build.gradle

buildscript {
    repositories {
      maven {
        url "https://plugins.gradle.org/m2/"
      }
      mavenCentral()
    }
    dependencies {
        classpath('org.springframework.boot:spring-boot-gradle-plugin:2.0.2.RELEASE')
// tag::build[]
        classpath('gradle.plugin.com.palantir.gradle.docker:gradle-docker:0.13.0')
// end::build[]
    }
}

apply plugin: 'java'
apply plugin: 'eclipse'
apply plugin: 'idea'
apply plugin: 'org.springframework.boot'
apply plugin: 'io.spring.dependency-management'
// tag::plugin[]
apply plugin: 'com.palantir.docker'
// end::plugin[]

// This is used as the docker image prefix (org)
group = 'springio'

bootJar {
    baseName = 'gs-spring-boot-docker'
    version =  '0.1.0'
}

// tag::task[]
docker {
    dependsOn build
    name "${project.group}/${bootJar.baseName}"
    files bootJar.archivePath
    buildArgs(['JAR_FILE': "${bootJar.archiveName}"])
}
// end::task[]

repositories {
    mavenCentral()
}

sourceCompatibility = 1.8
targetCompatibility = 1.8

dependencies {
    compile("org.springframework.boot:spring-boot-starter-web") 
    testCompile("org.springframework.boot:spring-boot-starter-test")
}