Ubuntu Cloud Image

Nouvelle #iteration du Projet GH-271 - Installer Proxmox sur mon serveur NUC Intel i3-5010U, 8Go de Ram.

J'ai eu des difficultés à trouver comment déployer avec Proxmox des Virtual instance basées sur Ubuntu Cloud Image.

J'ai trouvé réponse à mes questions dans cet article : "Perfect Proxmox Template with Cloud Image and Cloud Init".
Mais depuis, j'ai trouvé un meilleur tutoriel : "Linux VM Templates in Proxmox on EASY MODE using Prebuilt Cloud Init Images!".

Création d'un template Ubuntu LTS

J'ai exécuté les commandes suivantes en SSH sur mon serveur NUC i3 pour créer un template de VM Proxmox.

root@nuci3:~# apt update -y && apt install libguestfs-tools jq -y

root@nuci3:~# wget https://cloud-images.ubuntu.com/noble/current/noble-server-cloudimg-amd64.img

Ancienne commande qui contient une erreur à ne pas utilisé, plus d'information dans la note 2024-12-23_1939 :

root@nuci3:~# virt-customize -a noble-server-cloudimg-amd64.img --install qemu-guest-agent --run-command 'systemctl enable qemu-guest-agent.service'

root@nuci3:~# virt-sysprep -a noble-server-cloudimg-amd64.img --network --install qemu-guest-agent --run-command 'systemctl enable qemu-guest-agent.service'
root@nuci3:~# virt-sysprep --operation machine-id -a noble-server-cloudimg-amd64.img

root@nuci3:~# qm create 8000 --memory 2048 --core 2 --name ubuntu-cloud-template --net0 virtio,bridge=vmbr0

root@nuci3:~# qm disk import 8000 noble-server-cloudimg-amd64.img local-lvm
transferred 3.5 GiB of 3.5 GiB (100.00%)
transferred 3.5 GiB of 3.5 GiB (100.00%)
Successfully imported disk as 'unused0:local-lvm:vm-8000-disk-0'
root@nuci3:~# rm noble-server-cloudimg-amd64.img

root@nuci3:~# qm set 8000 --scsihw virtio-scsi-pci --scsi0 local-lvm:vm-8000-disk-0
update VM 8000: -scsi0 local-lvm:vm-8000-disk-0 -scsihw virtio-scsi-pci

root@nuci3:~# qm set 8000 --ide2 local-lvm:cloudinit
update VM 8000: -ide2 local:cloudinit
Formatting '/var/lib/vz/images/8000/vm-8000-cloudinit.qcow2', fmt=qcow2 cluster_size=65536 extended_l2=off preallocation=metadata compression_type=zlib size=4194304 lazy_refcounts=off refcount_bits=16
ide2: successfully created disk 'local:8000/vm-8000-cloudinit.qcow2,media=cdrom'
generating cloud-init ISO

(liste des paramètres cloud-init)

root@nuci3:~# qm set 8000 --ipconfig0 "ip6=auto,ip=dhcp"

root@nuci3:~# qm set 8000 --sshkeys ~/.ssh/authorized_keys

root@nuci3:~# qm set 8000 --ciuser stephane
root@nuci3:~# qm set 8000 --cipassword password # optionnel, seulement en phase de debug

root@nuci3:~# qm set 8000 --boot c --bootdisk scsi0
update VM 8000: -boot c -bootdisk scsi0

root@nuci3:~# qm set 8000 --serial0 socket --vga serial0
update VM 8000: -serial0 socket -vga serial0

root@nuci3:~# qm set 8000 --agent enabled=1

root@nuci3:~# qm set 8000 --ciupgrade 0

root@nuci3:~# qm template 8000
  Renamed "vm-8000-disk-0" to "base-8000-disk-0" in volume group "pve"
  Logical volume pve/base-8000-disk-0 changed.
  WARNING: Combining activation change with other commands is not advised.

Création d'une Virtual Instance

root@nuci3:~# qm clone 8000 100 --name server1

root@nuci3:~# qm start 100

root@nuci3:~# qm guest cmd 100 network-get-interfaces | jq -r '.[] | select(.name == "eth0") | .["ip-addresses"][0] | .["ip-address"]'
192.168.1.64

$ ssh stephane@192.168.1.64
The authenticity of host '192.168.1.64 (192.168.1.64)' can't be established.
ED25519 key fingerprint is SHA256:OJHcY3GHOsm3I4qcsYFc6V4qePNxVS4iAOBsDjeLM7o.
This key is not known by any other names.
Are you sure you want to continue connecting (yes/no/[fingerprint])? yes
Warning: Permanently added '192.168.1.64' (ED25519) to the list of known hosts.
Welcome to Ubuntu 24.04.1 LTS (GNU/Linux 6.8.0-45-generic x86_64)
...