Ensure locale is set to en_US.UTF-8 for baremetal systems

RHEL 8.4 guest images set the locale to LANG=en_US
which results in error during the deploy.
This role ensure that the locale includes
LANG=en_US.UTF-8 after the image boots.

Related-Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1935345
Change-Id: I06dd113e41d4b47e74663cc5c7bea74434cfa0fc

playbooks/baremetal-prep-virthost.yml

@@ -89,6 +89,17 @@
         - ansible_distribution == 'CentOS'
         - ansible_distribution_major_version|int >= 8
 
+- name: Ensure locale has LANG=en_US.UTF-8
+  hosts: undercloud
+  gather_facts: false
+  tasks:
+    - include_role:
+        name: baremetal-prep-virthost
+        tasks_from: set_locale_UTF_8
+      when:
+        - ansible_distribution == 'RedHat'
+        - ansible_distribution_major_version|int >= 8
+
 - name: Prepare the host for PXE forwarding
   hosts: virthost
   gather_facts: true

roles/baremetal-prep-virthost/tasks/set_locale_UTF_8.yml

@@ -0,0 +1,10 @@
+---
+- name: Get current locale and language configuration
+  shell: localectl status | grep 'LANG'
+  register: locale_status
+  changed_when: false
+
+- name: run localectl to set LANG=en_US.UTF-8
+  become: true
+  command: "localectl set-locale LANG=en_US.UTF-8"
+  when: '"LANG=en_US.UTF-8" not in locale_status.stdout'