Add pseudo network plugin called "cloud" to use cloud provider for network

Allow to let the cloud provider configure proper routing for nodes.

roles/network_plugin/cloud/tasks/main.yml

@@ -0,0 +1,9 @@
+---
+
+- name: Cloud | Copy cni plugins from hyperkube
+  command: "/usr/bin/docker run --rm -v /opt/cni/bin:/cnibindir {{ hyperkube_image_repo }}:{{ hyperkube_image_tag }} /bin/cp -r /opt/cni/bin/. /cnibindir/"
+  register: cni_task_result
+  until: cni_task_result.rc == 0
+  retries: 4
+  delay: "{{ retry_stagger | random + 3 }}"
+  changed_when: false

roles/network_plugin/meta/main.yml

@@ -12,3 +12,5 @@ dependencies:
  - role: network_plugin/canal
    when: kube_network_plugin == 'canal'
    tags: canal
+ - role: network_plugin/cloud
+   when: kube_network_plugin == 'cloud'