Skip final checks when no-flannel option is used.

Fixes #16

This is because without a CNI, nodes will never be ready and the task
will fail. You need to deploy your choice of CNI manually (such as
Calico) then check the state of the cluster using `kubectl get nodes`.

molecule/default/playbook-no-deploy.yml

@@ -7,6 +7,7 @@
     k3s_no_coredns: true
     k3s_no_traefik: true
     k3s_no_servicelb: true
+    k3s_no_flannel: true
     k3s_no_local_storage: true
     k3s_default_local_storage_path: false
     k3s_no_metrics_server: true

tasks/build/configure-k3s-cluster.yml

@@ -74,4 +74,4 @@
          and kubectl_get_nodes_result.stdout.find("NotReady") == -1
   retries: 30
   delay: 20
-  when: k3s_control_node
+  when: k3s_control_node and not k3s_no_flannel

templates/k3s.service.j2

@@ -28,10 +28,10 @@ ExecStart={{ k3s_install_dir }}/k3s
         --disable-network-policy
     {% endif %}
     {% if k3s_no_flannel %}
-        {% if k3s_release_version is version_compare('1.0.0', '<')  %}
-            --no-flannel
-        {% else %}
+        {% if (k3s_release_version | replace('v', '')) is version_compare('1.0.0', '>=')  %}
             --flannel-backend none
+        {% else %}
+            --no-flannel
         {% endif %}
     {% endif %}
     {% if k3s_cluster_cidr is defined %}