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java通過(guò)Idea遠(yuǎn)程一鍵部署springboot到Docker詳解

更新時(shí)間：2019年06月14日 09:21:05 作者：陶章好

這篇文章主要介紹了java通過(guò)Idea遠(yuǎn)程一鍵部署springboot到Docker詳解，Idea是Java開(kāi)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？的相關(guān)資料

一、開(kāi)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

4. 開(kāi)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

<?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](méi):[容器內(nèi)部目錄](méi)。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