configurations-ansible/roles/yggdrasil/tasks/update_peers.yml

- name: Download new peers file from remote url
  ansible.builtin.get_url:
    url: "{{yggdrasil_peers_list_url}}"
    dest: /tmp/yggdrasil_peers.conf
    mode: '0500'
    force: true

- name: Get peers from remote file list
  ansible.builtin.slurp:
    src: "/tmp/yggdrasil_peers.conf"
  register: yggdrasil_peers_encoded

- name: Decode remote peers content
  set_fact:
    yggdrasil_peers: "{{yggdrasil_peers_encoded.content | b64decode}}"

- name: Update yggdrasil.conf with peers
  replace:
    path: /etc/yggdrasil.conf
    regexp: '\bPeers:\s*((?:(?!\bPeers\b).|\n)+?)\](?!:)'
    replace: "{{yggdrasil_peers}}"