ansible/playbooks/update_ssh_keys.yml

- hosts: datacenter
  tasks:
  # Deploy SSH Key
  # --
  - name: Create a directory if it does not exist
    ansible.builtin.file:
      path: ~/.ssh
      state: directory
      mode: '0700'
  - name: Download id_rsa
    ansible.builtin.get_url:
      url: http://192.168.77.101:48000/ssh/id_rsa
      dest: ~/.ssh/id_rsa
      mode: '0600'
  - name: Download id_rsa.pub
    ansible.builtin.get_url:
      url: http://192.168.77.101:48000/ssh/id_rsa.pub
      dest: ~/.ssh/id_rsa.pub
      mode: '0600'
  - name: get remote file contents
    command: "cat {{ ansible_env.HOME }}/.ssh/id_rsa.pub"
    register: key
  - name: show key contents
    debug:
      var: key.stdout

  - name: Ensure we have our own comment added to /etc/services
    ansible.builtin.lineinfile:
      path: "{{ ansible_env.HOME }}/.ssh/authorized_keys"
      line: "{{ key.stdout }}"
      create: yes
  - name: Ensure we have our own comment added to /etc/services
    ansible.builtin.lineinfile:
      path: "/root/.ssh/authorized_keys"
      line: "{{ key.stdout }}"
      create: yes
    become: true