Add debian 12 aarch64 template

debian/cloud/aarch64/README.md

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+# Debian aarch64 cloud images
+
+## Debian 12
+
+```
+cd debian/cloud/aarch64
+packer init .
+PACKER_LOG=1 packer build \
+  -var-file debian-12-aarch64.pkrvars.hcl \
+  debian.pkr.hcl
+```
+
+```
+
+$ sudo qemu-img convert \
+    -f qcow2 \
+    -O qcow2 \
+    output-debian-12-aarch64/debian-12-aarch64.qcow2 \
+    /var/lib/libvirt/images/debian-12-aarch64.qcow2
+$ sudo qemu-img resize \
+    -f qcow2 \
+    /var/lib/libvirt/images/debian-12-aarch64.qcow2 \
+    32G
+```
+
+```
+$ sudo apt-get install libosinfo-bin
+$ osinfo-query os
+```
+
+```
+virt-install \
+  --connect qemu:///system \
+  --name debian-12 \
+  --boot uefi \
+  --memory 4096 \
+  --vcpus 2 \
+  --os-variant debian10 \
+  --disk /var/lib/libvirt/images/debian-12-aarch64.qcow2,bus=virtio \
+  --network network=host-network,model=virtio \
+  --noautoconsole \
+  --console pty,target_type=serial \
+  --import \
+  --debug
+
+virsh console debian-12
+
+# login with packer user
+
+# Check networking - you may notice that the network interface is down and
+# the name of the interface generated in netplan doesn't match. If not 
+# correct, can regenerate with cloud-init
+# ip reports that enp1s0 is down
+$ ip --brief a
+lo               UNKNOWN        127.0.0.1/8 ::1/128 
+enp1s0           UP             10.63.34.169/22 metric 100 fe80::5054:ff:fee1:b969/64
+
+# Check to make sure cloud-init is greater than 23.4
+$ cloud-init --version
+/usr/bin/cloud-init 22.4.2
+
+# NOTE: Because Ubuntu 20.04 has a version of cloud-init earlier than 23.4
+# it does not have the "clean" parameter, instead regenerate the netplan
+# config with the following
+
+# Make cloud-init regenerate the network configuration
+sudo rm /var/lib/cloud/data/instance-id
+sudo cloud-init init --local
+
+$ sudo reboot
+
+# Verify image boots with the networking enabled
+$ ip --brief a
+lo               UNKNOWN        127.0.0.1/8 ::1/128 
+enp1s0           UP             10.63.46.11/22 metric 100 fe80::5054:ff:fe04:483/64
+
+
+$ cloud-init status
+status: done
+
+# Disable cloud-init
+$ sudo touch /etc/cloud/cloud-init.disabled
+
+# Verify cloud-init is disabled
+$ cloud-init status
+status: disabled
+```
+
+```
+$ virsh shutdown debian-12
+$ virsh undefine debian-12 --nvram --remove-all-storage
+```

debian/cloud/aarch64/debian-12-aarch64.pkrvars.hcl

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+iso_checksum = "file:https://cloud.debian.org/images/cloud/bookworm/latest/SHA512SUMS"
+iso_url = "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-arm64.qcow2"
+vm_name = "debian-12-aarch64"

debian/cloud/aarch64/debian.pkr.hcl

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+packer {
+  required_plugins {
+    qemu = {
+      version = "~> 1"
+      source  = "github.com/hashicorp/qemu"
+    }
+  }
+}
+
+variable "efi_boot" {
+  type    = bool
+  default = false
+}
+
+variable "efi_firmware_code" {
+  type    = string
+  default = null
+}
+
+variable "efi_firmware_vars" {
+  type    = string
+  default = null
+}
+
+variable "ssh_username" {
+  type    = string
+  default = "packer"
+}
+
+variable "ssh_password" {
+  type    = string
+  default = "packer"
+}
+
+variable "vm_name" {
+  type    = string
+  default = "debian-12-aarch64"
+}
+
+source "file" "user_data" {
+  content = <<EOF
+#cloud-config
+user: ${var.ssh_username}
+password: ${var.ssh_password}
+chpasswd: { expire: False }
+ssh_pwauth: True
+EOF
+  target  = "boot-${var.vm_name}/user-data"
+}
+
+source "file" "meta_data" {
+  content = <<EOF
+instance-id: debian-cloud
+local-hostname: debian-cloud
+EOF
+  target  = "boot-${var.vm_name}/meta-data"
+}
+
+build {
+  sources = ["sources.file.user_data", "sources.file.meta_data"]
+
+  provisioner "shell-local" {
+    inline = ["genisoimage -output boot-${var.vm_name}/cidata.iso -input-charset utf-8 -volid cidata -joliet -r boot-${var.vm_name}/user-data boot-${var.vm_name}/meta-data"]
+  }
+}
+
+variable "iso_checksum" {
+  type    = string
+  default = "file:https://cloud.debian.org/images/cloud/bookworm/latest/SHA512SUMS"
+}
+
+variable "iso_url" {
+  type    = string
+  default = "https://cloud.debian.org/images/cloud/bookworm/latest/debian-12-generic-arm64.qcow2"
+}
+
+source "qemu" "debian" {
+  disk_compression = true
+  disk_image       = true
+  disk_size        = "32G"
+  format           = "qcow2"
+  iso_checksum     = var.iso_checksum
+  iso_url          = var.iso_url
+  qemu_binary      = "qemu-system-aarch64"
+  qemuargs = [
+    ["-cdrom", "boot-${var.vm_name}/cidata.iso"],
+    ["-cpu", "max"],
+    ["-boot", "strict=on"],
+    ["-monitor", "none"],
+    /* ["-device", "virtio-gpu-pci"], */
+  ]
+  output_directory  = "output-${var.vm_name}"
+  shutdown_command  = "echo '${var.ssh_password}' | sudo -S shutdown -P now"
+  ssh_password      = var.ssh_password
+  ssh_timeout       = "120s"
+  ssh_username      = var.ssh_username
+  vm_name           = "${var.vm_name}.qcow2"
+  machine_type      = "virt,gic-version=max"
+  net_device        = "virtio-net"
+  disk_interface    = "virtio"
+  efi_boot          = var.efi_boot
+  efi_firmware_code = "/usr/share/AAVMF/AAVMF_CODE.fd"
+  efi_firmware_vars = "/usr/share/AAVMF/AAVMF_VARS.fd"
+}
+
+build {
+  sources = ["source.qemu.debian"]
+
+  # cloud-init may still be running when we start executing scripts
+  # To avoid race conditions, make sure cloud-init is done first
+  provisioner "shell" {
+    execute_command   = "echo '${var.ssh_password}' | {{ .Vars }} sudo -S -E sh -eux '{{ .Path }}'"
+    scripts = [
+      "../scripts/cloud-init-wait.sh",
+    ]
+  }
+}