一、Nacos简介

Nacos /nɑ:kəʊs/是Dynamic Naming and Configuration Service的首字母简称，一个更易于构建云原生应用的动态服务发现、配置管理和服务管理平台。

Nacos主要提供三种功能：服务注册与发现、动态配置服务、动态DNS服务。

二、安装JDK

JDK下载地址：https://www.oracle.com/cn/java/technologies/javase/jdk11-archive-downloads.html

1、安装JDK-11.0.17

[root@localhost ~]# yum -y install jdk-11.0.17_linux-x64_bin.rpm

2、查看是否安装成功

[root@localhost ~]# java -version

java version "11.0.17" 2022-10-18 LTS

Java(TM) SE Runtime Environment 18.9 (build 11.0.17+10-LTS-269)

Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.17+10-LTS-269, mixed mode)

三、安装MySQL

1、配置清华大学Yum源

[root@localhost ~]# vim /etc/yum.repos.d/mysql-community.repo

[mysql-connectors-community]
name=MySQL Connectors Community
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-connectors-community-el7-$basearch/
enabled=1
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

\[mysql-tools-community\]
name=MySQL Tools Community
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-tools-community-el7-$basearch/
enabled=1
gpgcheck=1
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql


\[mysql-5.7-community\]
name=MySQL 5.7 Community Server
baseurl=https://mirrors.tuna.tsinghua.edu.cn/mysql/yum/mysql-5.7-community-el7-$basearch/
enabled=1
gpgcheck=0
gpgkey=https://repo.mysql.com/RPM-GPG-KEY-mysql

2、安装MySQL-5.7

[root@localhost ~]# yum -y install mysql-community-server

3、启动MySQL

[root@localhost ~]# systemctl start mysqld

4、登录MySQL

1）查看初始化后生成的密码

[root@localhost ~]# grep 'password' /var/log/mysqld.log

2023-03-25T12:54:39.593636Z 1 [Note] A temporary password is generated for root@localhost: hiPZY4U6yZ_6

2）登录MySQL

[root@localhost ~]# mysql -uroot -p'hiPZY4U6yZ_6'

Welcome to the MySQL monitor. Commands end with ; or \g.

Your MySQL connection id is 3

Server version: 5.7.42-log MySQL Community Server (GPL)

Oracle is a registered trademark of Oracle Corporation and/or its

affiliates. Other names may be trademarks of their respective

owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

初始化后需重置密码才能执行sql

mysql> set password=password('Aa123456@!');

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

mysql> select version();

+---------------+

| version() |

+---------------+

| 5.7.42-log |

+---------------+

1 row in set (0.00 sec)

四、安装Nacos

1、下载Nacos软件包

[root@localhost ~]# wget https://github.com/alibaba/nacos/releases/download/1.4.3/nacos-server-1.4.3.zip

2、解压

[root@localhost ~]# unzip nacos-server-1.4.3.zip -d /usr/local

3、修改startup.sh启动脚本

[root@localhost ~]# vim /usr/local/nacos/bin/startup.sh

添加JAVA_HOME

JAVA_HOME="/usr/java/jdk-11.0.17"

4、导入Nacos自带SQL文件

1）创建数据库及授权

[root@localhost ~]# mysql -uroot -p

Enter password:

mysql> create database nacos;

Query OK, 1 row affected (0.00 sec)

mysql> grant all on nacos.* to nacos@'localhost' identified by 'nacos';

Query OK, 0 rows affected, 1 warning (0.00 sec)

mysql> flush privileges;

Query OK, 0 rows affected (0.00 sec)

2）导入SQL文件

[root@localhost ~]# mysql -unacos -pnacos nacos < /usr/local/nacos/conf/nacos-mysql.sql

5、修改Nacos配置文件

[root@localhost ~]# vim /usr/local/nacos/conf/application.properties

6、配置系统服务

[root@localhost ~]# vim /usr/lib/systemd/system/nacos.service

[Unit]
Description=nacos
After=network.target

\[Service\]
Type=forking
ExecStart=/usr/local/nacos/bin/startup.sh -m standalone
ExecReload=/usr/local/nacos/bin/shutdown.sh
ExecStop=/usr/local/nacos/bin/shutdown.sh
PrivateTmp=true


\[Install\]
WantedBy=multi-user.target

7、启动Nacos（单机模式）

[root@localhost ~]# systemctl daemon-reload

[root@localhost ~]# systemctl start nacos

[root@localhost ~]# systemctl enable nacos

8、访问Nacos

1）浏览器输入http://192.168.0.198:8848/nacos，如下图所示