Add os variant support to kvm guest install

group_vars/rocky8.yml

@@ -0,0 +1,22 @@
+---
+# default resources for new vm
+dsk_size: 20
+mem_size: 2048
+num_cpus: 2
+
+# extra args for virt-install
+ks_file: "{{ boot_url }}/ks/rocky8.ks"
+ipcmd: >-
+  {% if network_interfaces[0]['proto'] is defined %}
+  {%   if network_interfaces[0]['proto'] == 'static' %}
+  {%     set int=network_interfaces[0] %}
+  {%     if int['ipaddr'] is defined and int['gateway'] is defined %}
+  nameserver=8.8.8.8
+  ip={{ int['ipaddr'] }}::{{ int['gateway'] }}:{{ int['netmask'] }}::eth0:none
+  {%     endif %}
+  {%   endif %}
+  {% endif %}
+virt_install_os_args: >
+  --location https://download.rockylinux.org/pub/rocky/8/BaseOS/x86_64/os
+  --extra-args "inst.ks={{ ks_file }} console=ttyS0 net.ifnames=0 bootdev=eth0 {{ ipcmd }}"
+virt_install_os_variant: centos8

playbooks/include/deploy-kvm-guest.yml

@@ -92,6 +92,9 @@
           --vcpus "sockets=1,cores={{ num_cpus }},threads=1,placement=auto" \
           --memory {{ mem_size }} --cpu host-passthrough \
           --disk {{ os_disk_image }},{{ dsk_opts }},size={{ dsk_size }} \
+          {% if virt_install_os_variant is defined -%}
+          --os-variant {{ virt_install_os_variant }} \
+          {% endif -%}
           {% if inject -%}
           --initrd-inject {{ tmpdir.path }}/include.ks \
           {% endif -%}