reset.yml

- name: Setting variables based on key/value pairs in dict
  hosts: localhost
  gather_facts: false
  tasks:
    - name: Before
      debug:
        msg:
          etc_pamd_root: "{{ etc_pamd_root | default('not set') }}"
          etc_pamd_files: "{{ etc_pamd_root | default('not set') }}"

    - name: dict2items
      debug:
        msg: "{{ path_vars | dict2items }}"

    - name: Copy
      set_fact:
        "{{ item.key }}": "{{ item.value }}"
      loop: "{{ path_vars | dict2items }}"

    - name: After
      debug:
        msg:
          etc_pamd_root: "{{ etc_pamd_root | default('not set') }}"
          etc_pamd_files: "{{ etc_pamd_files | default('not set') }}"
  vars:
    path_vars:
      etc_pamd_root: '/etc/pam.d'
      etc_pamd_files:
        - '/etc/pam.d/password-auth'
        - '/etc/pam.d/system-auth'