Add docker installation role

roles/docker/tasks/main.yml

@@ -0,0 +1,11 @@
+---
+# Bring docker on the system and up to date
+
+- name: "Select tasks for {{ ansible_distribution }} {{ ansible_distribution_major_version }}"
+  include_tasks: "{{ distribution }}"
+  with_first_found:
+    - "{{ ansible_distribution }}-{{ ansible_distribution_major_version }}.yml"
+    - "{{ ansible_distribution }}.yml"
+    - "{{ ansible_os_family }}.yml"
+  loop_control:
+    loop_var: distribution