public HostProvisioner getProvisioner() { return provisioner; }
@Test
    void testProvisionerIsSet() {
        DeployState.Builder builder = new DeployState.Builder();
        HostProvisioner provisioner = new InMemoryProvisioner(true, false, "foo.yahoo.com");
        builder.modelHostProvisioner(provisioner);
        DeployState state = builder.build();
        assertEquals(provisioner, state.getProvisioner());
    }