ansible-role-debian-installer/tasks/installer.yml

---

- name: copy linux kernel
  copy:
    src: /usr/lib/debian-installer/images/9/amd64/text/debian-installer/amd64/linux
    dest: "{{debian_installer_directory}}/linux"
    remote_src: true

- name: copy initrd for customization
  shell: gunzip -c
    /usr/lib/debian-installer/images/9/amd64/text/debian-installer/amd64/initrd.gz
    > {{debian_installer_directory}}/initrd

- name: insert files into initrd
  shell: echo {{item}} | cpio --create --format=newc --append --file=initrd
  args:
    chdir: "{{debian_installer_directory}}"
  with_items:
    - preseed.cfg
    - run.sh

- name: compress custom initrd
  command: gzip -f {{debian_installer_directory}}/initrd

- name: merge initrd.gz and firmware.cpio.gz
  shell: cat
    /opt/debian-installer-unofficial-firmware.cpio.gz
    >> {{debian_installer_directory}}/initrd.gz
  when: debian_installer_nonfree_firmware