Normalize user-facing defaults

roles/environment/tasks/main.yml

@@ -17,7 +17,7 @@
 
     - name: Abort if the host is not booted from the Arch install media
       when:
-        - not (custom_iso | default(false) | bool)
+        - not (custom_iso | bool)
         - not environment_archiso_stat.stat.exists
       ansible.builtin.fail:
         msg: This host is not booted from the Arch install media!
@@ -40,10 +40,9 @@
     - name: Set IP-Address
       when:
         - hypervisor == "vmware"
-        - vm_ip is defined
-        - vm_ip | length
+        - vm_ip | length > 0
       ansible.builtin.command: >-
-        ip addr replace {{ vm_ip }}/{{ vm_nms | default(24) }}
+        ip addr replace {{ vm_ip }}/{{ vm_nms }}
         dev {{ environment_interface_name }}
       register: environment_ip_result
       changed_when: environment_ip_result.rc == 0
@@ -51,10 +50,8 @@
     - name: Set Default Gateway
       when:
         - hypervisor == "vmware"
-        - vm_gw is defined
-        - vm_gw | length
-        - vm_ip is defined
-        - vm_ip | length
+        - vm_gw | length > 0
+        - vm_ip | length > 0
       ansible.builtin.command: "ip route replace default via {{ vm_gw }}"
       register: environment_gateway_result
       changed_when: environment_gateway_result.rc == 0
@@ -65,7 +62,7 @@
       changed_when: false
 
     - name: Configure SSH for root login
-      when: hypervisor == "vmware" and (vmware_ssh is defined and vmware_ssh | bool)
+      when: hypervisor == "vmware" and (vmware_ssh | bool)
       block:
         - name: Allow login
           ansible.builtin.replace:
@@ -91,14 +88,14 @@
     - name: Prepare installer environment
       block:
         - name: Speed-up Bootstrap process
-          when: not (custom_iso | default(false) | bool)
+          when: not (custom_iso | bool)
           ansible.builtin.lineinfile:
             path: /etc/pacman.conf
             regexp: ^#ParallelDownloads =
             line: ParallelDownloads = 20
 
         - name: Wait for pacman lock to be released
-          when: not (custom_iso | default(false) | bool)
+          when: not (custom_iso | bool)
           ansible.builtin.wait_for:
             path: /var/lib/pacman/db.lck
             state: absent
@@ -107,7 +104,7 @@
 
         - name: Setup Pacman
           when:
-            - not (custom_iso | default(false) | bool)
+            - not (custom_iso | bool)
             - "'os' not in item or os in item.os"
           community.general.pacman:
             update_cache: true
@@ -141,7 +138,7 @@
                 state: mounted
 
         - name: Configure RHEL Repos for installation
-          when: is_rhel | default(false)
+          when: is_rhel | bool
           block:
             - name: Create directories for repository files and RPM GPG keys
               ansible.builtin.file: