Docker + Intellij IDEA，提升 10 倍生產(chǎn)力！

Idea是Java開發(fā)利器，springboot是Java生態(tài)中最流行的微服務(wù)框架，docker是時(shí)下最火的容器技術(shù)，那么它們結(jié)合在一起會(huì)產(chǎn)生什么化學(xué)反應(yīng)呢？

一、開發(fā)前準(zhǔn)備

1. Docker的安裝可以參考https://docs.docker.com/install/

2. 配置docker遠(yuǎn)程連接端口

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

找到 「ExecStart」，在最后面添加 「-H tcp://0.0.0.0:2375」，如下圖所示

3. 重啟docker

?systemctl?daemon-reload
?systemctl?start?docker

復(fù)制代碼

4. 開放端口

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

5. Idea安裝插件,重啟

6. 連接遠(yuǎn)程docker

(1) 編輯配置

(2) 填遠(yuǎn)程docker地址

(3) 連接成功，會(huì)列出遠(yuǎn)程docker容器和鏡像

二、新建項(xiàng)目

1. 創(chuàng)建springboot項(xiàng)目

項(xiàng)目結(jié)構(gòu)圖

(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目錄下創(chuàng)建docker目錄，并創(chuàng)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目錄下創(chuàng)建application.properties文件

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

(4) 創(chuàng)建DockerApplication文件

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

(5) 創(chuàng)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

命令解釋

• 「Image tag :」 指定鏡像名稱和「tag」，鏡像名稱為 「docker-demo」，「tag」為「1.1」
• 「Bind ports :」 綁定宿主機(jī)端口到容器內(nèi)部端口。格式為[宿主機(jī)端口]:[容器內(nèi)部端口]
• 「Bind mounts :」 將宿主機(jī)目錄掛到到容器內(nèi)部目錄中。格式為[宿主機(jī)目錄]:[容器內(nèi)部目錄]。這個(gè)springboot項(xiàng)目會(huì)將日志打印在容器 「/home/developer/app/logs/」 目錄下，將宿主機(jī)目錄掛載到容器內(nèi)部目錄后，那么日志就會(huì)持久化容器外部的宿主機(jī)目錄中。

(7) Maven打包

(8) 運(yùn)行

先pull基礎(chǔ)鏡像，然后再打包鏡像，并將鏡像部署到遠(yuǎn)程docker運(yùn)行這里我們可以看到鏡像名稱為docker-demo:1.1，docker容器為docker-server

(9) 運(yùn)行成功

(10) 瀏覽器訪問

(11) 日志查看

自此通過idea 部署springboot項(xiàng)目到docker成功！難以想象，部署一個(gè)Javaweb項(xiàng)目竟然如此簡單方便！

作者：CodingTao
鏈接：https://juejin.cn/post/6844903865192562696