nacos集群

一、系统信息

# cat /etc/anolis-release 
Anolis OS release 8.9
# uname -r
5.10.134-18.an8.x86_64
二、服务器信息

主机名	IP	服务
pro-nacos1-7200	192.168.7.200	java version "1.8.0_261" nacos-server-2.0.3.zip keepalived
pro-nacos2-7201	192.168.7.201	java version "1.8.0_261" nacos-server-2.0.3.zip keepalived
pro-nacos3-7202	192.168.7.202	java version "1.8.0_261" nacos-server-2.0.3.zip keepalived
vip	192.168.7.203

三、jdk部署

# tar -zxf /opt/softs/jdk-8u261-linux-x64.tar.gz -C  /usr/local

# vi /etc/profile

export JAVA_HOME=/usr/local/jdk1.8.0_261
export PATH=${PATH}:${JAVA_HOME}/bin

# source /etc/profile
# java -version
java version "1.8.0_261"
Java(TM) SE Runtime Environment (build 1.8.0_261-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.261-b12, mixed mode)

四、nacos部署

# unzip /opt/softs/nacos-server-2.0.3.zip -d  /usr/local

生成密钥

推荐规格：
长度 ≥32 字节（64 字符，若使用十六进制）
包含大小写字母（A-Za-z）、数字（0-9）、特殊符号（!@#$%^&*）

# openssl rand -hex 32

需要修改该的
# vi nacos/conf/application.properties
spring.datasource.platform=mysql
db.num=1

db.url.0=jdbc:mysql://192.168.2.104:3306/nacos_config?characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&serverTimezone=UTC
db.user.0=XXXX
db.password.0=XXXX

nacos.core.auth.enabled=true    改为false

nacos.core.auth.default.token.secret.key=xxxxxxx

nacos.core.auth.enable.userAgentAuthWhite=false

nacos.core.member.lookup.type=file


## 所有节点添加nacos集群使用的地址：
# cat cluster.conf
#2025-03-10T20:21:18.874
192.168.7.200:8848
192.168.7.201:8848
192.168.7.202:8848

所有节点配置nacos集群服务器ip：

7.200

7.201

7.202

五、keeplibed

# mkdir /opt/script/

# dnf install keepalived

此脚本所有节点一致

# cat /opt/script/check_nginx.sh 
#!/bin/bash
network=`ifconfig ens18 |grep -w inet |awk '{print $2}'`
nacos=`netstat -tlnp|grep 8848|wc -l`
if [ "$nacos" -eq 0 ];then
    /opt/script/dingding_nginx.py "host: $(hostname)--host_IP: $network: nginx Service heartbeat detection is abnormal, please log in to the server to check; VIP has been switched, please note"
    systemctl stop keepalived.service
fi

# chmod +x /opt/script/check_nginx.sh

7.200配置

7.201配置

7.203