使用gradle-docker插件构建项目镜像

Author: liaozihong

SpringBoot-Builder-Docker/.gitignore

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+.gradle
+/build/
+!gradle/wrapper/gradle-wrapper.jar
+
+### STS ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### IntelliJ IDEA ###
+.idea
+*.iws
+*.iml
+*.ipr
+/out/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/

SpringBoot-Builder-Docker/Dockerfile

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+FROM openjdk:8
+LABEL maintainer="[email protected]"
+WORKDIR /
+ARG JAR_FILE
+ADD ${JAR_FILE} app.jar
+EXPOSE 8080
+ENTRYPOINT ["java","-jar","app.jar"]

SpringBoot-Builder-Docker/README.md

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+## Gradle 构建 SpringBoot 并打包镜像Demo
+
+使用 gradle-docker 插件 
+
+构建子模块镜像，在子模块的build.gralde配置插件  
+
+具体参照，我写的一篇文章https://blog.csdn.net/qq_39211866/article/details/81123694  
+
+配置完了，在主目录下构建，命令如下
+```text
+# 构建项目，忽略测试用例
+gradle clean build -x test 
+# 构建镜像
+gradle SpringBoot-Builder-Docker:docker
+
+```
+
+![](https://ws1.sinaimg.cn/large/006mOQRagy1fymsk4xqzxj31gm04m755.jpg)  
+
+构建成功：  
+![](https://ws1.sinaimg.cn/large/006mOQRagy1fymsp7smuaj317q03sgmk.jpg)  
+
+启动镜像：  
+```text
+docker run -p 8080:8080 -d docker/springboot-docker:1.0.0
+```
+-p 挂载宿主机端口；  
+-d 后台启动容器。  
+
+
+访问https://localhost:8080/,可以看到成功调用接口。    
+![](https://ws1.sinaimg.cn/large/006mOQRagy1fymsra1jb6j30nu0aqq3o.jpg)  

SpringBoot-Builder-Docker/build.gradle

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+buildscript {
+    repositories {
+        maven { url "https://plugins.gradle.org/m2/" }
+        maven { url "http://maven.aliyun.com/nexus/content/groups/public/" }
+        mavenCentral()
+    }
+    dependencies {
+        classpath("org.springframework.boot:spring-boot-gradle-plugin:2.0.4.RELEASE")
+        //引入gradle-docker
+        classpath('gradle.plugin.com.palantir.gradle.docker:gradle-docker:0.19.2')
+    }
+}
+//引入构建docker插件
+apply plugin: 'com.palantir.docker'
+apply plugin: 'org.springframework.boot'
+apply plugin: 'application'
+
+group = 'docker'
+version = project.findProperty('projVersion') ?: '1.0.0'
+mainClassName = 'com.dashuai.learning.docker.DockerApplication'
+
+tasks.withType(JavaCompile) {
+    options.encoding = 'UTF-8'
+}
+dependencies {
+    compile group: 'org.springframework.boot', name: 'spring-boot-starter-web', version: '2.0.4.RELEASE'
+    testCompile group: 'org.springframework.boot', name: 'spring-boot-starter-test', version: '2.0.4.RELEASE'
+}
+//具体配置生成镜像
+docker {
+    dockerfile file('Dockerfile')
+    name "${project.group}/springboot-docker:${project.version}"
+    files jar.archivePath
+    buildArgs(['JAR_FILE': "${jar.archiveName}"])
+}

SpringBoot-Builder-Docker/src/main/java/com/dashuai/learning/docker/DockerApplication.java

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+package com.dashuai.learning.docker;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+
+import java.util.Date;
+
+@SpringBootApplication
+@RestController
+public class DockerApplication {
+
+    @RequestMapping("/")
+    public String getDate(){
+        return new Date().toString();
+    }
+
+    public static void main(String[] args) {
+        SpringApplication.run(DockerApplication.class, args);
+    }
+
+}
+