Prevent ansible from re-ordering JSON?

[Eddie Mashayev]

Hey,

I've this weird situation when I'm passing json(as a string) it still reordering it's order and not consistent.

Example:

my_var: |
  {
    "b": 1
    "a": 2
  }

when running ansible with

- name: "Set up json file"
  copy:
    dest: "/tmp/file.json"
    content: "{{ my_var }}"

every ansible run the file is being changed(because json order is being changed), in order to fix it I'm using:

content: "{{ my_var | from_json | to_nice_json }}"

This command keeps the order the same each run, because to_nice_json sorts the output (`sort_keys=True`).

My question is why my_var is being changed all the time even it's a string and not json

[Kai Stian Olstad]

On Tuesday, 6 November 2018 14:20:15 CET Eddie Mashayev wrote:
> I've this weird situation when I'm passing json(as a string) it still
> reordering it's order and not consistent.
>
> Example:
>
> my_var: |
> {
> "b": 1
> "a": 2
> }
>
>
> when running ansible with
>
> - name: "Set up json file"
> copy:
> dest: "/tmp/file.json"
> content: "{{ my_var }}"
>
>
> every ansible run the file is being changed(because json order is being
> changed), in order to fix it I'm using:
> content: "{{ my_var | from_json | to_nice_json }}"
>

> My question is why *my_var* is being changed all the time even it's a
> string and *not* json

This is something Ansible is inherited from Python, dictionary in Python is unordered.

--
Kai Stian Olstad

[Eddie Mashayev]

Thanks.

[Eddie Mashayev]

Hey Kai,

The thing is that is not a dictionary but string, pay attention to the "|" after my_var:

my_var: |
  {
    "b": 1
    "a": 2
  }

So the question is still the same, why string is unordered in Ansible?

Thanks,

Eddie Mashayev
Cell : 054-4692519

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[Brian Coca]

To 'keep it a string' content: "{{ my_var|string }}" , from_json
actually forces conversion (which would be happening anyways)



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----------
Brian Coca