Docker + Intellij IDEA，提升10倍生产力！

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

  
<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>4.0.0modelVersion>  
  
    <groupId>docker-demogroupId>  
    <artifactId>com.demoartifactId>  
    <version>1.0-SNAPSHOTversion>  
    <parent>  
        <groupId>org.springframework.bootgroupId>  
        <artifactId>spring-boot-starter-parentartifactId>  
        <version>2.0.2.RELEASEversion>  
        <relativePath />  
    parent>  
  
    <properties>  
         <project.build.sourceEncoding>UTF-8project.build.sourceEncoding>  
         <project.reporting.outputEncoding>UTF-8project.reporting.outputEncoding>  
         <docker.image.prefix>com.demodocker.image.prefix>  
         <java.version>1.8java.version>  
    properties>  
    <build>  
        <plugins>  
          <plugin>  
            <groupId>org.springframework.bootgroupId>  
            <artifactId>spring-boot-maven-pluginartifactId>  
          plugin>  
        <plugin>  
           <groupId>com.spotifygroupId>  
           <artifactId>docker-maven-pluginartifactId>  
           <version>1.0.0version>  
           <configuration>  
              <dockerDirectory>src/main/dockerdockerDirectory>  
              <resources>  
                <resource>  
                    <targetPath>/targetPath>  
                    <directory>${project.build.directory}directory>  
                    <include>${project.build.finalName}.jarinclude>  
                resource>  
              resources>  
           configuration>  
        plugin>  
        <plugin>  
            <artifactId>maven-antrun-pluginartifactId>  
            <executions>  
                 <execution>  
                     <phase>packagephase>  
                    <configuration>  
                        <tasks>  
                            <copy todir="src/main/docker" file="target/${project.artifactId}-${project.version}.${project.packaging}">copy>  
                        tasks>  
                     configuration>  
                    <goals>  
                        <goal>rungoal>  
                    goals>  
                    execution>  
            executions>  
        plugin>  
  
       plugins>  
    build>  
<dependencies>  
    <dependency>  
        <groupId>org.springframework.bootgroupId>  
        <artifactId>spring-boot-starter-webartifactId>  
    dependency>  
    <dependency>  
  <groupId>org.springframework.bootgroupId>  
        <artifactId>spring-boot-starter-testartifactId>  
        <scope>testscope>  
    dependency>  
    <dependency>  
        <groupId>log4jgroupId>  
        <artifactId>log4jartifactId>  
        <version>1.2.17version>  
    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

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

8、运行

先pull基础镜像，然后再打包镜像，并将镜像部署到远程docker运行

这里我们可以看到镜像名称为docker-demo:1.1，docker容器为docker-server

9、运行成功

10、浏览器访问

11、日志查看

自此，通过IDEA 部署springboot项目到docker成功！难以想象，部署一个Javaweb项目竟然如此简单方便！