Therefore we register test cluster by using the following syntax:

    def someClusterProvider = testClusters.register('someCluster') { ... }

This registers a potential testCluster named `somecluster` and provides a provider instance, but doesn't create it yet nor configures it. This makes the gradle configuration phase more efficient by 
doing less.

            apply plugin: 'elasticsearch.yaml-rest-compat-test'

            // avoids a dependency problem in this test, the distribution in use here is inconsequential to the test
            import org.elasticsearch.gradle.testclusters.TestDistribution;

            dependencies {
               yamlRestTestImplementation "junit:junit:4.12"
            }

            // can't actually spin up test cluster from this test

import org.elasticsearch.gradle.internal.test.rest.RestTestUtil;
import org.elasticsearch.gradle.internal.test.rest.InternalYamlRestTestPlugin;
import org.elasticsearch.gradle.testclusters.TestClustersPlugin;
import org.elasticsearch.gradle.util.GradleUtils;
import org.gradle.api.Plugin;
import org.gradle.api.Project;
import org.gradle.api.Task;
import org.gradle.api.artifacts.Configuration;

                testTask.dependsOn(bundle);
                if (GradleUtils.isModuleProject(project.getPath())) {
                    testTask.getClusters().forEach(c -> c.module(bundle.flatMap(AbstractArchiveTask::getArchiveFile)));
                } else {
                    testTask.getClusters().forEach(c -> c.plugin(bundle.flatMap(AbstractArchiveTask::getArchiveFile)));
                }
            });
        });
    }

    /**