Provision a Proxmox VM template from an Ubuntu cloud image

provision-proxmox-template.sh

#!/bin/bash

# https://gist.github.com/talarczykco/d4cfc9188a061f68880ee5b630a4aeb6
# https://pve.proxmox.com/wiki/Cloud-Init_Support

set -ex

IMGURL=https://cloud-images.ubuntu.com/jammy/current/jammy-server-cloudimg-amd64.img
IMGDIR=etc
IMGFILE=$(basename $IMGURL)

VMID=9001

if ! test -f $IMGDIR/$IMGFILE; then
    (cd $IMGDIR && wget --no-clobber $IMGURL)
    virt-customize -a $IMGDIR/$IMGFILE --install qemu-guest-agent
fi

qm destroy $VMID

qm create $VMID

qm importdisk $VMID $IMGDIR/$IMGFILE local-lvm

qm set $VMID \
  --agent enabled=1 \
  --boot c \
  --bootdisk scsi0 \
  --cores 2 \
  --ide2 local-lvm:cloudinit \
  --memory 2048 \
  --name ${IMGFILE%%.img}.tpl \
  --net0 virtio,bridge=vmbr0 \
  --scsi0 local-lvm:vm-$VMID-disk-0 \
  --scsihw virtio-scsi-pci \
  --serial0 socket \
  --vga serial0

qm template $VMID