Use simpler file structure

roles/common/tasks/network.yml

@@ -0,0 +1,27 @@
+- name: check old network configuration
+  stat: path=/etc/network/interfaces
+  register: old_config
+
+- name: move old network configuration
+  command: mv /etc/network/interfaces /etc/network/interfaces.save
+  when: old_config.stat.exists
+
+- name: copy network configuration
+  template:
+    src: "network.j2"
+    dest: "/etc/systemd/network/50-default.network"
+    owner: root
+    group: root
+    mode: "0644"
+  notify: restart systemd-networkd
+
+- name: copy dns configuration
+  file:
+    src: "/run/systemd/resolve/resolv.conf"
+    dest: "/etc/resolv.conf"
+    owner: root
+    group: root
+    state: link
+    force: yes
+    mode: "0644"
+  notify: restart systemd-resolved