---
- name: Checking that libvirt is not running
  stat: path=/var/run/libvirt/libvirt-sock
  register: result
  failed_when: result.stat.exists
  when: inventory_hostname in groups['compute']

- name: Checking Docker version
  command: docker version
  register: result
  failed_when: result | failed
               or (result.stdout | from_yaml).Server.Version | regex_replace('(\\d+\\.\\d+\\.\\d+).*', '\\1') | version_compare(docker_version_min, '<')
               or (result.stdout | from_yaml).Server.Version | regex_replace('(\\d+\\.\\d+\\.\\d+).*', '\\1') | version_compare(docker_version_max, '>')