gradle multiproject && docker build

备注：

环境准备： docker ， gradle(使用wrapper,或者全局安装),测试环境使用mac

1. gradle 安装

brew install gradle

2. docker

// 安装

yum install -y yum-utils

yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo

yum install docker-ce

// 加速

curl -sSL https://get.daocloud.io/daotools/set_mirror.sh | sh -s http://099430a4.m.daocloud.io

3. gradle 项目结构

gradle wrapper

├── README.md

├── build.gradle

├── gradle

│   └── wrapper

│       ├── gradle-wrapper.jar

│       └── gradle-wrapper.properties

├── gradlew

├── gradlew.bat

├── lib

│   └── commons-codec.jar

├── moviesservice

│   ├── build.gradle

│   └── src

│       └── main

│           ├── java

│           │   └── com

│           │       └── dalong

│           │           └── moviesservice

│           │               └── Movies.java

│           └── resources

├── settings.gradle

├── src

│   ├── main

│   │   ├── docker

│   │   │   └── Dockerfile

│   │   ├── java

│   │   │   └── com

│   │   │       └── dalong

│   │   │           └── Application.java

│   │   └── resources

│   └── test

│       ├── java

│       └── resources

└── userservice

    ├── build.gradle

    └── src

        └── main

            ├── java

            │   └── com

            │       └── dalong

            │           └── userservice

            │               └── User.java

            └── resources

4. 代码说明

多项目主要是 settings.gradle,具体代码如下：

1. settings.gradle

rootProject.name = 'parent'

include 'moviesservice'

include 'userservice'

2. build.gradle

group 'com.gradleapp'

version '1.0-SNAPSHOT'

buildscript {

    repositories {

        maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}

    }

    dependencies {

        classpath('se.transmode.gradle:gradle-docker:1.2')

    }

}

apply plugin: 'java'

apply plugin: 'application'

apply plugin: "docker"

sourceCompatibility = 1.8

mainClassName = 'com.dalong.Application'

repositories {

    mavenCentral()

    maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}

}

// 依赖引用

dependencies {

    testCompile group: 'junit', name: 'junit', version: '4.12'

    compile project(":userservice")

    compile project(":moviesservice")

    compile files("lib/commons-codec.jar")

}

// docker build task

task buildDocker(type:Docker,dependsOn:build){

    push = false

    applicationName ="gradlemultiproject"

    project.group="dockerimagehost/mydemo"

    dockerfile = file("${projectDir}/src/main/docker/Dockerfile")

    doFirst {

        copy {

            from distZip

            into stageDir

        }

    }

}

3. 子项目gradle 配置，比较简单

group 'com.gradleapp'

version '1.0-SNAPSHOT'

apply plugin: 'java'

sourceCompatibility = 1.8

repositories {

}

dependencies {

    testCompile group: 'junit', name: 'junit', version: '4.12'

}
4. dockerfile

FROM openjdk:8-jre-alpine

WORKDIR /appdemo/

COPY parent-1.0-SNAPSHOT.zip /appdemo

RUN unzip /appdemo/parent-1.0-SNAPSHOT.zip && rm -rf parent-1.0-SNAPSHOT.zip

ENTRYPOINT [ "./parent-1.0-SNAPSHOT/bin/parent"]

5. 构建

gradle buildDocker   or  ./gradlew buildDocker

> Task :buildDocker

Sending build context to Docker daemon  224.8kB

Step 1/5 : FROM openjdk:8-jre-alpine

 ---> b1bd879ca9b3

Step 2/5 : WORKDIR /appdemo/

 ---> Using cache

 ---> 53e534f7f64f

Step 3/5 : COPY  parent-1.0-SNAPSHOT.zip /appdemo

 ---> f07ca2806459

Step 4/5 : RUN  unzip /appdemo/parent-1.0-SNAPSHOT.zip && rm -rf parent-1.0-SNAPSHOT.zip

 ---> Running in f42179c4ac39

Archive:  /appdemo/parent-1.0-SNAPSHOT.zip

   creating: parent-1.0-SNAPSHOT/

   creating: parent-1.0-SNAPSHOT/lib/

  inflating: parent-1.0-SNAPSHOT/lib/parent-1.0-SNAPSHOT.jar

  inflating: parent-1.0-SNAPSHOT/lib/commons-codec.jar

  inflating: parent-1.0-SNAPSHOT/lib/userservice-1.0-SNAPSHOT.jar

  inflating: parent-1.0-SNAPSHOT/lib/moviesservice-1.0-SNAPSHOT.jar

   creating: parent-1.0-SNAPSHOT/bin/

  inflating: parent-1.0-SNAPSHOT/bin/parent.bat

  inflating: parent-1.0-SNAPSHOT/bin/parent

Removing intermediate container f42179c4ac39

 ---> e322da1a4e8a

Step 5/5 : ENTRYPOINT [ "./parent-1.0-SNAPSHOT/bin/parent"]

 ---> Running in 8c279ec90d6f

Removing intermediate container 8c279ec90d6f

 ---> 39e705358ef1

Successfully built 39e705358ef1

Successfully tagged dockerimagehost/mydemo/gradlemultiproject:1.0-SNAPSHOT

6. 参考资料

https://docs.gradle.org/4.5/userguide/intro_multi_project_builds.html

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

https://github.com/rongfengliang/gradlemultiproject.git

snapshot

gradle multiproject && docker build