Add k8s-ha-calico-flannel-virtlet model.

Change-Id: I75c463d202600547464738dca43aa90a8afaa326
diff --git a/classes/cluster/k8s-ha-calico-flannel-virtlet/init.yml b/classes/cluster/k8s-ha-calico-flannel-virtlet/init.yml
new file mode 100644
index 0000000..bbe3cbe
--- /dev/null
+++ b/classes/cluster/k8s-ha-calico-flannel-virtlet/init.yml
@@ -0,0 +1,5 @@
+classes:
+- system.linux.network.dynamic_hosts
+- cluster.k8s-ha-calico-flannel-virtlet.kubernetes
+- cluster.k8s-ha-calico-flannel-virtlet.infra
+- cluster.overrides