- name: Install rngd
  apt:
    name: rng-tools
    state: present

- name: Configure rngd
  lineinfile:
    path: /etc/default/rng-tools
    line: '{{ item.key }}={{ item.value }}'
    regexp: '^#?{{ item.key }}={{ item.value }}'
  with_dict:
    HRNGDEVICE: /dev/hwrng
    RNGDOPTIONS: '"-s 256 -W 80%"'
  loop_control:
    label: "{{ item.key }}"
  notify: restart rngd