Find and replace values in dict

Get Help
,
2

The ansible.utils.replace_keys filter does exactly what you want, but with keys instead of values. It should be possible to use ansible_collections/ansible/utils/plugins/plugin_utils/replace_keys.py as a starting point and create a filter that does a similar thing with values.

Another approach would be to convert Starting_situation to a string with to_yaml or to_json, then loop over your To_be_replaced keys substituting the values with regex_replace, and finally converting the whole thing back with from_yaml or from_json as appropriate. This may be a bit shaky if you have “interesting” strings in To_be_replaced – i.e. regex meta-characters.

Here’s a working implementation of the latter method:

---
# brainmue01.yml
- name: Swapping values via map
  hosts: localhost
  gather_facts: false
  vars:
    Starting_situation:
      - Level: x00
        Part1:
          - Part1-A
        Part2: true
        Part3:
          - A: Info
            B: 20%
            C: false
      - Level: y00
        Part1:
          - Part1-B
          - Part1-C
        Part2: true
        Part3:
          - A: Info
            B: 43%
            C: true

    To_be_replaced:
      Part1-A: AAA1234
      Part1-B: BBB4321
      Part1-C: CBA9876
  tasks:
    - name: Overwrite Starting_situation variable with a fact
      ansible.builtin.set_fact:
        Starting_situation: '{{ Starting_situation | to_json | regex_replace("\b" ~ item ~ "\b", To_be_replaced[item]) }}'
      loop: '{{ To_be_replaced.keys() }}'  

    - name: Show the resulting fact
      ansible.builtin.debug:
        msg: '{{ Starting_situation }}'
3 Likes