refactor(bootstrap): restructure package lists to self-contained per-OS dicts with base/extra/conditional

roles/bootstrap/tasks/rhel.yml

@@ -1,12 +1,22 @@
 ---
 - name: Bootstrap RHEL System
+  vars:
+    _rhel_config: "{{ lookup('vars', bootstrap_var_key) }}"
+    _rhel_repos: "{{ _rhel_config.repos | map('regex_replace', '^', '--repo=') | join(' ') }}"
+    _rhel_groups: "{{ _rhel_config.base | join(' ') }}"
+    _rhel_extra: >-
+      {{
+        ((_rhel_config.extra | default([])) + (_rhel_config.conditional | default([])))
+        | reject('equalto', '')
+        | join(' ')
+      }}
   block:
     - name: Install base packages in chroot environment
       ansible.builtin.command: >-
-        dnf --releasever={{ os_version_major }} --repo=rhel{{ os_version_major }}-baseos
+        dnf --releasever={{ os_version_major }} {{ _rhel_repos }}
         --installroot=/mnt
         --setopt=install_weak_deps=False --setopt=optional_metadata_types=filelists
-        groupinstall -y core base standard
+        groupinstall -y {{ _rhel_groups }}
       register: bootstrap_result
       changed_when: bootstrap_result.rc == 0
       failed_when:
@@ -40,15 +50,8 @@
         remote_src: true
 
     - name: Install additional packages in chroot
-      vars:
-        bootstrap_rhel_extra: >-
-          {{
-            lookup('vars', bootstrap_var_key)
-            | reject('equalto', '')
-            | join(' ')
-          }}
       ansible.builtin.command: >-
         {{ chroot_command }} dnf --releasever={{ os_version_major }}
-        --setopt=install_weak_deps=False install -y {{ bootstrap_rhel_extra }}
+        --setopt=install_weak_deps=False install -y {{ _rhel_extra }}
       register: bootstrap_result
       changed_when: bootstrap_result.rc == 0