Description of problem:
Run docker upgrade failed due to openshift_is_atomic is undefined.
PLAY [Check for appropriate Docker versions] ********************************************************************************************************************************

TASK [Gathering Facts] ******************************************************************************************************************************************************
ok: [x.x.x.x]
ok: [x.x.x.x]

TASK [fail] *****************************************************************************************************************************************************************
fatal: [x.x.x.x]: FAILED! => {"failed": true, "msg": "The conditional check 'openshift_is_atomic | bool' failed. The error was: error while evaluating conditional (openshift_is_atomic | bool): 'openshift_is_atomic' is undefined\n\nThe error appears to have been in '/usr/share/ansible/openshift-ansible/playbooks/common/openshift-cluster/upgrades/docker/docker_upgrade.yml': line 15, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n  tasks:\n  - fail:\n    ^ here\n"}

Version-Release number of the following components:
openshift-ansible-3.9.0-0.38.0.git.0.57e1184.el7.noarch

How reproducible:
always

Steps to Reproduce:
1.Run docker upgrade playbook against ocp3.9
# ansible-playbook -i hosts /usr/share/ansible/openshift-ansible/playbooks/byo/openshift-cluster/upgrades/docker/upgrade.yml
2.
3.

Actual results:
Docker upgrade failed.

Expected results:
Docker should be upgraded to latest version.

Additional info:
Please attach logs from ansible-playbook with the -vvv flag