SpringBoot 整合 Docker的详细过程

@RestController
@RequestMapping("/")
public class HelloController {

    @GetMapping("/hello")
    public String helle() {
        return "Hello World";
    }
}

server:
  port: 8080

spring:
  application:
    name: docker-deploy-test

docker:
  host: http://xxx.xxx.xxx.xxx:2375

$vim /usr/lib/systemd/system/docker.service
 
# ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock
ExecStart=/usr/bin/dockerd -H tcp://0.0.0.0:2375 -H fd:// --containerd=/run/containerd/containerd.sock

$systemctl daemon-reload
$systemctl restart docker

<!--  docker 插件  -->
<plugin>
    <groupId>com.spotify</groupId>
    <artifactId>docker-maven-plugin</artifactId>
    <version>1.0.0</version>

    <!--  绑定 docker:build 到 maven 的 package 生命周期  -->
    <executions>
        <execution>
            <id>docker-build-image</id>
            <phase>package</phase>
            <goals>
                <goal>build</goal>
            </goals>
        </execution>
    </executions>

    <!--  插件的配置  -->
    <configuration>
        <!--  构建的镜像的名字 ：标签  -->
        <imageName>${project.artifactId}:${project.version}</imageName>
        <!--  存放dockerfile的路径  -->
        <dockerDirectory>${project.basedir}</dockerDirectory>
        <!--  docker Host 地址，用插件在 initialize 阶段从 application.yml 解析  -->
        <dockerHost>${docker.host}</dockerHost>
        <!--  SSL 认证证书地址，若开启 SSL 登录  -->
        <!--  <dockerCertPath></dockerCertPath>  -->
        <resources>
            <resource>
                <!--  使用什么资源来构建镜像（就是jar包），以及将镜像推送到容器的那个目录下  -->
                <targetPath>/</targetPath>
                <directory>${project.build.directory}</directory>
                <include>${project.build.finalName}.jar</include>
            </resource>
        </resources>
    </configuration>
</plugin>

FROM openjdk:8-jdk-alpine

MAINTAINER [author] [Howl@email.com]

ARG JAR_FILE=/target/*.jar

COPY ${JAR_FILE} app.jar

EXPOSE 8080

ENTRYPOINT ["java","-jar","/app.jar"]