How to loop over a series of tasks in ansible - ansible

Question

I am trying to unmount filesystems with the below playbook.
vars:
unmountlist:
- "/DATA1"
- "/DATA2"
tasks:
- name: unmount
mount:
path: "{{ item }}"
state: unmounted
with_items:
- "{{ unmountlist }}"
register: output
ignore_errors: true
- debug:
msg: "{{ output }}"
- name: YE unmount persistant
mount:
path: "{{ item }}"
state: absent
with_items:
- "{{ unmountlist }}"
- name: Lazy unmount
command: umount -l "{{ item }}"
when: output.changed == false
with_items: "{{ unmountlist }}"
The debug section looks like this:
ok: [host001] => {
"msg": "error is {'msg': u'All items completed', 'failed': True, 'changed': False, 'results': [{'_ansible_parsed': True, 'changed': False, '_ansible_no_log': False, 'item': u'/DATA1', '_ansible_item_result': True, u'failed': True, u'invocation': {u'module_args': {u'src': None, u'dump': None, u'boot': u'yes', u'fstab': None, u'passno': None, u'fstype': None, u'state': u'unmounted', u'path': u'/DATA1', u'opts': None}}, u'msg': u'Error unmounting /DATA1: umount.nfs: /DATA1: device is busy\\n'}, {'_ansible_parsed': True, 'changed': False, '_ansible_no_log': False, 'item': u'/DATA2', '_ansible_item_result': True, u'failed': True, u'invocation': {u'module_args': {u'src': None, u'dump': None, u'boot': u'yes', u'fstab': None, u'passno': None, u'fstype': None, u'state': u'unmounted', u'path': u'/DATA2', u'opts': None}}, u'msg': u'Error unmounting /DATA2: umount.nfs: /DATA2: device is busy\\n'}]}"
I am trying to achieve the below.
lazy unmount the only the filesystem that returns error "device is busy". I cant see how to read the variable from above debug that contains string "device is busy" and how to unmount only the filesystem that returns this error.

Answer 1

What you can do is put the tasks in a tasks file and loop over the tasks file using unmountlist.
This is how your tasks file (umounts_tasks.yml) will look like - tasks file
Then within your play you can use include_tasks to include the above tasks file and loop over it with the unmountlist. So your play will look like this - play.yml
Let me know if this worked. :)