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Creating a Custom Image in Nuvion

Overview​

A custom image allows you to create new virtual machines with a pre-configured environment.

This is useful when you need to reuse a specific configuration multiple times, such as:

  • Pre-organized directory structures
  • Manually installed packages
  • Specific system configurations

Instead of repeating the entire setup every time you create a new VM, you can generate a snapshot-based image, enabling quick reuse of that environment.

info

Custom images work as virtual machine templates, allowing you to create new VMs with pre-prepared configurations.

Difference Between Snapshot and Image​

Although related concepts, snapshots and images serve different purposes.

SnapshotImage
Represents a restore point of a volumeFunctions as a template for new VMs
Used to recover the previous state of a volumeUsed to create new virtual machines
Usually linked to the original volumeCan be reused across multiple VMs
tip

Snapshots are ideal for recovery and rollback, while images are ideal for standardization and fast virtual machine deployment.

Creating an Image from a Snapshot​

To create a custom image, follow the steps below.

1. Access the volumes​

In the platform panel, go to:

Volumes

Select the desired volume.

Acessar volumes

2. Access the volume snapshots​

After selecting the volume, open the tab:

Snapshots

Locate the snapshot you want to use to generate the image.

Lista de snapshots

3. Create the image​

Click the options menu (three dots).

Menu opcoes volume

Create image

Menu snapshot

4. Define the image name​

Enter the desired name for the new image and confirm the creation.

Criar imagem

After this process, the image will be available to use when creating new virtual machines.

Using the Custom Image​

After creating the image, it can be used when creating new VMs.

1. Create a new virtual machine​

Go to:

Virtual Machines

Click Create virtual machine.

2. Select deploy from image​

During the VM creation, select the option:

Image

Deploy imagem

3. Choose the created image​

From the list of available images, select the custom image created earlier.

The new virtual machine will start with the same content present in the snapshot used to generate the image.

Selecionar imagem

Best Practices​

  • Use custom images for environments that need to be recreated frequently
  • Create images after fully configuring the desired environment
  • Use descriptive names to make image identification easier
  • Combine the use of snapshots and images for greater flexibility in VM management
tip

Keeping images updated makes it easier to create new machines with standardized and ready-to-use configurations.