gradle - 创建容器时没有为属性 'imageId' 指定值

Question

我是 docker 的新手，在 gradle 中使用 bmuschko 插件来创建 docker 镜像、容器并运行它。只有 buildImage 任务似乎有效。创建容器时它说

No value has been specified for property 'imageId'

这是我的 gradle 文件片段。

dependencies {
        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")
        classpath 'com.bmuschko:gradle-docker-plugin:2.6.5'
    }
import com.bmuschko.gradle.docker.tasks.container.*
import com.bmuschko.gradle.docker.tasks.image.*

task copyJar(type: Copy) {
    dependsOn   'jar'
    from        'build/libs/rest-app-0.0.1-SNAPSHOT.jar'
    into        'build/docker'

    from        'src/main/resources/Dockerfile'
    into        'build/docker'
}

task buildImage(type: DockerBuildImage) {
    dependsOn 'copyJar'
    inputDir = file('build/docker');
    url = 'unix:///var/run/docker.sock'
    tag = 'rest-app/nci:0.1'
}

task createContainer(type: DockerCreateContainer) {
    dependsOn buildImage
    containerName = 'my-rest-app'
    targetImageId { buildImage.getImageId() }
    portBindings = ['8080:8080']
}

task startContainer(type: DockerStartContainer) {
    dependsOn createContainer
    targetContainerId { createContainer.getContainerId()}
}

build.dependsOn copyJar
build.dependsOn buildImage
build.dependsOn createContainer

这是堆栈跟踪片段。

..... rest-app:check :rest-app:createContainer ID !!!!!!!8cf8fc8d2af9 :rest-app:createContainer FAILED

FAILURE: Build failed with an exception.

What went wrong: A problem was found with the configuration of task ':rest-app:createContainer'.

No value has been specified for property 'imageId'. Try: Run with --info or --debug option to get more log output.

Exception is: org.gradle.api.tasks.TaskValidationException: A problem was found with the configuration of task ':rest-app:createContainer'. at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:55)

谁能告诉我如何解决这个问题？提前致谢。

Answer 1

找到问题了。似乎功能，即 targetImageId(...) 没有按预期工作。所以从 2.6.6 降级到 2.6.5 就像一个魅力。这是 bug created and answered在他们的官方 github 网站上。