Docker微服务实战

灰太狼 2023-10-11 20:49 15阅读 0赞

**目录**

一、新建微服务

二、通过dockerfile发布微服务部署到docker容器

--------------------

## 一、新建微服务 ##

建Module docker\_boot

POM

<?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">
        <modelVersion>4.0.0</modelVersion>
        <parent>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-parent</artifactId>
            <version>2.5.6</version>
            <relativePath/>
        </parent>
    
        <groupId>com.atguigu.docker</groupId>
        <artifactId>docker_boot</artifactId>
        <version>0.0.1-SNAPSHOT</version>
    
        <properties>
            <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
            <maven.compiler.source>1.8</maven.compiler.source>
            <maven.compiler.target>1.8</maven.compiler.target>
            <junit.version>4.12</junit.version>
            <log4j.version>1.2.17</log4j.version>
            <lombok.version>1.16.18</lombok.version>
            <mysql.version>5.1.47</mysql.version>
            <druid.version>1.1.16</druid.version>
            <mapper.version>4.1.5</mapper.version>
            <mybatis.spring.boot.version>1.3.0</mybatis.spring.boot.version>
        </properties>
    
        <dependencies>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-actuator</artifactId>
            </dependency>
            
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>
    
        <build>
            <plugins>
                <plugin>
                    <groupId>org.springframework.boot</groupId>
                    <artifactId>spring-boot-maven-plugin</artifactId>
                </plugin>
                <plugin>
                    <groupId>org.apache.maven.plugins</groupId>
                    <artifactId>maven-resources-plugin</artifactId>
                    <version>3.1.0</version>
                </plugin>
            </plugins>
        </build>
    
    </project>

YML

server.port=6001

主启动类

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);
        }
    
    }

业务类

@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();
        }
    }

本地自测通过

![3e7973988a074952acf1d83d00b2a4cb.png][]

## 二、通过dockerfile发布微服务部署到docker容器 ##

**（一）IDEA工具里面搞定微服务jar包**

![a67ee62dfeaa44998c13855f1586268e.png][]

**（二）编写Dockerfile**

**Dockerfile内容**

# 基础镜像使用java
    FROM java:8
    # 作者
    MAINTAINER zjy
    # 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zjy_docker.jar
    ADD docker_boot-0.0.1-SNAPSHOT.jar zjy_docker.jar
    # 运行jar包
    RUN bash -c 'touch /zjy_docker.jar'
    ENTRYPOINT ["java","-jar","/zjy_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

**（三）构建镜像**

docker build -t zjy_docker_boot:1.6 .

![372620cd087e4fc19eeca43e03374a91.png][]

**（四）运行容器**

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

![5b1544b1269d400aaaf4d29b4f62db11.png][]

**（五）访问测试**

![ab17509ac16e448dbe0732cbd0cdced8.png][]

[3e7973988a074952acf1d83d00b2a4cb.png]: https://img-blog.csdnimg.cn/3e7973988a074952acf1d83d00b2a4cb.png
[a67ee62dfeaa44998c13855f1586268e.png]: https://img-blog.csdnimg.cn/a67ee62dfeaa44998c13855f1586268e.png
[372620cd087e4fc19eeca43e03374a91.png]: https://img-blog.csdnimg.cn/372620cd087e4fc19eeca43e03374a91.png
[5b1544b1269d400aaaf4d29b4f62db11.png]: https://img-blog.csdnimg.cn/5b1544b1269d400aaaf4d29b4f62db11.png
[ab17509ac16e448dbe0732cbd0cdced8.png]: https://img-blog.csdnimg.cn/ab17509ac16e448dbe0732cbd0cdced8.png