gb Docker 使用 - 提供容器服务

buildscript {
    ext {
        //...
        dockerBuildDir = mkdir("${buildDir}/docker")                 (1)
    }
    //...
    repositories {
        maven { url "https://plugins.gradle.org/m2/" }               (2)
        jcenter()
        mavenCentral()
    }
    dependencies {
        //...
        classpath('gradle.plugin.com.palantir.gradle.docker:gradle-docker:0.22.1')  (3)
    }
}
//...
bootJar {
    baseName = 'xxx-project'                          (4)
    version = '0.0.1-SNAPSHOT'
}
group = 'gb-project'                                 (5)

//...
apply plugin: 'com.palantir.docker'                   (6)
...
task prepareDocker(type: Copy, dependsOn: assemble) {                  (7)
    description = 'Copy files from src/main/docker to Docker temporal build directory'
    group = 'Docker'
    from 'src/main/docker'
    into dockerBuildDir
}

task unpack(type: Copy, dependsOn: prepareDocker) {               (8)
    dependsOn bootJar
    from(zipTree(tasks.bootJar.outputs.files.singleFile))
    into("build/dependency")
}
docker {                                                     (9)
    name "${project.group}/${bootJar.baseName}"
    copySpec.from(tasks.unpack.outputs).into("dependency")
    buildArgs(['DEPENDENCY': "dependency"])
}