ansible - jsonifying yaml

output

$ ansible-playbook play.yml

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

TASK [debug] *******************************************************************************************************************************************************************************************************************************************************************
ok: [localhost] => {
    "msg": "[{\"foo\": \"bar\", \"abc\": \"xyz\"}, {\"foo\": 123, \"abc\": 456}]"
}

TASK [command] *****************************************************************************************************************************************************************************************************************************************************************
changed: [localhost]
TASK [debug] *******************************************************************************************************************************************************************************************************************************************************************
ok: [localhost] => {
    "result": {
        "changed": true,
        "cmd": [
            "echo",
            "\"[{\"foo\": \"bar\", \"abc\": \"xyz\"}, {\"foo\": 123, \"abc\": 456}]\"",
            "|",
            "python",
            "-m",
            "json.tool"
        ],
        "delta": "0:00:00.006991",
        "end": "2017-10-06 12:35:30.929534",
        "failed": false,
        "rc": 0,
        "start": "2017-10-06 12:35:30.922543",
        "stderr": "",
        "stderr_lines": [],
        "stdout": "\"[{\"foo\": \"bar\", \"abc\": \"xyz\"}, {\"foo\": 123, \"abc\": 456}]\" | python -m json.tool",
        "stdout_lines": [
            "\"[{\"foo\": \"bar\", \"abc\": \"xyz\"}, {\"foo\": 123, \"abc\": 456}]\" | python -m json.tool"
        ]
    }
}

TASK [copy] ********************************************************************************************************************************************************************************************************************************************************************
ok: [localhost]

PLAY RECAP *********************************************************************************************************************************************************************************************************************************************************************
localhost                  : ok=4    changed=1    unreachable=0    failed=0


$ cat /tmp/foo
[{"foo": "bar", "abc": "xyz"}, {"foo": 123, "abc": 456}]

play.yml

---
- hosts: localhost
  connection: local
  gather_facts: False
  vars:
    mylistofdicts:
      - { foo: bar, abc: xyz }
      - { foo: 123, abc: 456 }
  tasks:
    - debug:
        msg: "{{ mylistofdicts|to_json }}"

    - command: echo '"{{ mylistofdicts|to_json }}"' | python -m json.tool
      register: result

    - debug: var=result

    - copy:
        content: "{{ mylistofdicts|to_json }}"
        dest: /tmp/foo