feat: add pve8.4 packer configs

pve/Makefile

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+#!/usr/bin/make -f
+
+include ../scripts/check.mk
+
+PACKER ?= packer
+PACKER_LOG ?= 0
+export PACKER_LOG
+
+BOOT ?= uefi
+OVMF ?= OVMF
+
+ifeq ($(wildcard /usr/share/$(OVMF)/$(OVMF)_CODE.fd),)
+	OVMF_SFX ?= _4M
+else
+	OVMF_SFX ?=
+endif
+
+.PHONY: all clean
+
+all: pve
+
+$(eval $(call check_packages_deps,cloud-image-utils ovmf,cloud-image-utils ovmf))
+
+lint:
+	packer validate .
+	packer fmt -check -diff .
+
+format:
+	packer fmt .
+
+OVMF_VARS.fd: /usr/share/${OVMF}/${OVMF}_VARS${OVMF_SFX}.fd
+	cp -v $< OVMF_VARS.fd
+
+OVMF_CODE.fd: /usr/share/${OVMF}/${OVMF}_CODE${OVMF_SFX}.fd
+	cp -v $< OVMF_CODE.fd
+
+pve: check-deps clean OVMF_CODE.fd OVMF_VARS.fd
+	${PACKER} init . && ${PACKER} build .
+
+clean:
+	${RM} -rf output-* \
+		OVMF_VARS.fd \
+		OVMF_CODE.fd

pve/README.md

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+# Proxmox Virtual Environment (PVE) Packer Templates for MAAS
+
+## Introduction
+
+The Packer templates in this directory creates pve image for use with MAAS.
+
+## Prerequisites (to create the image)
+
+* A machine running Ubuntu 18.04+ with the ability to run KVM virtual machines.
+* qemu-utils, libnbd-bin, nbdkit and fuse2fs
+* qemu-system
+* ovmf
+* cloud-image-utils
+* [Packer](https://www.packer.io/intro/getting-started/install.html), v1.7.0 or newer
+
+## Requirements (to deploy the image)
+
+* [MAAS](https://maas.io) 3.2+
+* [Curtin](https://launchpad.net/curtin) 21.0+
+* Create inside of MAAS a vmbr0 bridge with your interfaces. 
+
+## Supported Proxmox Versions
+
+The builds and deployment has been tested on MAAS 3.5.4 with Noble ephemeral images,
+in UEFI mode. The process currently works with the following PVE versions:
+
+* Proxmox Virtual Environment 8.4-1
+
+## Supported Architectures
+
+Currently amd64 (x86_64) architecture is supported.
+
+## Known Issues
+
+* After the deployment process PXE Boot directly into PVE is not working
+* Proxmox Services will not start because in /etc/hosts there is 127.0.0.1 configured for the hostname/fqdn. Please change the 127.0.0.1 to the correct ip address
+
+## pve.pkr.hcl
+
+This template builds a dd.gz image from the official Proxmox iso.
+
+### Building the image
+
+The build the image you give the template a script which has all the
+customizations:
+
+```shell
+packer init .
+packer build .
+```
+
+Using make:
+
+```shell
+make pve
+```
+
+### Custom Preseed for Proxmox
+
+As mentioned above, pve images require a custom preseed file to be present in the
+preseeds directory of MAAS region controllers. 
+
+When used snaps, the path is /var/snap/maas/current/preseeds/curtin_userdata_custom
+
+Example ready to use preesed files has been included with this repository. Please
+see curtin_userdata_custom_amd64.
+
+**Please be aware** this could potentially create a conflict with the rest of custom
+images present in your setup. To work around a conflict, it is possible to rename the
+preseed file something similar to curtin_userdata_custom_amd64_generic_pve-8-4-1 assuming
+the architecture was set to amd64/generic and the uploaded **name** was set to custom/pve-8-4-1.
+
+In other words, depending on the image name parameter used during the import, the preseed
+file(s) can be renamed to apply in a targetted manner.
+
+For more information about the preseed file naming schema, see
+[Custom node setup (Preseed)](https://github.com/CanonicalLtd/maas-docs/blob/master/en/nodes-custom.md) and
+[Preseed filenames](https://github.com/canonical/maas/blob/master/src/maasserver/preseed.py#L756).
+
+### Makefile Parameters
+
+#### PACKER_LOG
+
+Enable (1) or Disable (0) verbose packer logs. The default value is set to 0.
+
+## Uploading images to MAAS
+
+DD.GZ
+
+```shell
+maas $PROFILE boot-resources create \
+    name='custom/pve-8-4-1' \
+    title='Proxmox VE 8.4-1' \
+    architecture='amd64/generic' \
+    filetype='ddgz' \
+    content@=pve_lvm.dd.gz
+```

pve/curtin_userdata_custom_amd64

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+#cloud-config
+kernel:
+  fallback-package: proxmox-default-kernel
+  package: proxmox-default-kernel
+
+apt:
+  preserve_sources_list: true
+
+debconf_selections:
+ maas: |
+  {{for line in str(curtin_preseed).splitlines()}}
+  {{line}}
+  {{endfor}}
+
+late_commands:
+  maas: [wget, '--no-proxy', '{{node_disable_pxe_url}}', '--post-data', '{{node_disable_pxe_data}}', '-O', '/dev/null']
+  late_1: mount --bind $TARGET_MOUNT_POINT /mnt
+  late_2: grep -A2 datasource /etc/cloud/cloud.cfg.d/91_kernel_cmdline_url.cfg | sed 's/curtin//' | tee /mnt/etc/cloud/cloud.cfg.d/debian.cfg
+  late_3: sed -i 's@ubuntu.com/ubuntu@debian.org/debian@g;s@archive@deb@g;s@ubuntu@debian@g;s@Ubuntu@Debian@g;s@security.debian.org/debian@security.debian.org@g' /mnt/etc/cloud/cloud.cfg
+  late_5: debver=$(cat /mnt/etc/debian_version | awk -F. '{print $1}'); if [ ${debver} -eq 11 ]; then rel="bullseye"; elif [ ${debver} -eq 12 ]; then rel="bookworm"; elif [ ${debver} -eq 13 ]; then rel="trixie"; fi; sed -i s/stable/${rel}/g /mnt/etc/apt/sources.list;
+  late_6: sed -i '/^set -e/{n;N;d}' /mnt/etc/kernel/postinst.d/zz-update-grub
+  late_7: rm -f /usr/local/bin/dpkg-query
+  late_8: rm -f /usr/local/bin/netplan
+

pve/files/99_eni.cfg

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+system_info:
+  network:
+    renderers: ['eni']
+    activators: ['eni']

pve/files/interfaces

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+auto lo
+iface lo inet loopback
+
+auto eth0
+allow-hotplug eth0
+iface eth0 inet dhcp
+
+source /etc/network/interfaces.d/*