create network role and include it into base (only openbsd does something)

roles/network/tasks/main.yml

@@ -0,0 +1,12 @@
+---
+- name: include os spcific tasks
+  include_tasks: "{{ ansible_os_family }}.yml"
+
+- name: create resolv.conf
+  template:
+    src: resolv.conf.j2
+    dest: /etc/resolv.conf
+    mode: 0644
+    owner: root
+    group: "{{ ansible_wheel }}"
+  when: network_dns_servers is defined