public void createAndActivateHosts(int count, NodeResources resources) {
        tester.makeReadyNodes(count, resources, NodeType.host, 8);
        tester.activateTenantHosts();
    }
Create hostCount hosts, one app with containerCount containers, and one app with contentCount content nodes.
node-repository/src/test/java/com/yahoo/vespa/hosted/provision/maintenance/NodeFailTester.java