@Override
    public void getConfig(IlscriptsConfig.Builder builder) {
        for (SearchCluster searchCluster : Content.getSearchClusters(getRoot().configModelRepo())) {
            searchCluster.getConfig(builder);
        }
    }
Implement in subclasses to avoid installing unnecessary bundles, see {@link PlatformBundles}
Should only return constant values, as there is no guarantee for when this is called.
config-model/src/main/java/com/yahoo/vespa/model/container/ContainerCluster.java