refactor: Use vars/RedHat_N.yml symlink for CentOS, Rocky, Alma wherever possible

tests/vars/rh_distros_vars.yml

@@ -0,0 +1,18 @@
+# vars for handling conditionals for RedHat and clones
+# DO NOT EDIT - file is auto-generated
+---
+# Ansible distribution identifiers that the role treats like RHEL
+__kernel_settings_rh_distros:
+  - AlmaLinux
+  - CentOS
+  - RedHat
+  - Rocky
+
+# Same as above but includes Fedora
+__kernel_settings_rh_distros_fedora: "{{ __kernel_settings_rh_distros + ['Fedora'] }}"
+
+# Use this in conditionals to check if distro is Red Hat or clone
+__kernel_settings_is_rh_distro: "{{ ansible_distribution in __kernel_settings_rh_distros }}"
+
+# Use this in conditionals to check if distro is Red Hat or clone, or Fedora
+__kernel_settings_is_rh_distro_fedora: "{{ ansible_distribution in __kernel_settings_rh_distros_fedora }}"

vars/AlmaLinux_7.yml

@@ -0,0 +1 @@
+RedHat_7.yml

vars/CentOS_7.yml

@@ -0,0 +1 @@
+RedHat_7.yml

vars/Rocky_7.yml

@@ -0,0 +1 @@
+RedHat_7.yml

vars/main.yml

@@ -31,3 +31,21 @@ __kernel_settings_required_facts:
 # the 'gather_subset' parameter of the 'setup' module
 __kernel_settings_required_facts_subsets: "{{ ['!all', '!min'] +
   __kernel_settings_required_facts }}"
+
+# BEGIN - DO NOT EDIT THIS BLOCK - rh distros variables
+# Ansible distribution identifiers that the role treats like RHEL
+__kernel_settings_rh_distros:
+  - AlmaLinux
+  - CentOS
+  - RedHat
+  - Rocky
+
+# Same as above but includes Fedora
+__kernel_settings_rh_distros_fedora: "{{ __kernel_settings_rh_distros + ['Fedora'] }}"
+
+# Use this in conditionals to check if distro is Red Hat or clone
+__kernel_settings_is_rh_distro: "{{ ansible_distribution in __kernel_settings_rh_distros }}"
+
+# Use this in conditionals to check if distro is Red Hat or clone, or Fedora
+__kernel_settings_is_rh_distro_fedora: "{{ ansible_distribution in __kernel_settings_rh_distros_fedora }}"
+# END - DO NOT EDIT THIS BLOCK - rh distros variables