3.1 通过 IDEA 新建一个普通微服务模块

1. 建 Module：docker_boot

2. 改 POM ```xml <?xml version=”1.0” encoding=”UTF-8”?> <project xmlns=”http://maven.apache.org/POM/4.0.0“ xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance“

     xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">

   4.0.0

   org.springframework.boot spring-boot-starter-parent 2.5.6

   com.atguigu.docker docker_boot

   0.0.1-SNAPSHOT UTF-8 1.8 1.8 4.12 1.2.17 1.16.18 5.1.47 1.1.16 4.1.5 1.3.0 org.springframework.boot spring-boot-starter-web org.springframework.boot spring-boot-starter-actuator org.springframework.boot spring-boot-starter-test test org.springframework.boot spring-boot-maven-plugin org.apache.maven.plugins maven-resources-plugin 3.1.0

3. 写 YML
```properties
server.port=6001

1. 主启动 ```java package com.atguigu.docker;

import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication;

@SpringBootApplication public class DockerBootApplication { public static void main(String[] args) { SpringApplication.run(DockerBootApplication.class, args); } }

6. 业务类
```java
package com.atguigu.docker.controller;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.util.UUID;

/**
 * @auther zzyy
 * @create 2021-10-25 17:43
 */
@RestController
public class OrderController
{
    @Value("${server.port}")
    private String port;

    @RequestMapping("/order/docker")
    public String helloDocker()
    {
        return "hello docker"+"\t"+port+"\t"+ UUID.randomUUID().toString();
    }

    @RequestMapping(value ="/order/index",method = RequestMethod.GET)
    public String index()
    {
        return "服务端口号: "+"\t"+port+"\t"+UUID.randomUUID().toString();
    }
}

3.2 通过 dockerfile 发布微服务部署到 docker 容器

1. IDEA 工具里面搞定微服务 jar 包

1. 编写 Dockerfile ```dockerfile

   基础镜像使用java

   FROM java:8

jdk11 版本

FROM openjdk:11

作者

LABEL org.opencontainers.image.authors=’zzyy’

VOLUME 指定临时文件目录为/tmp，在主机/var/lib/docker目录下创建了一个临时文件并链接到容器的/tmp

VOLUME /tmp

将jar包添加到容器中并更名为zzyy_docker.jar

ADD docker_boot-0.0.1-SNAPSHOT.jar zzyy_docker.jar

运行jar包

RUN bash -c ‘touch /zzyy_docker.jar’ ENTRYPOINT [“java”,”-jar”,”/zzyy_docker.jar”]

暴露6001端口作为微服务

EXPOSE 6001

将微服务 jar 包和 Dockerfile 文件上传到同一个目录下 /mydocker<br />![image.png](https://cdn.nlark.com/yuque/0/2022/png/390086/1643298012111-be230b6b-01c6-4ad6-9cf1-f66cd614f3b4.png#clientId=u7cdc158c-ccd1-4&crop=0&crop=0&crop=1&crop=1&from=paste&height=214&id=u6fb99ee5&margin=%5Bobject%20Object%5D&name=image.png&originHeight=214&originWidth=903&originalType=binary&ratio=1&rotation=0&showTitle=false&size=35792&status=done&style=none&taskId=ufa6fd355-cf7e-41dc-909d-d639ffadfa9&title=&width=903)

3. 构建镜像
```bash
docker build -t zzyy_docker:1.6 .

1. 运行容器

   docker run -d -p 6001:6001 zzyy_docker:1.6
   

   

2. 访问测试