nagios_id\n";
                        }
        next if ($nagios_id == 0);

        $sql = "insert ns_host_relation set host_host_id='$host_id',nagios_server_id='$nagios_id'";
        $sth = $dbh->prepare($sql);
        $sth->execute();

    # == insert complete ==
    print "insert $host to centreon complete\n";
    }

close(HOST);
$dbh->disconnect();
exit 0;

# --------------------------------------------------------------------------------
sub print_help {
    print "Usage ./insert_host.pl [-f path of host file] [-n nagios name] [-t template name]\n";
    print "\n";
    }