netboot.xyz/roles/netbootxyz/tasks/generate_signatures.yml

---
- name: Gather list of source files
  ansible.builtin.command: ls {{ netbootxyz_root }}
  register: source_files

- name: Create directories for signatures
  ansible.builtin.file:
    path: "{{ item }}"
    state: directory
  with_items:
    - "{{ sigs_dir }}"

- name: Generate signatures for source files
  ansible.builtin.shell: |
    openssl cms -sign -binary -noattr -in {{ netbootxyz_root }}/{{ item }} \
    -signer {{ codesign_cert_filename }} -inkey {{ codesign_key_filename }} -certfile {{ cert_file_filename }} -outform DER \
    -out {{ sigs_dir }}/{{ item }}.sig
  args:
    chdir: "{{ cert_dir }}"
  with_items:
    - "{{ source_files.stdout_lines }}"