public List<Node> makeReadyChildren(int count, int startIndex, NodeResources resources, String parentHostname,
                                        Function<Integer, String> nodeNamer) {
        return makeReadyChildren(count, startIndex, resources, NodeType.tenant, parentHostname, nodeNamer);
    }
Create one or more child nodes on given parent host
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/provisioning/ProvisioningTester.java