import java.util.HashMap;
import java.util.Locale;
import java.util.Map;
import java.util.Optional;

public class TestFixtureExtension {

    private final Project project;
    final NamedDomainObjectContainer<Project> fixtures;
    final Map<String, String> serviceToProjectUseMap = new HashMap<>();

    public TestFixtureExtension(Project project) {
        this.project = project;
        this.fixtures = project.container(Project.class);
    }

        project.getRootProject().getPluginManager().apply(DockerSupportPlugin.class);

        TaskContainer tasks = project.getTasks();
        TestFixtureExtension extension = project.getExtensions().create("testFixtures", TestFixtureExtension.class, project);
        Provider<DockerComposeThrottle> dockerComposeThrottle = project.getGradle()
            .getSharedServices()