prep-rhvh-pxe.yml

# TODO: mount /nas/ISOs/RHVH.iso at /var/www/html/rhvh (because inst.stage2 -- grub.cfg-- expects it there)
#
# 6.1.3.2.1 - Preparing the Installation Environment
# https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/html-single/installing_red_hat_virtualization_as_a_self-hosted_engine_using_the_cockpit_web_interface/index#Advanced_RHVH_Install_SHE_cockpit_deploy
---
- hosts: localhost
  gather_facts: no
  vars_prompt:
  - prompt: "Where is the source RHVH ISO file?"
    name: iso_location
    default: "/nas/ISOs/RHVH-4.3-20190512.3-RHVH-x86_64-dvd1.iso"
    private: no

  - prompt: "Where should I put the vmlinuz/initrd.img files --PXE/tftpboot location--"
    name: tftp_location
    default: "/var/lib/tftpboot/"
    private: no

  - prompt: "Where should I put the (large) hypervisor image --HTTP/HTML location--"
    name: http_location
    default: "/var/www/html/"
    private: no

  tasks:
  - name: Get version number from ISO name (e.g. RHVH-4.3-20190512.3)
    set_fact:
      rhvh_version: "{{ iso_location | regex_search('RHVH-[0-9.-]+') | regex_replace('([^0-9a-z])$') }}"

  - name: Create a temporary directory
    command: mktemp -d
    register: results
  - set_fact:
      tmp_location: "{{ results.stdout }}"
    no_log: true

  - name: List ISO's table of contents
    command: isoinfo -R -f -i {{ iso_location }}
    register: iso_contents

  - name: Find which RPM has the squashfs.img (RHVH image)
    set_fact:
      hypervisor_image_rpm: "{{ iso_contents.stdout | regex_search('^.*host-image.*$', multiline=true) }}"

  - name: Extract the ks.cfg, vmlinuz, initrd.img and RHVH images
    shell: isoinfo -R -i {{ iso_location }} -x {{ item.source }} > {{ item.dest }}
    loop:
      - { source: "/ks.cfg", dest: "{{ http_location }}/ks.cfg-{{ rhvh_version }}" }
      - { source: "/images/pxeboot/vmlinuz", dest: "{{ tftp_location }}/vmlinuz-{{ rhvh_version }}" }
      - { source: "/images/pxeboot/initrd.img", dest: "{{ tftp_location }}/initrd.img-{{ rhvh_version }}" }
      - { source: "{{ hypervisor_image_rpm }}", dest: "{{ tmp_location }}/{{ hypervisor_image_rpm | basename }}" }

  - name: Pull the squashfs.img out of the RPM (cpio copy-in mode)
    shell: rpm2cpio "{{ hypervisor_image_rpm | basename }}" | cpio -dimv "*squashfs.img"
    args:
      chdir: "{{ tmp_location }}"
    register: results

  - name: Get the name and path of the squashfs.img (from stderr)
    set_fact:
      squashfs_image: "{{ results.stderr | regex_search('^.*squashfs.img$', multiline=true) }}"

  - name: Move the squashfs.img into place
    copy:
      remote_src: true
      src: "{{ tmp_location }}/{{ squashfs_image }}"
      dest: "{{ http_location }}"

  - name: Cleanup temporary directory
    file:
      path: "{{ tmp_location }}"
      state: absent

  - name: Remove previous stage2 ISO mount
    become: true
    mount:
      path: /var/www/html/rhvh
      state: absent
  - name: Create new stage2 ISO mount
    become: true
    mount:
      path: /var/www/html/rhvh
      src: "{{ iso_location }}"
      fstype: iso9660
      state: mounted

  - debug:
      msg: |
        Please make sure to update {{ tftp_location }}grub.cfg
        and any url=... references in your kickstart file