private Set<Integer> portBindingOverride(DeployState deployState, ConfigModelContext context) {
        return isHostedTenantApplication(context)
                ? getDataplanePorts(deployState)
                : Set.<Integer>of();
    }
Allocate a container cluster without a nodes tag
config-model/src/main/java/com/yahoo/vespa/model/container/xml/ContainerModelBuilder.java