Normalize user-facing defaults

roles/configuration/tasks/bootloader.yml

@@ -3,16 +3,8 @@
   block:
     - name: Install Bootloader
       vars:
-        configuration_use_efibootmgr: "{{ is_rhel | default(false) }}"
-        configuration_efi_dir: >-
-          {{
-            partitioning_efi_mountpoint
-            | default(
-                "/boot/efi"
-                if (is_rhel | default(false)) or (os | lower in ["ubuntu", "ubuntu-lts"])
-                else "/boot"
-              )
-          }}
+        configuration_use_efibootmgr: "{{ is_rhel | bool }}"
+        configuration_efi_dir: "{{ partitioning_efi_mountpoint }}"
         configuration_bootloader_id: >-
           {{ "ubuntu" if os | lower in ["ubuntu", "ubuntu-lts"] else os }}
         configuration_efi_vendor: >-
@@ -47,7 +39,7 @@
             else (
               '/usr/bin/env PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin '
               + '/usr/sbin/update-initramfs -u -k all'
-              if is_debian | default(false)
+              if is_debian | bool
               else '/usr/bin/dracut --regenerate-all --force'
             )
           }}
@@ -62,9 +54,9 @@
         configuration_grub_cfg_cmd: >-
           {{
             '/usr/sbin/grub2-mkconfig -o '
-            + (partitioning_efi_mountpoint | default('/boot/efi'))
+            + partitioning_efi_mountpoint
             + '/EFI/' + configuration_efi_vendor + '/grub.cfg'
-            if is_rhel | default(false)
+            if is_rhel | bool
             else '/usr/sbin/grub-mkconfig -o /boot/grub/grub.cfg'
           }}
       ansible.builtin.command: "arch-chroot /mnt {{ configuration_grub_cfg_cmd }}"