前言
监控系统对于公司和运维人员来说，是了解线上业务重要的手段。所以双机互备是十分必要。下面就是实际工作中用到的zabbix双机互备搭建方案。
准备工作
首先准备需要的相关资源
版本信息
代码语言：javascript复制- 系统版本： CentOS Linux release 7.6.1810
- 软件版本：
- zabbix-release-5.4.6
- mariadb-10.3.28-1
- keepalived服务器资源
代码语言：javascript复制- 4核8G 500G硬盘 * 2台IP地址
代码语言：javascript复制- 10.10.20.1 ( server-1191) (m1)
- 10.10.20.2 ( server-1192) (m2)
- 10.10.10.97 (VIP)项目代码下载
下载地址：
基础环境配置
系统初始化
执行脚本
代码语言：javascript复制sh system_init_v3.sh //系统初始化
sh system_init_python3.sh //安装python3
sh system_init_docker.sh //安装docker和docker-compose修改dns
代码语言：javascript复制vim /etc/sysconfig/network-scripts/ifcfg-eno1
DNS1=223.5.5.5
DNS2=114.114.114.114修改防火墙规则
代码语言：javascript复制vim /etc/sysconfig/iptables
-A INPUT -p tcp -s 10.10.20.1 -m multiport --dport 3306,873 -j ACCEPT
-A INPUT -p tcp -s 10.10.20.2 -m multiport --dport 3306,873 -j ACCEPT
-A INPUT -p tcp -s 10.10.20.97 -m multiport --dport 3306,873 -j ACCEPT
-A INPUT -p tcp -s 172.16.238.0/24 -j ACCEPT
-A INPUT -p tcp -s 172.16.239.0/24 -j ACCEPT
//重启服务生效
systemctl reload iptables
systemctl restart docker
//验证
nc -z -v -w 10 10.10.20.2 3306
nc -z -v -w 10 10.10.20.1 3306mysql数据库的主主配置
启动数据库(m1,m2同时执行)
代码语言：javascript复制cd /opt/zabbix-ha/mariadb-m-m/m1/
docker-compose up -d启用GTID 主主复制
- m1,m2同时配置
//m1和m2同时操作
mysql -uroot -pxxxxx -h 127.0.0.1
//确认系统时间
select now();
//确认字符集
show variables like '%character%';
//创建同步账号
grant replication slave,replication client on *.* to 'slave'@'10.10.20.%' identified by "slave@123";
flush privileges;- m1 到m2 的同步配置
//m1 执行
//查看master状态
show master status;
下图
//查看gtid_binlog
show variables like '%gtid_binlog%';
//m2执行
//设置slave_pos
set global gtid_slave_pos='0-11-7192';
//配置master
change master to master_host='mariadb_m1',master_user='slave',master_password='slave@123',master_port=3306,master_use_gtid=slave_pos,master_connect_retry=30;
//启动
start slave;
- m2到m1的同步配置
//m1配置
set global gtid_slave_pos='0-12-7192';
//配置master
change master to master_host='mariadb_m2',master_user='slave',master_password='slave@123',master_port=3306,master_use_gtid=slave_pos,master_connect_retry=30;
//启动
start slave;zabbix server 双机部署
mysql建库并授权
代码语言：javascript复制//登录
mysql -uroot -pUtemyan001db -h 127.0.0.1
//建库
create database zabbix character set utf8 collate utf8_bin;
//授权
create user 'zabbix'@'172.16.237.1' identified by 'Utemyan001zbX';
grant all privileges on zabbix.* to 'zabbix'@'172.16.237.1';
flush privileges;更新防火墙规则
代码语言：javascript复制vim /etc/sysconfig/iptables
-A INPUT -p tcp -s 172.16.238.0/24 -j ACCEPT
-A INPUT -p tcp -s 172.16.239.0/24 -j ACCEPT
//重启服务生效
systemctl reload iptables
systemctl restart docker启动zabbix-server并测试
登录m1,m2
代码语言：javascript复制cd /opt/ly-traffic/zabbix54
docker-compose up安装keepalived并配置
- 安装
yum -y install keepalived mariadb - 配置并启动
//m1上执行
ln -sf /opt/zabbix-ha/keepalived/m1-keepalived.conf /etc/keepalived/keepalived.conf
ln -sf /opt/zabbix-ha/keepalived/scripts/check-backup.sh /etc/keepalived/check.sh
systemctl enable --now keepalived
//m2上执行
ln -sf /opt/zabbix-ha/keepalived/m2-keepalived.conf /etc/keepalived/keepalived.conf
ln -sf /opt/zabbix-ha/keepalived/scripts/check-backup.sh /etc/keepalived/check.sh
systemctl enable --now keepalived访问zabbix
- zabbix可用性测试
curl -s -X POST -H 'Content-Type:application/json' -d '{ "jsonrpc": "2.0", "method": "user.login", "params": {"user": "Admin", "password": "LuoyunNOC-01" }, "id": 1 }' http://127.0.0.1/api_jsonrpc.php
