Nacos 部署

## 1. 前期准备
安装MySQL、Docker、Docker-compose
准备好数据库账户密码nacos/nacos。修改密码记得同步修改配置文件

## 2. 创建相关资源
 - 2.1 创建目录并进入,后续操作默认在nacos-docker目录下
```
mkdir -p /usr/local/nacos-docker/{db,env,logs}
cd /usr/local/nacos-docker
```

- 2.2 下载数据库文件
```
# 使用了gitee加速,原为https://github.com/alibaba/nacos/的nacos-mysql.sql
wget https://gitee.com/mirrors/Nacos/raw/develop/distribution/conf/nacos-mysql.sql -O db/nacos-mysql.sql
```

- 2.3 添加环境变量文件
```
# nacos-standlone-mysql.env
cat > env/nacos-standlone-mysql.env << EOF
PREFER_HOST_MODE=hostname
MODE=standalone
SPRING_DATASOURCE_PLATFORM=mysql
# mysql 换成自己的IP
MYSQL_SERVICE_HOST=mysql
MYSQL_SERVICE_DB_NAME=nacos
MYSQL_SERVICE_PORT=3306
MYSQL_SERVICE_USER=nacos
MYSQL_SERVICE_PASSWORD=nacos
MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useSSL=false
EOF
```

- 2.4 自定义配置
 
```
# custom.properties
cat > env/custom.properties << EOF
#spring.security.enabled=false
#management.security=false
#security.basic.enabled=false
#nacos.security.ignore.urls=/**
#management.metrics.export.elastic.host=http://localhost:9200
# metrics for prometheus
management.endpoints.web.exposure.include=*

# metrics for elastic search
#management.metrics.export.elastic.enabled=false
#management.metrics.export.elastic.host=http://localhost:9200

# metrics for influx
#management.metrics.export.influx.enabled=false
#management.metrics.export.influx.db=springboot
#management.metrics.export.influx.uri=http://localhost:8086
#management.metrics.export.influx.auto-create-db=true
#management.metrics.export.influx.consistency=one
#management.metrics.export.influx.compressed=true
EOF
```

## 3. 初始化数据库
**如果使用数据库工具直接建库执行nacos-mysql.sql直接进入第4步**
```
# 先输入密码进入mysql
mysql -uroot -p
# 建库nacos
CREATE DATABASE nacos CHARACTER SET utf8;
use nacos;
# 导入
source /usr/local/nacos-docker/db/nacos-mysql.sql;
# 退出mysql
exit
```

## 4. Docker启动
 - 4.1 创建docker-compose.yml
```
version: "2"
services:
  nacos:
    image: nacos/nacos-server:v2.0.3
    container_name: nacos-standalone-mysql
    env_file:
      - ./env/nacos-standlone-mysql.env
    volumes:
      - ./logs/:/home/nacos/logs
      - ./env/custom.properties:/home/nacos/init.d/custom.properties
    ports:
      - "8848:8848"
      - "9848:9848"
      - "9555:9555"
    restart: on-failure
```

- 4.2 启动与关闭
```
# 进入docker-compose.yml同目录下 
# 启动
docker-compose up -d
# 关闭
docker-compose down
```

- 4.3 访问管理页面
 http://你的IP地址:8848/nacos/index.html
 默认账户密码：nacos/nacos
 
## 5. 启动脚本存放地
如果是docker，需要先进入容器内部再找。
```
# 启动
bin/startup.sh
# 关闭
bin/shutdown.sh
```