Add the rest of the common role

roles/common/defaults/main.yaml

@@ -0,0 +1,8 @@
+---
+cron_service_name: cron
+
+resolv_nameserver: []
+resolv_options:
+ - edns0
+
+timezone: UTC

roles/common/handlers/main.yaml

@@ -0,0 +1,12 @@
+---
+- name: "restart resolv"
+  service:
+    name: "{{ resolv_service_name }}"
+    state: restarted
+  when: resolv_service_name is defined
+
+- name: restart cron
+  service:
+    name: "{{ cron_service_name }}"
+    state: restarted
+  when: cron_service_name is defined

roles/common/tasks/main.yaml

@@ -1,6 +1,24 @@
 ---
+- name: gather OS specific variables
+  include_vars: "{{ item }} "
+  with_first_found:
+    - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yaml"
+    - "{{ ansible_distribution }}.yaml"
+    - "{{ ansible_os_family }}.yaml"
+
 - name: install system utilities
   package:
     name: "{{ item }}"
     state: present
   with_items: "{{ sys_utils }}"
+
+- name: configure resolv.conf
+  template:
+    src: resolv.conf.j2
+    dest: /etc/resolv.conf
+  notify: "restart resolv"
+
+- name: configure system timezone
+  timezone:
+    name: "{{ timezone }}"
+  notify: restart cron

roles/common/templates/resolv.conf.j2

@@ -0,0 +1,8 @@
+# {{ ansible_managed }}
+
+{% for ns in resolv_nameserver %}
+nameserver {{ ns }}
+{% endfor %}
+{% if resolv_options is defined %}
+options {{ resolv_options | join(' ') }}
+{% endif %}

roles/common/vars/Ubuntu-18.yaml

@@ -0,0 +1,2 @@
+---
+resolv_service_name: systemd-resolved.service