fix(bootstrap): repair version-specific package availability across distributions

roles/bootstrap/tasks/ubuntu.yml

@@ -3,16 +3,43 @@
   vars:
     bootstrap_ubuntu_release: >-
       {{ 'plucky' if bootstrap_os_key == 'ubuntu' else 'noble' }}
-    bootstrap_ubuntu_extra: >-
+    bootstrap_ubuntu_package_config: >-
       {{
         lookup('vars', bootstrap_var_key)
-        | reject('equalto', '')
-        | join(' ')
       }}
+    bootstrap_ubuntu_base_packages: >-
+      {{
+        bootstrap_ubuntu_package_config.base
+        | default([])
+        | reject('equalto', '')
+        | list
+      }}
+    bootstrap_ubuntu_extra_packages: >-
+      {{
+        bootstrap_ubuntu_package_config.extra
+        | default([])
+        | reject('equalto', '')
+        | list
+      }}
+    bootstrap_ubuntu_base_csv: "{{ bootstrap_ubuntu_base_packages | join(',') }}"
+    bootstrap_ubuntu_extra: "{{ bootstrap_ubuntu_extra_packages | join(' ') }}"
   block:
+    - name: Validate Ubuntu package configuration
+      ansible.builtin.assert:
+        that:
+          - bootstrap_ubuntu_package_config is mapping
+          - bootstrap_ubuntu_package_config.base is defined
+          - bootstrap_ubuntu_package_config.base is sequence
+          - bootstrap_ubuntu_package_config.base is not string
+          - bootstrap_ubuntu_package_config.extra is defined
+          - bootstrap_ubuntu_package_config.extra is sequence
+          - bootstrap_ubuntu_package_config.extra is not string
+        fail_msg: "bootstrap package definition for {{ bootstrap_var_key }} must be a mapping with base/extra lists."
+        quiet: true
+
     - name: Install Ubuntu base system
       ansible.builtin.command: >-
-        debootstrap --include=linux-image-generic
+        debootstrap --include={{ bootstrap_ubuntu_base_csv }}
         {{ bootstrap_ubuntu_release }} /mnt
         http://archive.ubuntu.com/ubuntu/
       register: bootstrap_ubuntu_base_result
@@ -35,6 +62,7 @@
       changed_when: bootstrap_ubuntu_update_result.rc == 0
 
     - name: Install extra packages
+      when: bootstrap_ubuntu_extra_packages | length > 0
       ansible.builtin.command: "{{ chroot_command }} apt install -y {{ bootstrap_ubuntu_extra }}"
       register: bootstrap_ubuntu_extra_result
       changed_when: bootstrap_ubuntu_extra_result.rc == 0