These utils are meant to be run directly from a proxmox host.
- libguestfs-tools
- wget
- ensure qemu-guest-agent is baked into the image (avoid installing with cloud-init)
- disable full updates of all packages on boot if possible
- support disk resizing every boot
- disable crazy nic names
- do not bake docker into the image
- take care to properly deal with resolv.conf
- support basic network storage systems with sane default (iscsi, multipath, nfs)