java通过Idea远程一键部署springboot到Docker详解

发布时间：2020-10-19 08:40:18 来源：脚本之家阅读：170 作者：陶章好栏目：编程语言

一、开发前准备

1. Docker的安装可以参考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

java通过Idea远程一键部署springboot到Docker详解

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

java通过Idea远程一键部署springboot到Docker详解

6. 连接远程docker

(1) 编辑配置

java通过Idea远程一键部署springboot到Docker详解

(2) 填远程docker地址

java通过Idea远程一键部署springboot到Docker详解

(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

java通过Idea远程一键部署springboot到Docker详解

(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

java通过Idea远程一键部署springboot到Docker详解

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

java通过Idea远程一键部署springboot到Docker详解