Docker与IDEA整合，提升生产力_吴师兄学算法-五分钟学算法

IDEA是Java开发利器，springboot是Java生态中最流行的微服务框架，docker是时下最火的容器技术，那么它们结合在一起会产生什么化学反应呢？

一、开发前准备

1.Docker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

2、填远程docker地址

3、连接成功，会列出远程docker容器和镜像

二、新建项目

1.创建springboot项目

项目结构图

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