Find latest ISO images automatically.

livebox.yml

@@ -31,14 +31,12 @@
       - di-netboot-assistant
       - apt-cacher-ng
 
-    live_images:
+    live_desktop:
-      - iso: 'debian-live-11.3.0-amd64-gnome+nonfree.iso'
+      - gnome
-        name: 'gnome'
+      - kde
-      - iso: 'debian-live-11.3.0-amd64-kde+nonfree.iso'
+      - standard
-        name: 'kde'
+
-      - iso: 'debian-live-11.3.0-amd64-standard+nonfree.iso'
+    live_url: 'https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/current-live/amd64/iso-hybrid/'
-        name: 'standard-cli'
-    live_url: 'https://cdimage.debian.org/cdimage/unofficial/non-free/cd-including-firmware/11.3.0-live+nonfree/amd64/iso-hybrid/'
 
     # The edulive role generates customized Debian-Live images.
     # Make sure you have sufficient disk space available (~30GiB?).
@@ -68,6 +66,21 @@
         value: /var/lib/tftpboot
         vtype: string
 
+    - name: find available iso images
+      uri:
+        url: "{{ live_url }}"
+        return_content: true
+      register: idx
+
+    - name: find and set ISO image version
+      set_fact:
+        version: "{{ idx.content | regex_findall('debian-live-(\\d+\\.\\d+\\.\\d+)-amd64-', '\\1') | first }}"
+
+    - name: define ISO image map
+      set_fact:
+        live_iso: "{{ live_iso | default({}) | combine({ item: 'debian-live-' + version + '-amd64-' + item + '+nonfree.iso' }) }}"
+      loop: "{{ live_desktop }}"
+
   roles:
     - up2date_debian
     - netbootinstaller

roles/debianlive/tasks/main.yml

@@ -1,19 +1,28 @@
 ---
 - name: download debian-live images
   get_url:
-    url: "{{ live_url }}{{ item.iso }}"
+    url: "{{ live_url }}{{ item.value }}"
-    dest: "/var/cache/di-netboot-assistant/{{ item.iso }}"
+    dest: "/var/cache/di-netboot-assistant/{{ item.value }}"
     checksum: "sha256:{{ live_url }}/SHA256SUMS"
+  register: new_iso
   loop:
-    "{{ live_images }}"
+    "{{ live_iso | dict2items }}"
+
+- name: umount old iso images
+  mount:
+    path: "/var/lib/tftpboot/d-i/n-live/{{ item.key }}"
+    state: unmounted
+  loop:
+    "{{ live_iso | dict2items }}"
+  when: new_iso.changed
 
 - name: prepare live image directory
   file:
-    path: "/var/lib/tftpboot/d-i/n-live/{{ item.name }}"
+    path: "/var/lib/tftpboot/d-i/n-live/{{ item.key }}"
     state: directory
     mode: 0755
   loop:
-    "{{ live_images }}"
+    "{{ live_iso | dict2items }}"
 
 - name: make sure loop module is loaded
   modprobe:
@@ -22,13 +31,13 @@
 
 - name: loop mount iso images
   mount:
-    path: "/var/lib/tftpboot/d-i/n-live/{{ item.name }}"
+    path: "/var/lib/tftpboot/d-i/n-live/{{ item.key }}"
-    src: "/var/cache/di-netboot-assistant/{{ item.iso }}"
+    src: "/var/cache/di-netboot-assistant/{{ item.value }}"
     fstype: iso9660
     opts: loop,ro,nofail
     state: mounted
   loop:
-    "{{ live_images }}"
+    "{{ live_iso | dict2items }}"
   notify: rebuild di-netboot menu
 
 - name: prepare http downloads
@@ -71,32 +80,32 @@
   lineinfile:
     path: /etc/di-netboot-assistant/ipxemenu.HEAD
     insertafter: '-- Customized Boot Entries --'
-    line: "item {{ item.name }} Debian GNU/Linux {{ item.name }} NFS"
+    line: "item {{ item.key }} Debian GNU/Linux {{ item.key }} NFS"
   loop:
-    "{{ live_images }}"
+    "{{ live_iso | dict2items }}"
   notify: rebuild di-netboot menu
 
 - name: find kernel version
   shell:
     cmd: >-
-      basename /var/lib/tftpboot/d-i/n-live/{{ item.name }}/live/vmlinuz*
+      basename /var/lib/tftpboot/d-i/n-live/{{ item.key }}/live/vmlinuz*
       | sed "s/vmlinuz-//"
   register: images
   changed_when: false
   loop:
-    "{{ live_images }}"
+    "{{ live_iso | dict2items }}"
 
 - name: prepare debian live boot loader ipxe
   blockinfile:
     path: /etc/di-netboot-assistant/ipxemenu.HEAD
-    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.item.name }}"
+    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.item.key }}"
     block: |
-      :{{ item.item.name }}
+      :{{ item.item.key }}
-          echo Booting Debian GNU/Linux {{ item.item.name }} NFS
+          echo Booting Debian GNU/Linux {{ item.item.key }} NFS
-          kernel ${210:string}d-i/n-live/{{ item.item.name }}/live/vmlinuz-{{ item.stdout }} \
+          kernel ${210:string}d-i/n-live/{{ item.item.key }}/live/vmlinuz-{{ item.stdout }} \
           initrd=initrd.img-5.10.0-13-amd64 {{ boot_params|join(' ') }} \
-          nfsroot={{ ansible_default_ipv4.address }}:/var/lib/tftpboot/d-i/n-live/{{ item.item.name }}/
+          nfsroot={{ ansible_default_ipv4.address }}:/var/lib/tftpboot/d-i/n-live/{{ item.item.key }}/
-          initrd ${210:string}d-i/n-live/{{ item.item.name }}/live/initrd.img-{{ item.stdout }}
+          initrd ${210:string}d-i/n-live/{{ item.item.key }}/live/initrd.img-{{ item.stdout }}
           boot
   loop:
     "{{ images.results }}"
@@ -106,13 +115,13 @@
   blockinfile:
     path: /etc/di-netboot-assistant/grub.cfg.HEAD
     insertbefore: "^menuentry 'Boot from local disk..'"
-    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.item.name }}"
+    marker: "# {mark} ANSIBLE MANAGED BLOCK {{ item.item.key }}"
     block: |
-      menuentry 'Debian GNU/Linux Live {{ item.item.name }} NFS' {
+      menuentry 'Debian GNU/Linux Live {{ item.item.key }} NFS' {
-          linux (http,{{ ansible_default_ipv4.address }})/d-i/n-live/{{ item.item.name }}/live/vmlinuz-{{ item.stdout }} \
+          linux (http,{{ ansible_default_ipv4.address }})/d-i/n-live/{{ item.item.key }}/live/vmlinuz-{{ item.stdout }} \
           {{ boot_params|join(' ') }} \
-          nfsroot={{ ansible_default_ipv4.address }}:/var/lib/tftpboot/d-i/n-live/{{ item.item.name }}/
+          nfsroot={{ ansible_default_ipv4.address }}:/var/lib/tftpboot/d-i/n-live/{{ item.item.key }}/
-          initrd (http,{{ ansible_default_ipv4.address }})/d-i/n-live/{{ item.item.name }}/live/initrd.img-{{ item.stdout }}
+          initrd (http,{{ ansible_default_ipv4.address }})/d-i/n-live/{{ item.item.key }}/live/initrd.img-{{ item.stdout }}
       }
   loop:
     "{{ images.results }}"