Openstack 13 deployment fails with: ERROR! 'delegate_to' is not a valid attribute for a Task

Issue

• Openstack deployment that includes ceph fails with the following error:

    Stderr: u"ERROR! 'delegate_to' is not a valid attribute for a TaskInclude\n\nThe error appears to be in '/usr/share/ceph-ansible/roles/ceph-mon/tasks/main.yml': line 20, column 3, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n\n- name: include secure_cluster.yml\n  ^ here\n"

• The following error is found in the mistral log: /var/log/mistral/ceph-install-workflow.log

2019-10-29 12:37:48,296 p=26095 u=mistral |  ERROR! 'delegate_to' is not a valid attribute for a TaskInclude

The error appears to be in '/usr/share/ceph-ansible/roles/ceph-mon/tasks/main.yml': line 20, column 3, but may
be elsewhere in the file depending on the exact syntax problem.

The offending line appears to be:


- name: include secure_cluster.yml
  ^ here