Add libvirt role

system/extra/libvirt/meta/argument_specs.yml

@@ -0,0 +1,10 @@
+---
+argument_specs:
+  main:
+    options:
+      system_extra_libvirt_user_name:
+        type: "str"
+        required: true
+      system_extra_libvirt_install_zfs_driver:
+        type: "bool"
+        required: true

system/extra/libvirt/tasks/main.yml

@@ -0,0 +1,45 @@
+---
+- name: "install libvirt"
+  ansible.builtin.apt:
+    name:
+      - "dnsmasq"
+      - "libvirt-daemon-system"
+      - "netcat"
+      - "qemu-system"
+    install_recommends: false
+  register: system_extra_libvirt_install
+
+- name: "install zfs storage driver for libvirt"
+  ansible.builtin.apt:
+    name:
+      - "libvirt-daemon-driver-storage-zfs"
+  when:
+    system_extra_libvirt_install_zfs_driver
+  register: system_extra_libvirt_zfs_driver
+
+- name: "enable libvirtd"
+  ansible.builtin.systemd:
+    name: "libvirtd"
+    enabled: true
+
+- name: "start libvirtd"
+  ansible.builtin.systemd:
+    name: "libvirtd"
+    state: "started"
+  register: system_extra_libvirt_start
+
+- name: "restart libvirtd"
+  ansible.builtin.systemd:
+    name: "libvirtd"
+    state: "restarted"
+  when:
+    (system_extra_libvirt_install.changed or
+    (system_extra_libvirt_zfs_driver is defined and
+    system_extra_libvirt_zfs_driver.changed)) and
+    not system_extra_libvirt_start.changed
+
+- name: "add {{ system_extra_libvirt_user_name }} to group \"libvirt\""
+  ansible.builtin.user:
+    name: "{{ system_extra_libvirt_user_name }}"
+    groups: "libvirt"
+    append: true