Ansible: Nested loop with dictionary & dynamic list : 'item' is undefined" Error

Question

The requirement was to get a dynamic set of files from a directory based on a dictionary. I've implemented it with concept mentioned in: Nested loop with a list and a dictionary

    - name: color print - hardcoded
      debug:
        msg:
        - "{{ item[0] }} - {{ item[1] }}"
      with_nested:
        - [ 'red', 'green' ]
        - [ 'grapes', 'apple', 'chilli' ]

The above works correctly

But if I change the 2nd list to a dynamically generated list from the 1st list, it is not working. it throws 'item' is undefined" error

Below is a rough implementation I'm trying and getting the error

    - name: color print - dynamic
      debug:
        msg:
        - "Copy from directory: {{ item[0] }} to {{ item[1] }}"
      with_nested:
        - [ 'red', 'green' ]
        - "{{colored_fuit| dictsort}}"
      vars:
        - color: "{{ item[0] }}"
        - colored_fuit:
            fruit1: "{{color}}_grapes"
            fruit2: "{{color}}_apple"
            fruit3: "{{color}}_chilli"

Why is it so? It is because the variable is not generated in case of 2nd list?

you have a self-referential set of vars:, where you are trying to define colored_fruit: but also with_nested: over them; it seems you need to move the red, green into a separate step and generate colored_fruit: in that step — mdaniel
– mdaniel, Commented Mar 10, 2022 at 21:10
The question doesn't make sense. You can simply concatenate the items "{{ item.0 }} to {{ item.0 }}_{{ item.1 }}". I deleted the answer because I didn't know what you want. You commented: filter conditions from 1st list. What is the condition? You commented: nesting needs to ensure the specific set only. What is the expected specific set? I asked you to edit the question and make it minimal reproducible example. — Vladimir Botka
– Vladimir Botka, Commented Mar 11, 2022 at 16:36

Frenchy · Accepted Answer · 2022-03-11 08:13:14Z

1

use this piece of code to resolve your problem:

- name: color print - dynamic
  debug:
    msg: "Copy from directory: {{ item.0 }} to {{ item.0 }}_{{ item.1.1 }}"
  loop: "{{ color | product(colored_fuit|dictsort)|list }}"
  vars:
    color: [ 'red', 'green' ]
    colored_fuit:
        fruit1: "grapes"
        fruit2: "apple"
        fruit3: "chilli"

answered Mar 11, 2022 at 8:13

Frenchy

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3 Comments

diaryfolio Over a year ago

this is a great idea thanks for that. But my 2nd list is dependent on the 1st.

Frenchy Over a year ago

i dont understant by "dependent"... the result is a product of 2 lists, same result you want...

diaryfolio Over a year ago

Unfortunately my 2nd list is dependent on the 1st list

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