build-lunchbox-iso.yml

---
- hosts: localhost
  become: yes
  vars:
    local_home: "{{ lookup('env','HOME') }}"
    custom_install_image_src_iso: rhel-8.1-x86_64-dvd.iso
    custom_install_image_dst_iso: lunchbox-8.1-x86_64-dvd.iso
    custom_install_image_ks_file: lunchbox-ks.cfg
    custom_install_image_label: "Lunchbox_8.1"
    custom_install_image_menu_label: "Lunchbox 8.1"
  tasks:
    - name: Check if src iso exists
      stat:
        path: "{{ local_home }}/{{ custom_install_image_src_iso }}"
        get_checksum: no
        get_md5: no
        get_mime: no
        get_attributes: no
      register: custom_install_image_src_iso_stat 

    - name: fail if src iso doesn't exist
      fail:
        msg: "{{ local_home }}/{{ custom_install_image_src_iso }} not found"
      when: not custom_install_image_src_iso_stat.stat.exists

    - name: check if ks file exists
      stat:
        path: "{{ custom_install_image_ks_file }}"
        get_checksum: no
        get_md5: no
        get_mime: no
        get_attributes: no
      register: custom_install_image_ks_file_stat

    - name: fail if ks file doesn't exist
      fail:
        msg: "{{ custom_install_image_ks_file }} not found"
      when: not custom_install_image_ks_file_stat.stat.exists

    - name: install required packages
      package:
        name:
          - mkisofs
          - syslinux
          - isomd5sum
        state: present

    - name: Create temporary directory
      tempfile:
        state: directory
      register: custom_install_image_temp_dir

    - name: Create src_iso mount point
      file:
        state: directory
        path: "{{ custom_install_image_temp_dir.path }}/src_files"

    - name: Create dst_files build dir
      file:
        state: directory
        path: "{{ custom_install_image_temp_dir.path }}/dst_files"

    - name: mount src_iso
      command: "mount -oloop,ro {{ local_home }}/{{ custom_install_image_src_iso }} {{ custom_install_image_temp_dir.path }}/src_files"
      args:
        warn: false

    - name: rsync src_files to dst_files
      synchronize:
        src: "{{ custom_install_image_temp_dir.path }}/src_files/"
        dest: "{{ custom_install_image_temp_dir.path }}/dst_files"

    - name: copy ks file
      copy:
        src: "{{ custom_install_image_ks_file }}"
        dest: "{{ custom_install_image_temp_dir.path }}/dst_files/lunchbox-ks.cfg"

    - name: remove troubleshooting section
      replace: 
        path: "{{ custom_install_image_temp_dir.path }}/dst_files/EFI/BOOT/grub.cfg"
        regexp: "^submenu(.*\n)*"
        replace: ""

    - name: change default selection
      replace: 
        path: "{{ custom_install_image_temp_dir.path }}/dst_files/EFI/BOOT/grub.cfg"
        regexp: "^set default.*$"
        replace: 'set default="0"'

    - name: replace RHEL disk label
      replace:
        path: "{{ custom_install_image_temp_dir.path }}/dst_files/EFI/BOOT/grub.cfg"
        regexp: "RHEL.8\\.1(\\\\x20)?( )?Server\\.x86_64"
        replace: "{{ custom_install_image_label }}"

    - name: add in kickstart references
      replace:
        path: "{{ custom_install_image_temp_dir.path }}/dst_files/EFI/BOOT/grub.cfg"
        regexp: "(inst\\.[^ ]* )+"
        replace: "inst.stage2=hd:LABEL={{ custom_install_image_label }} inst.ks=hd:LABEL={{ custom_install_image_label }}:/lunchbox-ks.cfg "

    - name: replace menu label
      replace:
        path: "{{ custom_install_image_temp_dir.path }}/dst_files/EFI/BOOT/grub.cfg"
        regexp: "^(menuentry.+?nstall ).+?('.*)$"
        replace: '\1{{ custom_install_image_menu_label }}\2'
    
    - name: create dst_iso
      command: >
        mkisofs -r -T -J -V '{{ custom_install_image_label }}' -b isolinux/isolinux.bin -c isolinux/boot.cat -no-emul-boot 
        -boot-load-size 4 -boot-info-table -eltorito-alt-boot -e images/efiboot.img -no-emul-boot 
        -o {{ local_home }}/{{ custom_install_image_dst_iso }} {{ custom_install_image_temp_dir.path }}/dst_files

    - name: make dst_iso hybrid
      command: "isohybrid {{ local_home }}/{{ custom_install_image_dst_iso }}"

    - name: update dst_iso md5 checksum
      command: "implantisomd5 {{ local_home }}/{{ custom_install_image_dst_iso }}"

    - name: unmount src_iso
      command: "umount -R -d {{ custom_install_image_temp_dir.path }}/src_files"

    - name: delete temporary directories
      file:
        state: absent
        path: "{{ custom_install_image_temp_dir.path }}"