Use debian_version custom fact

roles/base/templates/etc/apt/preferences.d/pins.j2

@@ -2,11 +2,11 @@
 # {{ ansible_managed }}
 
 Package: *
-Pin: release a={{ ansible_distribution_release }}
+Pin: release a={{ debian_codename }}
 Pin-Priority: 999
 
 {% if 'base' in group_names %}
 Package: *
-Pin: release a={{ ansible_distribution_release }}-backports
+Pin: release a={{ debian_codename }}-backports
 Pin-Priority: -1
 {% endif %}

roles/base/templates/etc/default/grub.j2

@@ -3,7 +3,7 @@
 GRUB_DEFAULT=0
 GRUB_TIMEOUT=5
 GRUB_DISTRIBUTOR="PVC Parallel Virtual Cluster - Debian"
-{% if ansible_distribution_major_version|int >= 11 %}
+{% if debian_version|int >= 11 %}
 GRUB_CMDLINE_LINUX="systemd.unified_cgroup_hierarchy=1 {{ grub_cmdline }}"
 {% else %}
 GRUB_CMDLINE_LINUX="{{ grub_cmdline }}"

roles/pvc/tasks/main.yml

@@ -59,7 +59,7 @@
 # Install CPU tuning
 - include: cputuning/main.yml
   tags: pvc-cputuning
-  when: ansible_distribution_major_version|int >= 11 and cpu_tuning is defined
+  when: debian_version|int >= 11 and cpu_tuning is defined
 
 - name: restart server on first install
   shell: 'sleep 3 && shutdown -r now "Ansible updates triggered"'