IDEA远程一键部署SpringBoot到Docker-编程知识

IDEA远程一键部署SpringBoot到Docker

IDEA是Java开发利器，Spring Boot是Java生态中最流行的微服务框架，docker是时下最火的容器技术，那么它们结合在一起会产生什么化学反应呢？

一、开发前准备

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

重启docker

systemctl daemon-reloadsystemctl start docker

开放端口

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

Idea安装插件，重启

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

创建Spring Boot项目

项目结构图

1、配置pom文件

<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.groupId}"/></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>

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.jarENTRYPOINT ["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