IDEA远程一键部署SpringBoot到Docker

IDEA远程一键部署SpringBoot到Docker

一、Docker 环境安装

1、配置docker远程连接端口

1	vim /usr/lib/systemd/system/docker.service

找到 ExecStart，在最后面添加 -H tcp://0.0.0.0:2375，大约在14行

1	ExecStart=/usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock -H tcp://0.0.0.0:2375

2、重启docker

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systemctl daemon-reload
systemctl stop docker
systemctl start docker

3、若开启防火墙，请开放2357端口

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

二、IDEA 环境配置

1、idea安装插件

2、远程连接docker编辑配置

3、填远程docker地址

4、连接成功，会列出远程docker容器和镜像

三、SpringBoot项目配置

首先创建一个spring-boot-starter-web的基本项目，创建一个测试请求返回Hello Docker，并指定log日志地址，方便我们把日志输出到宿主机上。

1、POM依赖配置，主要添加docker的打包plugins

<?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 https://maven.apache.org/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>2.1.7.RELEASE</version>
        <relativePath/> <!-- lookup parent from repository -->
    </parent>
    <groupId>com.cnsyear</groupId>
    <artifactId>springboot-docker</artifactId>
    <version>0.0.1-SNAPSHOT</version>
    <name>springboot-docker</name>
    <description>Demo project for Spring Boot</description>

    <properties>
        <java.version>1.8</java.version>
    </properties>

    <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>

    <build>
        <plugins>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
            <!--docker-->
            <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>
</project>

2、测试请求

package com.cnsyear.springbootdocker;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.Date;

@RestController
public class HelloController {

    private final static Logger logger = LoggerFactory.getLogger(HelloController.class);

    @GetMapping("/")
    public String hello() {

        logger.info("Hello Docker! " + new Date());

        return "Hello Docker!";
    }
}

3、application.properties

server.port=9090

# 日志
logging.path=/home/developer/app/logs/

4、创建Dockerfile

在src/main目录下创建docker目录，并创建Dockerfile文件，该目录对应着pom文件中maven-antrun-plugin的配置。

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FROM openjdk:8-jdk-alpine
ADD *.jar app.jar
ENTRYPOINT ["java","-Djava.security.egd=file:/dev/./urandom","-jar","/app.jar"]

5、增加配置

命令解释：

Image tag : 指定镜像名称和tag，镜像名称为 springboot-docker，tag为1.0
Container name : 指定容器名称
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。

6、Docker启动

先执行mvn install，在点击docker启动

运行成功

参考文档：

https://mp.weixin.qq.com/s/-YuDKcJ8GNEkq2o4K0zjWw