- name: Check OS Version
  fail:
    msg: "{{ ansible_distribution  }} {{ ansible_distribution_version }} is not compatible with this role"
  when: ansible_distribution != 'Ubuntu' and ansible_distribution_release != 'trusty'

# ansible-playbook /tmp/project/deploy/main.yml
 [WARNING]: provided hosts list is empty, only localhost is available


PLAY [Deploy] ******************************************************************

TASK [setup] *******************************************************************
ok: [localhost]

TASK [install-docker : Check OS Version] ***************************************
skipping: [localhost]

# lsb_release -a:
root@vagrant-ubuntu-trusty-64:~# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 14.04.5 LTS
Release:        14.04
Codename:       trusty