一、开发前准备

1. Docker的安装可以参考https://docs.docker.com/install/

2. 配置docker远程连接端口

 vi /usr/lib/systemd/system/docker.service

找到 ExecStart，在最后面添加 -H tcp://0.0.0.0:2375，如下图所示

3. 重启docker

 systemctl daemon-reload
 systemctl start docker

4. 开放端口

firewall-cmd --zone=public --add-port=2375/tcp --permanent

5. Idea安装插件,重启

6. 连接远程docker

(1) 编辑配置

Java开发提升十倍生产力：Idea远程一键部署springboot到Docker

(2) 填远程docker地址

Java开发提升十倍生产力：Idea远程一键部署springboot到Docker

(3) 连接成功，会列出远程docker容器和镜像

Java开发提升十倍生产力：Idea远程一键部署springboot到Docker

二、新建项目

1. 创建springboot项目

项目结构图

Java开发提升十倍生产力：Idea远程一键部署springboot到Docker

(1) 配置pom文件

<?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>docker-demo</groupId>
 <artifactId>com.demo</artifactId>
 <version>1.0-SNAPSHOT</version>
 <parent>
 <groupId>org.springframework.boot</groupId>
 <artifactId>spring-boot-starter-parent</artifactId>
 <version>2.0.2.RELEASE</version>
 <relativePath />
 </parent>
 <properties>
 <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 <docker.image.prefix>com.demo</docker.image.prefix>
 <java.version>1.8</java.version>
 </properties>
 <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>
 <dockerDirectory>src/main/docker</dockerDirectory>
 <resources>
 <resource>
 <targetPath>/</targetPath>
 <directory>${project.build.directory}</directory>
 <include>${project.build.finalName}.jar</include>
 </resource>
 </resources>
 </configuration>
 </plugin>
 <plugin>
 <artifactId>maven-antrun-plugin</artifactId>
 <executions>
 <execution>
 <phase>package</phase>
 <configuration>
 <tasks>
 <copy todir="src/main/docker" file="target/${project.artifactId}-${project.version}.${project.packaging}"></copy>
 </tasks>
 </configuration>
 <goals>
 <goal>run</goal>
 </goals>
 </execution>
 </executions>
 </plugin>
 </plugins>
 </build>
<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>
 <dependency>
 <groupId>log4j</groupId>
 <artifactId>log4j</artifactId>
 <version>1.2.17</version>
 </dependency>
</dependencies>
</project>

(2) 在src/main目录下创建docker目录，并创建Dockerfile文件

FROM openjdk:8-jdk-alpine
ADD *.jar app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

(3) 在resource目录下创建application.properties文件

logging.config=classpath:logback.xml
logging.path=/home/developer/app/logs/
server.port=8990

(4) 创建DockerApplication文件

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

(5) 创建DockerController文件

@RestController
public class DockerController {
 static Log log = LogFactory.getLog(DockerController.class);
 @RequestMapping("/")
 public String index() {
 log.info("Hello Docker!");
 return "Hello Docker!";
 }
}

(6) 增加配置

Java开发提升十倍生产力：Idea远程一键部署springboot到Docker

命令解释

Image tag : 指定镜像名称和tag，镜像名称为 docker-demo，tag为1.1

Bind ports : 绑定宿主机端口到容器内部端口。格式为[宿主机端口]:[容器内部端口]

Bind mounts : 将宿主机目录挂到到容器内部目录中。格式为[宿主机目录]:[容器内部目录]。这个springboot项目会将日志打印在容器 /home/developer/app/logs/ 目录下，将宿主机目录挂载到容器内部目录后，那么日志就会持久化容器外部的宿主机目录中。

(7) Maven打包