1. 项目结构

 

2. 代码说明

a. Dockerfile docker 构建的FROM openjdk:8-jre-alpineWORKDIR /appdemo/COPY  build/distributions/ratpackdemo.zip /appdemoRUN  unzip /appdemo/ratpackdemo.zipEXPOSE 5050ENTRYPOINT [ "./ratpackdemo/bin/ratpackdemo"]b. build.gradlebuildscript {  repositories {    jcenter()  }  dependencies {    classpath "io.ratpack:ratpack-gradle:1.5.1"    classpath('se.transmode.gradle:gradle-docker:1.2')  }}project.group="com.dalong"version="1.0-SNAPSHOT"apply plugin: "io.ratpack.ratpack-java"apply plugin: "idea"apply plugin: "docker"apply plugin: "maven"repositories {  jcenter()}uploadArchives {    repositories.mavenDeployer {        repository(url: "http://nexushost:8081/nexus/content/repositories/snapshots") {            authentication(userName: "username", password: "userpassword")            project.group="com.dalong"            version="1.0-SNAPSHOT"            pom.groupId = "com.dalong"            pom.artifactId = "mydemo-ratpack"        }    }}distZip {    archiveName = 'ratpackdemo-1-1.zip'}dependencies {  runtime "org.slf4j:slf4j-simple:1.7.25"}task buildDocker(type:Docker,dependsOn: build){  push = false	applicationName = distZip.archiveName	project.group="dockerimagehost/mydemo"	dockerfile = file("${projectDir}/src/main/docker/Dockerfile")  doFirst {		copy {			from distZip			into stageDir		} }}mainClassName = "dalong.Application"c. 项目代码省略比较简单，可以参考下面的参考地址https://github.com/rongfengliang/ratpackdemo

3. 构建

./gradlew buildDocker  uploadArchives

4. 可能碰到的问题

注意以下代码uploadArchives {    repositories.mavenDeployer {        repository(url: "http://nexushost:8081/nexus/content/repositories/snapshots") {            authentication(userName: "username", password: "userpassword")            project.group="com.dalong"            version="1.0-SNAPSHOT"            pom.groupId = "com.dalong"            pom.artifactId = "mydemo-ratpack"        }    }}中version 对于对应maven仓库应该包含对应的 release 后者  SNAPSHOT 不然会存在发布提示400 的错误

5. 参考资料

https://github.com/rongfengliang/ratpackdemohttps://github.com/Transmode/gradle-docker