一、方案规划
Anolis8系统
192.168.4.50 tntzabbix7虚拟地址
192.168.4.51 tntzabbix7-01
192.168.4.52 tntzabbix7-02
192.168.4.99 oceanbase高可用VIP数据库
oceanbase高可用数据库集群见其他文章,为zabbix7创建数据库
https://90apt.com/5580
二、数据库准备
创建zabbix7租户,创建zabbix7用户和数据库,utf8mb4_bin编码
mysql -h192.168.4.99 -P2883 -uzabbix7@zabbix7#tntob -p
Aq1[R!KM3%,|{sJ?UJ5;u]
数据库具备VIP高可用能力
三、安装zabbix
1、准备主机
准备两台主机,关闭防火墙
systemctl stop firewalld && systemctl disable firewalld
2、安装zabbix
两台主机均安装
rpm -Uvh https://repo.zabbix.com/zabbix/7.0/alma/8/x86_64/zabbix-release-latest-7.0.el8.noarch.rpm
dnf clean all
dnf module list php
dnf module reset php
dnf module install php:8.0
dnf install zabbix-server-mysql zabbix-web-mysql zabbix-nginx-conf zabbix-sql-scripts zabbix-selinux-policy zabbix-agent2
dnf install zabbix-agent2-plugin-mongodb zabbix-agent2-plugin-mssql zabbix-agent2-plugin-postgresql
01主机
导入数据库
先给予zabbix7用户权限,主要是为了给他触发器权限
登录zabbix7租户的root用户
yum install mysql
mysql -h192.168.4.99 -P2883 -uroot@zabbix7#tntob -p
mysql> grant all privileges on zabbix7.* to zabbix7@"%";
Query OK, 0 rows affected (0.15 sec)
修改租户的ob_query_timeout参数,防止导入超时
ob_query_timeout 100000000
再导入数据库
zcat /usr/share/zabbix-sql-scripts/mysql/server.sql.gz | mysql --default-character-set=utf8mb4 -h192.168.4.99 -P2883 -uzabbix7@zabbix7#tntob -p zabbix7
无报错就是导入成功
为Zabbix server配置数据库
编辑配置文件 /etc/zabbix/zabbix_server.conf
DBHost=192.168.4.99
DBName=zabbix7
DBUser=zabbix7@zabbix7#tntob
DBPassword=Aq1[R!KM3%,|{sJ?UJ5;u]
DBPort=2883
HANodeName=tntzabbix7-01
NodeAddress=192.168.4.51:10051
配置默认端口和主机名
/etc/nginx/conf.d/zabbix.conf
listen 8080;
启动Zabbix server和agent进程,并为它们设置开机自启
systemctl restart zabbix-server zabbix-agent2 nginx php-fpm
systemctl enable zabbix-server zabbix-agent2 nginx php-fpm
查看日志是否有异常
cat /var/log/zabbix/zabbix_server.log
数据库提示
Unable to start Zabbix server due to unsupported MySQL database version (8.00.00).
Must be at least (8.00.30).
修改Oceanbase数据库将版本改为8.0.30
重启服务再次查看日志正常
systemctl restart zabbix-server zabbix-agent2 nginx php-fpm
cat /var/log/zabbix/zabbix_server.log
02主机
为Zabbix server配置数据库
编辑配置文件 /etc/zabbix/zabbix_server.conf
DBHost=192.168.4.99
DBName=zabbix7
DBUser=zabbix7@zabbix7#tntob
DBPassword=Aq1[R!KM3%,|{sJ?UJ5;u]
DBPort=2883
HANodeName=tntzabbix7-02
NodeAddress=192.168.4.52:10051
配置默认端口和主机名
/etc/nginx/conf.d/zabbix.conf
listen 8080;
启动Zabbix server和agent进程,并为它们设置开机自启
systemctl restart zabbix-server zabbix-agent2 nginx php-fpm
systemctl enable zabbix-server zabbix-agent2 nginx php-fpm
查看日志是否有异常
cat /var/log/zabbix/zabbix_server.log
无异常
"tntzabbix7-02" node started in "standby" mode
3、配置zabbix
配置01主机
http://192.168.4.51:8080/
数据库连接
主机名和时区
默认账号密码为
Admin zabbix
配置02主机
http://192.168.4.52:8080/
与01主机相同,只有主机名不同
两台主机的状态
四、keepalived高可用部署
zabbix高可用切换时,备用主机10051端口关闭,可以利用此端口配置keepalived
配置01主机
安装keealived
yum install -y keepalived
编写zabbix高可用检测脚本
vi /etc/keepalived/check_zabbix.sh
#!/bin/bash
# 检查10051端口是否有监听
if ss -tuln | grep -q ':10051\b'; then
exit 0 # 检测成功,返回0
else
exit 1 # 检测失败,返回1
fi
执行权限
chmod +x /etc/keepalived/check_zabbix.sh
编辑配置文件
vi /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
router_id keepalived1 #只是名字而已,辅节点改为keepalived2(两个名字一定不能一样)
}
vrrp_script check_zabbix {
script "/etc/keepalived/check_zabbix.sh"
interval 2 #每2秒执行一次
}
vrrp_instance VI_1 {
state MASTER #定义主还是备,备用的话写backup
interface ens192 #VIP绑定接口
virtual_router_id 66 #整个集群的调度器一致(在同一个集群)
priority 100 #(优先权)back改为50(50一间隔)
advert_int 1 #发包
authentication {
auth_type PASS #主备节点认证
auth_pass 1111
}
unicast_src_ip 192.168.4.51 #本机ip
unicast_peer {
192.168.4.52 #其他机器ip,可多个
}
virtual_ipaddress {
192.168.4.50/24 #VIP(自己网段的)
}
track_script {
check_zabbix
}
}
启动服务
systemctl enable --now keepalived
配置02主机
安装keealived
yum install -y keepalived
编写zabbix高可用检测脚本
vi /etc/keepalived/check_zabbix.sh
#!/bin/bash
# 检查10051端口是否有监听
if ss -tuln | grep -q ':10051\b'; then
exit 0 # 检测成功,返回0
else
exit 1 # 检测失败,返回1
fi
执行权限
chmod +x /etc/keepalived/check_zabbix.sh
编辑配置文件
vi /etc/keepalived/keepalived.conf
! Configuration File for keepalived
global_defs {
router_id keepalived2
}
vrrp_script check_zabbix {
script "/etc/keepalived/check_zabbix.sh"
interval 2 #每2秒执行一次
}
vrrp_instance VI_1 {
state BACKUP #设置为backup
interface ens192
nopreempt #设置到back上面,不抢占资源
virtual_router_id 66
priority 50 #辅助改为50
advert_int 1 #检测间隔1s
authentication {
auth_type PASS
auth_pass 1111 #认证类型和密码主备一样,要不然无法互相认证
}
unicast_src_ip 192.168.4.52 #本机ip
unicast_peer {
192.168.4.51 #其他机器ip,可多个
}
virtual_ipaddress {
192.168.4.50/24 #抢占的VIP也一样
}
track_script {
check_zabbix
}
}
启动服务
systemctl enable --now keepalived
五、高可用测试
登录
http://192.168.4.50:8080/
显示为
tntzabbix7-02
tntzabbix7-02重启,刷新网页,切换为zabbix7-01
zabbix7-01关闭zabbix服务
[root@tntzabbix7-01 ~]# systemctl stop zabbix-server
刷新网页,切换为tntzabbix7-02
启动zabbix7-01服务后并不会主动切回01
[root@tntzabbix7-01 ~]# systemctl start zabbix-server
zabbix7-02关闭zabbix服务
[root@tntzabbix7-02 ~]# systemctl stop zabbix-server
刷新网页,切换为tntzabbix7-01
测试结论
高可用能力正常,满足需求。
六、其他
其他配置可查看我的zabbix6文章
https://90apt.com/search/zabbix6/
七、小结
爽
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