CentOS7下部署开源网络监控工具Observium

具体部署步骤如下

1、基础环境准备

1）关闭SELINUX

setenforce 0
sed -i 's/^SELINUX=.*$/SELINUX=disabled/' /etc/selinux/config

2）yum源配置

wget -O /etc/yum.repos.d/CentOS-Base.repo https://mirrors.aliyun.com/repo/Centos-7.repo
sed -i -e '/mirrors.cloud.aliyuncs.com/d' -e '/mirrors.aliyuncs.com/d' /etc/yum.repos.d/CentOS-Base.repo
wget -O /etc/yum.repos.d/epel.repo http://mirrors.aliyun.com/repo/epel-7.repo

yum -y install http://yum.opennms.org/repofiles/opennms-repo-stable-rhel7.noarch.rpm
yum -y install http://rpms.remirepo.net/enterprise/remi-release-7.rpm

yum install yum-utils
yum-config-manager --enable remi-php72

yum install wget.x86_64 httpd.x86_64 php.x86_64 php-opcache.x86_64 php-mysql.x86_64 php-gd.x86_64 
            php-posix php-pear.noarch cronie.x86_64 net-snmp.x86_64 net-snmp-utils.x86_64 
            fping.x86_64 mariadb-server.x86_64 mariadb.x86_64 MySQL-python.x86_64 rrdtool.x86_64 
            subversion.x86_64  jwhois.x86_64 ipmitool.x86_64 graphviz.x86_64 ImageMagick.x86_64 
            php-sodium.x86_64

2、下载observium社区版本最新安装包并解压

http://www.observium.org/observium-community-latest.tar.gz

mkdir -p /opt/observium && cd /opt
tar -zxf observium-community-latest.tar.gz

3、MariaDB数据库设置

1）MariaDB数据库服务启动，密码初始化

systemctl enable mariadb
systemctl start mariadb
/usr/bin/mysqladmin -u root password 'MySQL@2021'

2）创建observium数据库，并设置observium库的账号与密码

mysql -uroot -pMySQL@2021
CREATE DATABASE observium DEFAULT CHARACTER SET utf8 COLLATE utf8_general_ci;
GRANT ALL PRIVILEGES ON observium.* TO 'observium'@'localhost' IDENTIFIED BY 'observium@2021';
exit;

3）修改config.php中数据库连接参数

cp config.php.default config.php
vi config.php
修改数据库的账户与密码为上面设置的mariadb的账户与密码
$config['db_user']      = 'observium';
$config['db_pass']      = 'observium@2021';

4)Insert MySQL Schema

./discovery.php -u

4、在config.php中添加fping工具配置

which fping
/usr/sbin/fping

vi config.php
$config['fping'] = "/usr/sbin/fping";

5、rrd及httpd服务相关配置

1）Create the rrd directory to store RRDs in:

cd /opt/observium
mkdir rrd
chown apache:apache rrd

2）httpd服务配置文件添加与修改

vi /etc/httpd/conf.d/observium.conf 
<VirtualHost *>
   DocumentRoot /opt/observium/html/
   ServerName  observium.domain.com
   CustomLog /opt/observium/logs/access_log combined
   ErrorLog /opt/observium/logs/error_log
   <Directory "/opt/observium/html/">
     AllowOverride All
     Options FollowSymLinks MultiViews
     Require all granted
   </Directory>
</VirtualHost> 

3）Create logs directory for apache

mkdir /opt/observium/logs
chown apache:apache /opt/observium/logs

6、设置observium crond定时任务脚本

vi /etc/cron.d/observium
# Run a complete discovery of all devices once every 6 hours
33  */6   * * *   root    /opt/observium/discovery.php -h all >> /dev/null 2>&1

# Run automated discovery of newly added devices every 5 minutes
*/5 *     * * *   root    /opt/observium/discovery.php -h new >> /dev/null 2>&1

# Run multithreaded poller wrapper every 1 minutes
*/1 *     * * *   root    /opt/observium/poller-wrapper.py >> /dev/null 2>&1

# Run housekeeping script daily for syslog, eventlog and alert log
13 5 * * * root /opt/observium/housekeeping.php -ysel

# Run housekeeping script daily for rrds, ports, orphaned entries in the database and performance data
47 4 * * * root /opt/observium/housekeeping.php -yrptb

systemctl reload crond

7、web管理员用户添加并开启httpd服务

./adduser.php admin admin2021 10

systemctl enable httpd
systemctl start httpd
firewall-cmd --permanent --zone=public --add-service=http
firewall-cmd --reload

8、监控主机snmpd服务安装与配置

yum install net-snmp net-snmp-utils
systemctl enable snmpd
vi /etc/snmp/snmpd.conf

1)OID修改

原先view    systemview    included   .1.3.6.1.2.1.1
修改为
view    systemview    included   .1.3.6.1.2.1

2）系统位置信息修改

syslocation Unknown (edit /etc/snmp/snmpd.conf)
#syslocation Unknown (edit /etc/snmp/snmpd.conf)
syslocation HangZhou,Zhejiang,China

cat /etc/snmp/snmpd.conf | grep systemview
cat /etc/snmp/snmpd.conf | grep syslocation

systemctl start snmpd
netstat -anp | grep 161

firewall-cmd --permanent --zone=public --add-service=snmp
firewall-cmd --reload

9、登录web界面，并添加监控设备

./add_device.php <hostname> <community> v2c
Do an initial discovery and polling run to populate the data for the new device:

./discovery.php -h all
./poller.php -h all

10、syslog日志监控功能启用

// Enable Syslog
$config['enable_syslog']                = 1;

vi /etc/rsyslog.conf
最后行添加
*.* @192.168.31.84
systemctl restart rsyslog