playbook-single.yml

---
##########
- name: Check installation
  hosts: localhost
  become: true
  gather_facts: true
  
  tasks:
  - name: Ensure mkisofs and rsync is installed (Centos / RHEL)
    yum:
      name: "{{ packages }}"
    become: true      
    delegate_to: localhost
    vars:     
      packages:
      - rsync 
      - genisoimage
    when: ansible_distribution == 'CentOS' or ansible_distribution == 'Red Hat Enterprise Linux'

  - name: Ensure mkisofs and rsync is installed (Ubuntu / Debian)
    apt:
      name: "{{ packages }}"
    become: true      
    delegate_to: localhost
    vars:     
      packages:
      - rsync 
      - genisoimage
    when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu'

##########
- name: Check the original RHCOS ISO
  hosts: localhost
  gather_facts: false

  tasks:
  - block:
    - name: Create the download url (ppc64le)
      set_fact:
        dl_url: 'https://mirror.openshift.com/pub/openshift-v{{ ocp_version.split(".")[0] }}/ppc64le/dependencies/rhcos/{{ ocp_version.split(".")[0] }}.{{ ocp_version.split(".")[1] }}/{{ ocp_version }}/{{ iso_name_ppc64 }}'
        my_iso: "{{ iso_name_ppc64 }}"
        my_cksum: "{{ iso_checksum_ppc64 }}"
      when: arch == 'ppc64le'

    - name: Create the download url (x86_64)
      set_fact:
        dl_url: 'https://mirror.openshift.com/pub/openshift-v{{ ocp_version.split(".")[0] }}/dependencies/rhcos/{{ ocp_version.split(".")[0] }}.{{ ocp_version.split(".")[1] }}/{{ ocp_version }}/{{ iso_name }}'
        my_iso: "{{ iso_name }}"
        my_cksum: "{{ iso_checksum }}"
      when: arch == 'x86_64'

    - name: Check if ISO is already available
      stat:
        path: /tmp/{{ my_iso }}
        checksum_algorithm: sha256
        get_checksum: yes
      register: iso_file

    - name: Get the original ISO
      get_url:
        url: "{{ dl_url }}"
        dest: /tmp
        checksum: sha256:{{ my_cksum }}
      when: not iso_file.stat.exists or iso_file.stat.checksum != my_cksum

    - name: Mount ISO
      mount:
        src: /tmp/{{ my_iso }}
        path: /mnt/iso
        fstype: iso9660
        opts: ro,noauto
        state: mounted
      become: true

    - name: Copy contents of iso
      synchronize:
        src: /mnt/iso/
        dest: /tmp/rhcos-iso/

##########
- name: Create the custom iso
  hosts: all
  order: sorted
  gather_facts: false

  tasks:
  - name: Generate the webserver full path
    set_fact:
      webserver_ignition_fullpath: "http://{{ webserver_url }}:{{ webserver_port }}{{ webserver_ignition_path | default('') }}/"

  # ppc64
  - block:
    - name: Relace the grub.cfg file (ppc64le)
      template:
        src: "grub.cfg-single.j2"
        dest: /tmp/rhcos-iso/boot/grub/grub.cfg  

    - name: Create new ISO image (ppc64le)
      command: >
          /usr/bin/mkisofs -U -A 'RHCOS-CustomIso' -V 'RHCOS-CustomIso' -volset 'RHCOS-CustomIso' -J -joliet-long -r -v -T 
            -x ./lost+found -o /tmp/rhcos-install-cluster.iso -chrp-boot .
      args:
        chdir: /tmp/rhcos-iso/
    become: true
    delegate_to: localhost
    when: arch == 'ppc64le'

  # x86_64
  - block:
    - name: Relace the isolinux.cfg file (x86_64)
      template:
        src: "isolinux.cfg-single.j2"
        dest: /tmp/rhcos-iso/isolinux/isolinux.cfg
  
    - name: Relace the grub.cfg file (x86_64)
      template:
        src: "grub.cfg-single.j2"
        dest: /tmp/rhcos-iso/EFI/redhat/grub.cfg

    - name: Create new ISO image (x86_64)
      command: >
          /usr/bin/mkisofs -U -A 'RHCOS-CustomIso' -V 'RHCOS-CustomIso' -volset 'RHCOS-CustomIso' -J -joliet-long -r -v -T
            -x ./lost+found -o /tmp/rhcos-install-cluster.iso -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 .
      args:
        chdir: /tmp/rhcos-iso/
    become: true
    delegate_to: localhost
    when: arch == 'x86_64'

##########
- name: Cleanup tasks
  hosts: localhost
  gather_facts: false

  tasks:
  - block: 
    - name: Unmount ISO
      mount:
        path: /mnt/iso
        state: absent

    - name: Remove ISO copy
      file:
        path: /tmp/rhcos-iso
        state: absent
    become: true
...