add vm_destroy playbook and role

correct network addressing in template
write hostname to /etc/hostname

ansible/roles/vm_destroy/defaults/main.yml

@@ -0,0 +1,27 @@
+---
+vm_name_prefix: "kube"
+vm_name_suffixes: ["01","02","03"]
+vhd_template: "arch_template_vda.qcow2"
+root_vhd_pool_dir: "/vhds/root" # No trailing /
+firmware_vhd_pool_dir: "/vhds/firmware" # No trailing /
+containers_vhd_pool_dir: "/vhds/containers" # No trailing /
+data_nvme_vhd_pool_dir: "/vhds/data_nvme" # No trailing /
+data_hdd_vhd_pool_dir: "/vhds/data_hdd" # No trailing /
+vm_memory: "16"
+vm_cpu: "4"
+vm_cpu_cores: "2"
+vm_cpu_threads: "2"
+vm_bridge: "br1"
+vm_mac_prefix: "52:54:00:e3:af:"
+vm_subnet_prefix: "192.168.199.1" # vm suffix will be appended to this
+vm_subnet_suffix: "/24"
+vm_gateway: "192.168.199.254"
+vm_ntp: "192.168.199.254"
+vm_domain: "balsillie.net"
+vm_machine_type: "pc-q35-7.1"
+vm_machine_arch: "x86_64"
+containers_vhd_size: "64G"
+data_nvme_vhd_size: "64G"
+data_hdd_vhd_size: "3T"
+delete_root_vhd: true
+delete_data_vhd: false

ansible/roles/vm_destroy/tasks/destroy.yaml

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+---
+- name: set vm_name
+  ansible.builtin.set_fact:
+    vm_name: "{{ vm_name_prefix }}{{ vm_number }}"
+
+- name: debug vm_name
+  ansible.builtin.debug:
+    msg:
+      - "VM name is {{ vm_name }}"
+
+- name: list vms
+  community.libvirt.virt:
+    command: list_vms
+  register: vm_list
+
+- name: debug vm list
+  ansible.builtin.debug:
+    var: vm_list.list_vms
+
+- name: proceed if vm exists
+  when: vm_name in vm_list.list_vms
+  block:
+
+  - name: stop the vm
+    community.libvirt.virt:
+      state: shutdown
+      name: "{{ vm_name }}"
+
+  - name: destroy the vm
+    community.libvirt.virt:
+      state: destroyed
+      name: "{{ vm_name }}"
+
+  - name: delete the root vhd
+    when: delete_root_vhd
+    ansible.builtin.file:
+      path: "{{ root_vhd_pool_dir }}/{{ vm_name }}_vda.qcow2"
+      state: absent
+
+  - name: delete the data vhds
+    when: delete_data_vhd
+    ansible.builtin.file:
+      path: "{{ item }}"
+      state: absent
+    with_items: 
+      - "{{ containers_vhd_pool_dir }}/{{ vm_name }}_vdb.qcow2"
+      - "{{ data_nvme_vhd_pool_dir }}/{{ vm_name }}_vdc.qcow2"
+      - "{{ data_hdd_vhd_pool_dir }}/{{ vm_name }}_vdd.qcow2"

ansible/roles/vm_destroy/tasks/main.yaml

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+---
+- name: create k8s vms
+  with_items: "{{ vm_name_suffixes }}"
+  loop_control:
+    loop_var: vm_number
+  ansible.builtin.include_tasks: destroy.yaml