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feat: add nacos basic startup content
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mx52jing committed Jul 22, 2024
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10 changes: 9 additions & 1 deletion docs/.vitepress/config.ts
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Expand Up @@ -339,7 +339,15 @@ export default {
]
}
]
}
},
{
text: 'Nacos',
collapsible: false,
collapsed: false,
items: [
{ text: '基本概念和安装启动', link: '/knowledge-deposition/Nacos/基本概念和安装启动'},
]
},
],
'/algorithm/': [
{
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137 changes: 137 additions & 0 deletions docs/knowledge-deposition/Nacos/基本概念和安装启动.md
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---
layout: doc
---

# 基本概念和安装启动

## 概念

Nacos(官方网站:[nacos.io](https://nacos.io/))是一个易于使用的平台,专为动态服务发现、配置和服务管理而设计。它帮助您轻松构建云原生应用程序和微服务平台。

Nacos提供四个主要功能:

- 服务发现和服务健康检查

- 动态配置管理
- 动态 DNS 服务
- 服务和元数据管理

## 启动Nacos

:::tip
- 启动nacos有`单机模式运行``集群模式`,今天只使用`单机模式`
:::

我们使用`Docker`来搭建`Nacos`服务,服务目录如下:

```shell
.
├── .env
├── env
│   ├── mysql.env
│   └── nacos-standlone-mysql.env
├── image
│   └── mysql8
│   └── Dockerfile
└── standalone-mysql-8.yaml
```

> `.env`
:::warning
- `Mac Apple`内核的机器要使用`v2.3.1-slim`版本的镜像,不然会报错,其他的内核应该用`v2.3.1`就行
:::

```yaml
NACOS_VERSION=v2.3.1-slim
```

> `env/mysql.env`
```yaml
MYSQL_ROOT_PASSWORD=root # root用户密码
MYSQL_DATABASE=nacos_devtest # 启动nacos后,创建的数据库名称
MYSQL_USER=nacos # 创建的用户名称
MYSQL_PASSWORD=nacos # 创建的nacos用户密码
LANG=C.UTF-8
```

> `env/nacos-standlone-mysql.env`
```yaml
PREFER_HOST_MODE=hostname # 优先主机模式
MODE=standalone # 当前模式
SPRING_DATASOURCE_PLATFORM=mysql
MYSQL_SERVICE_HOST=mysql
MYSQL_SERVICE_DB_NAME=nacos_devtest # mysql 数据库名称
MYSQL_SERVICE_PORT=3306 # 数据库端口
MYSQL_SERVICE_USER=nacos # 数据库用户名
MYSQL_SERVICE_PASSWORD=nacos # 数据库密码
MYSQL_SERVICE_DB_PARAM=characterEncoding=utf8&connectTimeout=1000&socketTimeout=3000&autoReconnect=true&useUnicode=true&useSSL=false&serverTimezone=Asia/Shanghai&allowPublicKeyRetrieval=true
NACOS_AUTH_IDENTITY_KEY=2222
NACOS_AUTH_IDENTITY_VALUE=2xxx
NACOS_AUTH_TOKEN=SecretKey012345678901234567890123456789012345678901234567890123456789
```

> `image/mysql8/Dockerfile`
```yaml
FROM mysql:latest
# 将 https://raw.githubusercontent.com/alibaba/nacos/develop/distribution/conf/mysql-schema.sql
# 这个远程文件下载并添加到镜像中的 /docker-entrypoint-initdb.d/ 目录下,并将其命名为 nacos-mysql.sql
ADD https://raw.githubusercontent.com/alibaba/nacos/develop/distribution/conf/mysql-schema.sql /docker-entrypoint-initdb.d/nacos-mysql.sql
# 将 /docker-entrypoint-initdb.d/nacos-mysql.sql 文件的所有者和所属组更改为 mysql 用户和 mysql 组
RUN chown -R mysql:mysql /docker-entrypoint-initdb.d/nacos-mysql.sql
# 对外暴露 3306端口
EXPOSE 3306
# 启动 MySQL 服务器,并设置字符集为 utf8mb4 和排序规则为 utf8mb4_unicode_ci
CMD ["mysqld", "--character-set-server=utf8mb4", "--collation-server=utf8mb4_unicode_ci"]
```

> `standalone-mysql-8.yaml`
```yaml
version: "2.6"
services:
mysql:
container_name: MYSQL_NACOS
restart: always
build:
context: .
dockerfile: ./image/mysql8/Dockerfile
env_file:
- ./env/mysql.env
volumes:
- ./mysql:/var/lib/mysql
ports:
- "1004:3306"
# 通过命令检查容器是否健康运行
healthcheck:
test: [ "CMD", "mysqladmin" ,"ping", "-h", "localhost" ]
interval: 5s
timeout: 10s
retries: 10
nacos:
image: nacos/nacos-server:${NACOS_VERSION}
container_name: NACOS_STANDALONE_MYSQL
restart: always
env_file:
- ./env/nacos-standlone-mysql.env
volumes:
- ./standalone-logs/:/home/nacos/logs
ports:
- "8848:8848"
- "9848:9848"
depends_on:
mysql:
condition: service_healthy
```
启动`nacos`

```shell
docker-compose -f standalone-mysql-8.yaml up -d
```

然后访问[http://localhost:8848/nacos](http://localhost:8848/nacos)就可以看到主界面

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