refactor!: switch hosts variables to a flat layout

collections/ansible_collections/nullified/infrastructure/roles/security/tasks/main.yml

@@ -4,16 +4,11 @@
     gather_subset:
       - distribution
 
-- name: '[setup] merge with custom vars'
-  ansible.builtin.set_fact:
-    security: "{{ security | combine(custom_security, recursive=recursive_combine) }}"
-  changed_when: false
-
 - include_tasks: firewall.yml
 
 - name: '[apt] force HTTPS sources'
   become: true
-  when: security.apt.force_https is truthy
+  when: security_apt_force_https is truthy
   block:
     - name: '[apt] fetch apt information'
       ansible.builtin.command:
@@ -25,7 +20,7 @@
         path: "{{ item }}"
         regexp: 'http://'
         replace: 'https://'
-      loop: "{{ apt_source_files.stdout_lines | difference(security.apt.https_ignore_list) }}"
+      loop: "{{ apt_source_files.stdout_lines | difference(security_apt_https_ignore_list) }}"
       notify:
         - 'security : [apt] update sources'
 
@@ -98,7 +93,7 @@
   block:
     - name: '[clamav] retrieve and install clamav package'
       ansible.builtin.apt:
-        deb: https://www.clamav.net/downloads/production/clamav-{{ security.clamav.version }}.linux.x86_64.deb
+        deb: https://www.clamav.net/downloads/production/clamav-{{ security_clamav_version }}.linux.x86_64.deb
         force_apt_get: true
         state: present
     - name: '[clamav] add clamav group'