Docker Maven插件本地构建镜像发布至远程服务器

àì夳堔傛蜴生んèń 2022-05-28 07:14 200阅读 0赞

环境使用阿里云ECS服务器及Ubuntu 16.04进行测试

# Ubuntu 16.04安装Docker #

1.安装步骤

# step 1: 安装必要的一些系统工具，添加apt支持https的URLs(如不存在/usr/lib/apt/methods/https这个文件，先安装apt-transport-https包)
    sudo apt-get update
    sudo apt-get -y install apt-transport-https ca-certificates curl software-properties-common
    # step 2: 安装GPG证书
    curl -fsSL http://mirrors.aliyun.com/docker-ce/linux/ubuntu/gpg | sudo apt-key add -
    # Step 3: 写入软件源信息
    sudo add-apt-repository "deb [arch=amd64] http://mirrors.aliyun.com/docker-ce/linux/ubuntu $(lsb_release -cs) stable"
    # Step 4: 更新并安装Docker-CE
    sudo apt-get -y update
    sudo apt-get -y install docker-ce

2.安装后查看版本信息

docker -v

![查看docker版本][docker]

3.可以从镜像仓库拉取一个测试镜像

docker pull hello-world

![docker测试镜像][docker 1]

4.查询可用镜像

docker images

![查询可用镜像][70]

5.启动docker服务

service docker start

6.启动测试镜像

docker run hello-world

![启动测试镜像][70 1]

# 创建测试工程 #

1.使用IDEA生成一个基础的Spring Boot工程

2.在pom文件中添加docker-maven-plugin插件

<?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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
    
       <groupId>com.laravelshao.springboot</groupId>
       <artifactId>deploy-docker</artifactId>
       <version>0.0.1-SNAPSHOT</version>
       <packaging>jar</packaging>
    
       <name>deploy-docker</name>
       <description>Demo project for Spring Boot</description>
    
       <parent>
          <groupId>org.springframework.boot</groupId>
          <artifactId>spring-boot-starter-parent</artifactId>
          <version>1.5.9.RELEASE</version>
          <relativePath/> 
       </parent>
    
       <properties>
          <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
          <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
          <java.version>1.8</java.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-test</artifactId>
             <scope>test</scope>
          </dependency>
       </dependencies>
    
       <build>
          <plugins>
             <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
             </plugin>
             
             <plugin>
                <groupId>com.spotify</groupId>
                <artifactId>docker-maven-plugin</artifactId>
                <version>1.0.0</version>
                <configuration>
                   <imageName>micro-deploy-docker</imageName>
                   
                   <dockerHost> http://X.X.X.X:2375</dockerHost>
                   <dockerDirectory>docker</dockerDirectory>
                   <resources>
                      <resource>
                         <targetPath>/</targetPath>
                         <directory>${project.build.directory}</directory>
                         <include>${project.build.finalName}.jar</include>
                      </resource>
                   </resources>
                </configuration>
                <dependencies>
                   <dependency>
                      <groupId>org.apache.httpcomponents</groupId>
                      <artifactId>httpclient</artifactId>
                      <version>4.4</version>
                   </dependency>
                </dependencies>
             </plugin>
          </plugins>
       </build>
    </project>

3.在工程根目录下添加docker文件夹并添加Dockerfile文件

FROM frolvlad/alpine-oraclejdk8:slim
    
    VOLUME /opt/common
    
    ADD deploy-docker-0.0.1-SNAPSHOT.jar app.jar
    
    ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]
    
    EXPOSE 8080

4.提供一个测试接口

@RestController
    public class DemoController { 
    
        @RequestMapping("/hello")
        public String hello(){
            return "hello world docker";
        }
    }

5.构建镜像并发布到远程服务器

mvn clean package docker:build

![构建docker镜像][docker 2]

6.查看相关博客后发现远程服务器必须开启docker远程api

解决方法：

① 在/etc/systemd/system目录下新建目录docker.service.d，并新建文件http-proxy.conf，添加以下内容保存

[Service]
    ExecStart=
    ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H unix:///var/run/docker.sock

② 重新载入配置

systemctl daemon-reload

③ 重启docker服务

service docker restart

④ 查看docker进程，发现配置已经更新

ps -ef | grep docker

![查看docker进程][docker 3]

7.再次尝试构建镜像发布到远程服务器，还是报连接失败

mvn clean package docker:build

![构建镜像失败][70 2]

解决方法：

实在不知道那还有问题，就尝试在阿里云ECS管理控制台有没有相关设置，突然看到有一个安全组配置，添加一个安全组规则

![阿里云安全组管理][70 3]

![开放端口2375][2375]

8.第三次尝试构建镜像发布到远程服务器，总算推送成功  
![镜像构建成功][70 4]

9.查询可用镜像，存在刚才构建的镜像

docker images

![查看刚才构建镜像][70 5]

10.启动当前镜像

docker run -p 8080:8080 micro-deploy-docker:latest

11.请求测试接口[http://X.X.X.X:8080/hello][http_X.X.X.X_8080_hello]，发现无法访问，这时需要在阿里云的安全组中开放8080端口供服务请求使用  
![请求测试接口][70 6]

添加规则之后再次请求，总算成功了，不容易。

[docker]: /images/20220528/361e8cc05c5a4ebe956d406d8521eb4a.png
[docker 1]: /images/20220528/62d36ad000874c9082723b1a8288567d.png
[70]: /images/20220528/7d1b24be68324d4593fe09c470377a0c.png
[70 1]: /images/20220528/e352ca33c0854b87911f3f5d31250506.png
[docker 2]: /images/20220528/9652fd26880e4ebba2a640041668312a.png
[docker 3]: /images/20220528/c7d21dcbc5544d4098f4199d75b167f1.png
[70 2]: /images/20220528/3f06aebd61e7453ea8bb2c83e720c66c.png
[70 3]: /images/20220528/e1e03afb9ebf4ace817d6375967b057b.png
[2375]: /images/20220528/59ee9ffe78e14d4ab41222c47fc187f1.png
[70 4]: /images/20220528/4a63278c0171411da1da4c9374110e2b.png
[70 5]: /images/20220528/3b63ef081e4e4630bd2d7213a8c172c4.png
[http_X.X.X.X_8080_hello]: http://X.X.X.X:8080/hello
[70 6]: /images/20220528/22fe771e15b541f1933b7d2fc4b1c8b1.png