Create Virtual Machine from a template: Difference between revisions

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Created page with "==Introduction== This is not a deep dive in to ansible or similar but a simple quick and dirty guide to creating a new VM from a template and configuring some of the networking with cloud init. ==qm clone== To create a new host from your template with the specified IP address, gateway, DNS server, and search domain, you can use the Proxmox command-line interface (CLI) with the qm clone command and appropriate Cloud-Init parameters. Here's how you can do it: Using t..."
 
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Using the qm clone Command:
Using the qm clone Command:
qm clone <template_vmid> <new_vmid> --name <new_hostname> --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local
'''Explanation:'''
qm clone <template_vmid> <new_vmid>:
This is the base command to clone a VM.
* Replace <template_vmid> with the ID of your template VM.
* Replace <new_vmid> with the desired ID for the new VM.
* --name <new_hostname>:
* Replace <new_hostname> with the desired hostname for the new VM.
* --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1":
* This sets the IPv4 configuration for the first network interface (eth0 or similar).
* ip=192.168.100.26/24 sets the IP address and netmask.
* gw=192.168.100.1 sets the gateway address.
* --nameserver 192.168.110.11:
* This sets the DNS server address.
* --searchdomain seaoffate.local:
This sets the search domain.


Bash


qm clone <template_vmid> <new_vmid> --name <new_hostname> --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local
'''Example:'''
Explanation:
 
qm clone <template_vmid> <new_vmid>:
This is the base command to clone a VM.
Replace <template_vmid> with the ID of your template VM.
Replace <new_vmid> with the desired ID for the new VM.
--name <new_hostname>:
Replace <new_hostname> with the desired hostname for the new VM.
--ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1":
This sets the IPv4 configuration for the first network interface (eth0 or similar).
ip=192.168.100.26/24 sets the IP address and netmask.
gw=192.168.100.1 sets the gateway address.
--nameserver 192.168.110.11:
This sets the DNS server address.
--searchdomain seaoffate.local:
This sets the search domain.
Example:


If your template VM ID is 100, and you want to create a new VM with ID 101 and hostname "newhost," the command would be:
If your template VM ID is 100, and you want to create a new VM with ID 101 and hostname "newhost," the command would be:
Line 37: Line 35:
Bash
Bash


qm clone 100 101 --name newhost --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local
qm clone 100 101 --name newhost --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local
Important Notes:
'''Important Notes:'''
 
* Cloud-Init: This command assumes that your template VM has Cloud-Init installed and configured.
Cloud-Init: This command assumes that your template VM has Cloud-Init installed and configured.
* Network Interface Name: The network interface name might vary. If your VM uses a different interface name (e.g., ens3), you might need to adjust the Cloud-Init configuration accordingly.
Network Interface Name: The network interface name might vary. If your VM uses a different interface name (e.g., ens3), you might need to adjust the Cloud-Init configuration accordingly.
* Testing: After creating the new VM, verify that the IP address, gateway, DNS server, and search domain are correctly configured.
Testing: After creating the new VM, verify that the IP address, gateway, DNS server, and search domain are correctly configured.
* Proxmox User Permissions: The user running this command must have sufficient permissions to create VMs.
Proxmox User Permissions: The user running this command must have sufficient permissions to create VMs.
* Firewall: Ensure that your firewall allows network traffic to and from the new VM.
Firewall: Ensure that your firewall allows network traffic to and from the new VM.
*DHCP: Make sure that the IP address does not conflict with any IP addresses assigned by a DHCP server.
DHCP: Make sure that the IP address does not conflict with any IP addresses assigned by a DHCP server.
By using this command, you can easily create new VMs from your template with the desired network configuration.
By using this command, you can easily create new VMs from your template with the desired network configuration.

Revision as of 06:26, 13 March 2025

Introduction

This is not a deep dive in to ansible or similar but a simple quick and dirty guide to creating a new VM from a template and configuring some of the networking with cloud init.


qm clone

To create a new host from your template with the specified IP address, gateway, DNS server, and search domain, you can use the Proxmox command-line interface (CLI) with the qm clone command and appropriate Cloud-Init parameters.

Here's how you can do it:

Using the qm clone Command: 

qm clone <template_vmid> <new_vmid> --name <new_hostname> --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local

Explanation: 

qm clone <template_vmid> <new_vmid>:

This is the base command to clone a VM.

  • Replace <template_vmid> with the ID of your template VM.
  • Replace <new_vmid> with the desired ID for the new VM.
  • --name <new_hostname>:
  • Replace <new_hostname> with the desired hostname for the new VM.
  • --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1":
  • This sets the IPv4 configuration for the first network interface (eth0 or similar).
  • ip=192.168.100.26/24 sets the IP address and netmask.
  • gw=192.168.100.1 sets the gateway address.
  • --nameserver 192.168.110.11:
  • This sets the DNS server address.
  • --searchdomain seaoffate.local:

This sets the search domain.


Example:

If your template VM ID is 100, and you want to create a new VM with ID 101 and hostname "newhost," the command would be:

Bash 

qm clone 100 101 --name newhost --ipconfig0 "ip=192.168.100.26/24,gw=192.168.100.1" --nameserver 192.168.110.11 --searchdomain seaoffate.local

Important Notes:

  • Cloud-Init: This command assumes that your template VM has Cloud-Init installed and configured.
  • Network Interface Name: The network interface name might vary. If your VM uses a different interface name (e.g., ens3), you might need to adjust the Cloud-Init configuration accordingly.
  • Testing: After creating the new VM, verify that the IP address, gateway, DNS server, and search domain are correctly configured.
  • Proxmox User Permissions: The user running this command must have sufficient permissions to create VMs.
  • Firewall: Ensure that your firewall allows network traffic to and from the new VM.
  • DHCP: Make sure that the IP address does not conflict with any IP addresses assigned by a DHCP server.

By using this command, you can easily create new VMs from your template with the desired network configuration.

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