test-json.yml

---
# ansible-galaxy collection install ansible.utils
# ansible-playbook test-json.yml

- name: Play around with JSON inputs
  hosts: localhost
  connection: local
  become: false
  gather_facts: false
  vars:
    input: "{{ lookup('file','files/ospf.json') | from_json }}"

  tasks:
    - name: Create interfaces Dictionary
      set_fact:
        interfaces: "{{ input.parsed.interfaces }}"

    - name: Print out interfaces
      debug:
        var: interfaces

    - name: Print out flatten interfaces input
      debug:
        msg: "{{ lookup('ansible.utils.to_paths', interfaces) }}"

    - name: TEST 1
      block:
        - name: Loop over interfaces
          include_tasks: test-json-tasks-1.yml
          with_items: "{{ interfaces | dict2items }}"

    - name: TEST 2
      block:
        - name: Create neighbors dictionary (this is now per interface)
          set_fact:
            neighbors: "{{ interfaces | json_query('*.neighbors') }}"

        - name: Print out neighbors
          debug:
            msg: "{{ neighbors }}"

        - name: Loop over neighbors
          include_tasks: test-json-tasks-2.yml
          with_items: "{{ neighbors }}"
          loop_control:
            loop_var: data

    - name: TEST 3
      block:
        - name: Loop over neighbors
          include_tasks: test-json-tasks-3.yml
          with_items: "{{ neighbors }}"
          loop_control:
            loop_var: data

    - name: TEST 4
      block:
        - name: Loop with deep json_query
          debug:
            var: "{{ item }}"
          with_items: "{{ input | json_query('parsed.interfaces.*.neighbors[].*.[address, state]') }}"

    - name: TEST 5
      block:
        - name: Loop over neighbors and validate data with a schema
          include_tasks: test-json-tasks-4.yml
          with_items: "{{ neighbors }}"
          loop_control:
            loop_var: data