move network-environment template into node role, required by kubelet

roles/kubernetes/node/tasks/main.yml

@@ -42,6 +42,9 @@
     src: manifests/kube-proxy.manifest.j2
     dest: "{{ kube_manifest_dir }}/kube-proxy.manifest"
 
+- name: Write network-environment
+  template: src=network-environment.j2 dest=/etc/network-environment mode=640
+
 - name: Enable kubelet
   service:
     name: kubelet