Disable swap in vagrant vms

roles/kubernetes/preinstall/tasks/verify-settings.yml

@@ -71,3 +71,9 @@
   command: ping -c1 {{ access_ip }}
   when: access_ip is defined
   ignore_errors: "{{ ignore_assert_errors }}"
+
+- name: Stop if swap enabled
+  assert:
+    that: ansible_swaptotal_mb == 0
+  when: kubelet_fail_swap_on|default(true)
+  ignore_errors: "{{ ignore_assert_errors }}"