• Preparing Cloud-Init Templates
• Cloud-Init Support - Proxmox VE
• Proxmox VE Administration Guide

• create-cloud-template.sh

• Using a ready-to-use Ubuntu image
• Ubuntu 18.04 LTS (Bionic Beaver) Daily Build

wget https://cloud-images.ubuntu.com/bionic/current/bionic-server-cloudimg-amd64.img# Create a VMqm create 9000 --name ubuntu1804-templ --memory 2048 --net0 virtio,bridge=vmbr1# Import the disk in qcow2 format (as unused disk)qm importdisk 9000 bionic-server-cloudimg-amd64.imglocal -format qcow2# Attach the disk to the vm using VirtIO SCSIqmset 9000 --scsihw virtio-scsi-pci --scsi0 /var/lib/vz/images/9000/vm-9000-disk-0.qcow2# Important settingsqmset 9000 --ide2 local:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0# The initial disk is only 2GB, thus we make it largerqm resize 9000 scsi0 +30G# Using a  dhcp server on vmbr1 or use static IPqmset 9000 --ipconfig0 ip=dhcp#qm set 9000 --ipconfig0 ip=10.10.10.222/24,gw=10.10.10.1# user authentication for 'ubuntu' user (optional password)qmset 9000 --sshkey~/.ssh/id_rsa.pub#qm set 9000 --cipassword AweSomePassword# check the cloud-init configqm cloudinit dump 9000 user# create tempalte and a linked cloneqm template 9000qm clone 9000 190 --name ubuntu1804-1qm start 190rm -v bionic-server-cloudimg-amd64.img

• Login with:ssh ubuntu@10.10.10.190

• Using a ready-to-use Debian image
• Debian Official Cloud Images for OpenStack

wget https://cdimage.debian.org/cdimage/openstack/current/debian-10.0.2-20190721-openstack-amd64.qcow2# Create a VMqm create 9110 --name debian10-cloud --memory 2048 --net0 virtio,bridge=vmbr1# Import the disk in qcow2 format (as unused disk) qm importdisk 9110 debian-10.0.2-20190721-openstack-amd64.qcow2 local -format qcow2# Attach the disk to the vm using VirtIO SCSIqm set 9110 --scsihw virtio-scsi-pci --scsi0 /var/lib/vz/images/9110/vm-9110-disk-0.qcow2# Important settingsqm set 9110 --ide2 local:cloudinit --boot c --bootdisk scsi0 --serial0 socket --vga serial0# The initial disk is only 2GB, thus we make it largerqm resize 9110 scsi0 +30G# Using a  dhcp server on vmbr1 or use static IPqm set 9110 --ipconfig0 ip=dhcp#qm set 9110 --ipconfig0 ip=10.10.10.222/24,gw=10.10.10.1# user authentication for 'debian' user (optional password)qm set 9110 --sshkey ~/.ssh/id_rsa.pub#qm set 9110 --cipassword AweSomePassword# check the cloud-init configqm cloudinit dump 9110 user# create tempalte and a linked cloneqm template 9110qm clone 9110 191 --name debian10-1qm start 191rm -v debian-10.0.2-20190721-openstack-amd64.qcow2

• Login with:ssh debian@10.10.10.191

qm shutdown 190 && qm waitqm resize 190 scsi0 +8Gqm start 190

When booting undersystemd, you can disable cloud-init completely by either:

• creating a file:sudo touch /etc/cloud/cloud-init.disabled
• or addingcloud-init=disabled to the kernel command line as found in/proc/cmdline

To partially disable some functions, modify:/etc/cloud/cloud.cfg, for example to disable network configuration:

sudo su -echo"network: {config: disabled}"> /etc/cloud/cloud.cfg.d/99-disable-network-config.cfg

sudo nano /etc/default/grub config

GRUB_TERMINAL="console serial"

sudo update-grub

• Cloud-init v.18.2: CLI subcommands | Ubuntu
• Directory layout — Cloud-Init 19.2 documentation
• Testing and debugging cloud-init — Cloud-Init 19.2 documentationcloud-localds(1) — cloud-image-utils — Debian testing — Debian Manpages

https://docs.openstack.org/image-guide/convert-images.html

qemu-img convert -f raw -O qcow2 bionic-server-cloudimg-amd64.img bionic-server-cloudimg-amd64.qcow2