base_image: fix locale warnings in custom images

Fix "cannot change locale" warnings during SSH connections by properly
configuring locales in the virt-builder template:

- Add locales-all package to main install command for comprehensive
  locale support
- Change locale generation from firstboot-command to run-command to
  execute during image build instead of first boot
- Remove problematic dpkg-reconfigure command that was failing in
  non-interactive environment

This ensures en_US.UTF-8 locale is properly configured and available
when guests boot, eliminating locale warnings during SSH sessions.

Generated-by: Claude AI
Signed-off-by: Daniel Gomez <[email protected]>

Author: dkruces

playbooks/roles/base_image/templates/virt-builder.j2

@@ -11,7 +11,7 @@ mkdir {{ target_dir }}
 copy-in {{ guestfs_distro_source_and_dest_file }}:{{ target_dir }}
 {% endif %}
 
-install sudo,qemu-guest-agent,python3,bash
+install sudo,qemu-guest-agent,python3,bash,locales-all
 run-command useradd {{ kdevops_uid }} -s /bin/bash -m kdevops
 append-line /etc/sudoers.d/kdevops:kdevops   ALL=(ALL)       NOPASSWD: ALL
 edit /etc/default/grub:s/^GRUB_CMDLINE_LINUX_DEFAULT=.*/GRUB_CMDLINE_LINUX_DEFAULT="console=ttyS0"/
@@ -63,9 +63,8 @@ uninstall cloud-init
 write /etc/default/locale:LANG=en_US.UTF-8
 append-line /etc/default/locale:LANGUAGE=en_US:en
 write /etc/locale.gen:en_US.UTF-8 UTF-8
-firstboot-command locale-gen en_US.UTF-8
-firstboot-command update-locale LANG=en_US.UTF-8
-firstboot-command DEBIAN_FRONTEND=noninteractive DEBCONF_NONINTERACTIVE_SEEN=true dpkg-reconfigure -p low --force locales
+run-command locale-gen en_US.UTF-8
+run-command update-locale LANG=en_US.UTF-8
 firstboot-command systemctl stop ssh
 firstboot-command systemctl start ssh