當(dāng)Docker遇到Intellij IDEA，再次解放了生產(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-reloadsystemctl start docker
4. 開放端口
firewall-cmd --zone=public --add-port=2375/tcp --permanent5. 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-alpineADD *.jar app.jarENTRYPOINT?["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.xmllogging.path=/home/developer/app/logs/server.port=8990
(4) 創(chuàng)建DockerApplication文件
public class DockerApplication {public static void main(String[] args) {SpringApplication.run(DockerApplication.class, args);}}
(5) 創(chuàng)建DockerController文件
public class DockerController {static Log log = LogFactory.getLog(DockerController.class);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！
轉(zhuǎn)自：陶章好
鏈接：https://juejin.im/post/5d026212f265da1b8608828b
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