doing less.

To wire this registered cluster into a `TestClusterAware` task (e.g. `RestIntegTest`) you can resolve the actual cluster from the provider instance:

    tasks.register('someClusterTest', RestIntegTestTask) {
        useCluster someClusterProvider
        nonInputProperties.systemProperty 'tests.leader_host', "${-> someClusterProvider.get().getAllHttpSocketURI().get(0)}"
    }