public static Collection<ContainerCluster<?>> containerClusters(ConfigModelRepo models) {
        List<ContainerCluster<?>> containerClusters = new ArrayList<>();

        for (ContainerModel model: models.getModels(ContainerModel.class))
            containerClusters.add(model.getCluster());

        return containerClusters;
    }
A model of a container cluster.

TODO: Add type parameter for CLUSTER instead of using wildcard '? extends Container'

@author Tony Vaagenes
config-model/src/main/java/com/yahoo/vespa/model/container/ContainerModel.java