Using when: x in y if y is a list of dicts

[Rob White]

Hi guys,

I wonder if anyone knows if it's possible do use the 'in' clause with a list of dicts.

I have a list that looks like this:

[{u'state': None, u'id': u'i-233b31yy'}, {u'state': None, u'id': u'i-2a2281xx'}]

I want to add_host if an id is not in the list, something like:

vars:
  mylist:
    - {u'state': None, u'id': u'i-233b31yy'}
    - {u'state': None, u'id': u'i-2a2281xx'}
tasks:
  local_action:
    module: add_host
    name: "{{ ansible_ec2_local_ipv4 }}"
    group: not_in_elb
  when: ansible_ec2_instance_id not in mylist

The above fails because the list items are dicts.  How can I just look at the id value of each dict in the list?