---
- hosts: dockernodes
  remote_user: xxxxxxx
  become: yes
  become_method: sudo
  vars:
   ansible_become_pass: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  tasks:
   - name: Clean slate - uninstall old versions of Docker if any
     apt:
      name: "{{ item }}"
      state: absent
      with_items:
        - docker
        - docker-engine
        - docker.io
        - docker-compose
   - name: Update Repository Cache
     apt:
      update_cache: yes
   - name: Upgrade Ubuntu Distrbution (apt-get dist-upgrade)
     apt:
      upgrade: dist
   - name: Install Docker Dependancies
     apt:
      name: "{{ item }}"
      state: present
     with_items:
      - apt-transport-https
      - ca-certificates
      - curl
      - software-properties-common



TASK [Uninstall old versions of Docker] *********************************************************************************************************************************************************
fatal: [192.168.12.231]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'item' is undefined\n\nThe error appears to have been in '/home/xxxx/playbooks/dockernodes/installdocker.yml': line 9, column 6, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n   - name: Uninstall old versions of Docker\n     ^ here\n"}
fatal: [192.168.12.232]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'item' is undefined\n\nThe error appears to have been in '/home/xxxx/playbooks/dockernodes/installdocker.yml': line 9, column 6, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n   - name: Uninstall old versions of Docker\n     ^ here\n"}
fatal: [192.168.12.233]: FAILED! => {"failed": true, "msg": "the field 'args' has an invalid value, which appears to include a variable that is undefined. The error was: 'item' is undefined\n\nThe error appears to have been in '/home/xxxxx/playbooks/dockernodes/installdocker.yml': line 9, column 6, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n   - name: Uninstall old versions of Docker\n     ^ here\n"}
        to retry, use: --limit @/home/xxxx/playbooks/dockernodes/installdocker.retry