);

            Map<ElasticsearchDistributionType, TaskProvider<?>> vmLifecyleTasks = lifecycleTasks(vmProject, "distroTest");
            Map<String, TaskProvider<?>> vmVersionTasks = versionTasks(vmProject, "distroUpgradeTest");
            TaskProvider<Task> distroTest = vmProject.getTasks().register("distroTest");

            // windows boxes get windows distributions, and linux boxes get linux distributions

would run:
+
-------------------------------------------------------------------------------------------------
./gradlew :qa:os:centos-7:distroTest.default-rpm :qa:os:centos-7:distroTest.default-linux-archive
-------------------------------------------------------------------------------------------------

  // with the java-gradle-plugin
  automatedPublishing = false
  plugins {
    build {
      id = 'elasticsearch.build'
      implementationClass = 'org.elasticsearch.gradle.internal.BuildPlugin'
    }
    distroTest {
      id = 'elasticsearch.distro-test'
      implementationClass = 'org.elasticsearch.gradle.internal.test.DistroTestPlugin'
    }
    dockerSupport {
      id = 'elasticsearch.docker-support'