---
# TODO: for now we take the PXE environment for granted, so won't install and configure DHCP and TFTP servers; that should become another block defaulting not to be processed
- name: update the SmartOS platform image on the PXE server
  hosts:
    - pxe_server
  gather_facts: no
  vars:
    notification_recipient: tamas@gerczei.eu
    smarthost: mail
    tftp_dir: /data/tftproot
    image_dir: "{{ tftp_dir }}/smartos"
    tftp_user: tftp
    tftp_group: tftp
    download: false # prior download
  tasks:

    - name: fetch platform image
      get_url:
        src: https://us-east.manta.joyent.com/Joyent_Dev/public/SmartOS/platform-latest.tgz # no Manta at eu-ams-1
        dest: /var/tmp/
      when: download

    - name: obtain provided platform image
      copy:
        src: /var/tmp/platform-latest.tgz
        dest: /tmp/
        remote_src: yes
      register: tarball

    - name: process new tarball
      block:

        - name: extract new platform image
          unarchive:
            src: /tmp/platform-latest.tgz
            dest: "{{ image_dir }}"
            extra_opts:
              - --transform
              - 's/^platform-//;s/i86pc/platform\/i86pc/'
            remote_src: yes
            owner: "{{ tftp_user }}"
            group: "{{ tftp_group }}"
          become: yes

        - name: find images
          find:
            paths: "{{ image_dir }}"
            file_type: directory
          register: found_images

        - name: determine latest release
          set_fact:
            last_release: "{{ ( found_images.files | sort(attribute='mtime',reverse=true) | first )['path'] | basename }}"

        - name: generate iPXE configuration
          template:
            src: smartos_ipxe.j2
            dest: "{{ tftp_dir }}/smartos.ipxe"
            owner: "{{ tftp_user }}"
            group: "{{ tftp_group }}"
            backup: yes
          become: yes

        - name: send e-mail notification
          mail:
            host: "{{ smarthost }}"
            from: "Raspi Root <noreply@fejezd.be>"
            to: "{{ notification_recipient }}"
            subject: "SmartOS update ({{ last_release }}) available"
            body: "created {{ image_dir }}/{{ last_release }} and {{ tftp_dir }}/smartos.ipxe"

      when: tarball|changed