zabbix搭建-服务监控报警与自动恢复

Posted 2020-12-19 xiaochangwei

#zabbix部署参考 https://www.cnblogs.com/itbox/p/12142066.html

#关闭防火墙
systemctl disable firewalld.service

#关闭Selinux
vim /etc/selinux/config
SELINUX=diabled

#安装apache
yum -y install httpd

#启动并设置为自启动
systemctl enable httpd
systemctl start httpd

#安装好mysql或使用其他地址mysql

#安装php环境
yum install -y php php-mysql

#安装zabbix
#1.下载安装release包，此包用来更新yum仓库
rpm -ivh https://repo.zabbix.com/zabbix/4.4/rhel/7/x86_64/zabbix-release-4.4-1.el7.noarch.rpm

#2.安装Zabbix组件包（注意选择组件，zabbixServer这台机器我不安装agent，另一台机器则只安装agent）
yum install -y zabbix-server-mysql zabbix-get zabbix-web zabbix-web-mysql zabbix-agent zabbix-sender

#配置数据库
#1.创建数据库并设置编码为utf8
mysql> create database zabbix character set utf8 collate utf8_bin;
Query OK, 1 row affected (0.00 sec)

mysql> show databases;
+--------------------+
| Database           |
+--------------------+
| information_schema |
| mysql              |
| performance_schema |
| sys                |
| zabbix             |
+--------------------+
5 rows in set (0.00 sec)
#2.创建zabbix账户并设置密码
mysql> grant all privileges on zabbix.* to zabbix@localhost identified by ‘AbcdefG123!‘;
Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> grant all privileges on zabbix.* to xiao@% identified by ‘AbcdefG123!‘;
#3.刷新权限
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
#4.导入数据库初始化脚本
cd /usr/share/doc/zabbix-server-mysql-4.4.4/
gunzip create.sql.gz
mysql -uroot -p zabbix <create.sql
#5.确认表已经导入

#配置zabbix server数据库信息
vim /etc/zabbix/zabbix_server.conf
DBHost=localhost
DBName=zabbix
DBUser=Zabbix
DBPassword=xxxxxx

#启动zabbix server并设置为自启动
systemctl start zabbix-server
systemctl enable zabbix-server

#修改市区为上海 Asia/Shanghai
vi /etc/httpd/conf.d/zabbix.conf
#重启httpd
systemctl restart httpd


#登陆并配置数据库账号密码和/etc/zabbix/zabbix_server.conf中的一致
http://IP/zabbix

默认登陆账户Admin（首字母大写）
默认登录密码zabbix

#安装agent
yum install -y zabbix-agent

#1.配置zabbix server所在地址
cd /etc/zabbix/
vi zabbix_agentd.conf

Server=127.0.0.1
ServerActive=127.0.0.1
Hostname=Zabbix server      #这个需要和配置-主机列表中的名称对应

systemctl start zabbix-agent
systemctl enable zabbix-agent


#自动监测异常，通知并恢复
先建立模板-应用集-监控项-触发器，最后才是动作

首先要确保agent端开启远程执行命令
sed -i ‘s|# EnableRemoteCommands=0|EnableRemoteCommands=1|g‘ /usr/local/zabbix/etc/zabbix_agentd.conf

动作中配置远程命令时候最前面加上sudo，并在agent上配置zabbix的权限：
# visudo
#允许zabbix用户在无密码清空下执行所有操作或者部门操作zabbix  ALL=(ALL) NOPASSWD:/etc/init.d/nginx restart
zabbix  ALL=(ALL) NOPASSWD:ALL
#Default requiretty  #如果此行没注释，请一并注释


#自定义脚本监控 https://www.cnblogs.com/yanjieli/p/10833311.html
# vim /etc/zabbix/script/service_status.sh
#!/bin/bash
#Desc：zabbix 远程执行命令、重启应用 nginx、mysql、php、等
case $1 in
    Docker)
        result=`systemctl status docker |grep ‘active (running)‘ |wc -l`
        echo $result
        ;;
    Mysql)
        result=`pidof mysqld  |wc -l`
        echo $result
        ;;
    *)
        echo "Usage:$0(Docker|Mysql)"
        ;;
esac

#在配置文件中配置调用方式和脚本
[root@localhost zabbix]# cat zabbix_agentd.d/service_status.conf 
UserParameter=myservice.status[*],/etc/zabbix/script/service_status.sh $1

#创建触发器并设定判定异常时候的标准
{checke service status:myservice.status[Docker].last()}=0

#在agent-server端测试能否调通
zabbix_get -s 192.168.1.14 -k "myservice.status[Docker]"

#最后配置动作相关

#最后可测试，比如停掉docker服务后会发现docker自动重启了，邮件也会收到异常和恢复的通知

##########################################问题点##########################################
1.zabbix提示the zone for php is not set解决
https://blog.csdn.net/jing875480512/article/details/79002404