Proxmox VM Template Creation Script for Ubuntu 25 Cloud Image

create-vm-template-ubuntu-cloud-image.sh

# This creates a reusable VM template that can be cloned for quick deployments.

# Create a new VM with ID 900 and basic configuration
qm create 900 \
  --name 'ubuntu-server-25-cloud' \
  --memory 2048 \
  --cores 2 \
  --net0 virtio,bridge=vmbr0

# Import the cloud image disk into the local-lvm storage
# Replace "plucky-server-cloudimg-amd64.img" with your actual cloud image file.
qm importdisk 900 /var/lib/vz/template/iso/plucky-server-cloudimg-amd64.img local-lvm

# Attach the imported disk as a SCSI drive and enable SSD emulation
qm set 900 --scsihw virtio-scsi-pci \
  --scsi0 local-lvm:vm-900-disk-0,ssd=1

# Resize the disk by an additional 10GB
qm disk resize 900 scsi0 +10G

# Configure the VM to boot from the SCSI disk
qm set 900 \
  --boot c \
  --bootdisk scsi0

# Add a Cloud-Init drive for configuration
qm set 900 --ide2 local-lvm:cloudinit

# Enable serial console and use it as the display
qm set 900 \
  --serial0 socket \
  --vga serial0

# Set the operating system type to Linux 2.6/3.x/4.x/5.x (generic)
qm set 900 --ostype l26

# Enable DHCP networking on the first interface
qm set 900 --ipconfig0 ip=dhcp

# Set default Cloud-Init credentials
# The --cipassword should be replaced with a secure password or consider using SSH keys.
qm set 900 \
  --ciuser ubuntu \
  --cipassword 'qwerty'

# Convert the VM to a template
qm template 900

# Post-Cloning Recommendation
# After cloning this template, log in to the VM and install the QEMU Guest Agent to enable enhanced VM management features (e.g., IP reporting, graceful shutdown, etc.):
# sudo apt install -y qemu-guest-agent
# Then, in the Proxmox web UI, go to the cloned VM’s Options tab and set QEMU Guest Agent: Enabled.