gistfile1.txt

 [WARNING]: It is unnecessary to use '{{' in loops, leave variables in loop
expressions bare.


PLAY [localhost] ************************************************************** 

TASK: [debug things] ********************************************************** 
ok: [localhost] => {
    "things": [
        "Hello", 
        "{{ foob }}"
    ]
}

TASK: [debug var="{{ item }}"] ************************************************ 
skipping: [localhost]

TASK: [things with_items] ***************************************************** 
skipping: [localhost]

TASK: [things with_items2] **************************************************** 
fatal: [localhost] => {'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'foob' is undefined", 'failed': True}
fatal: [localhost] => {'msg': 'One or more items failed.', 'failed': True, 'changed': False, 'results': [{'msg': "AnsibleUndefinedVariable: One or more undefined variables: 'foob' is undefined", 'failed': True}]}

FATAL: all hosts have already failed -- aborting

PLAY RECAP ******************************************************************** 
           to retry, use: --limit @/home/bcoca/play.retry

localhost                  : ok=1    changed=0    unreachable=1    failed=0