Nutanix - Updating a Golden Image

It is essential that each Golden Image registration uses a unique machine name (computer name or host name). If a Golden Image is already registered with a specific machine name, any subsequent attempt to register another image with the same name will be rejected by the Connection Server.

A Golden Image registration in the Horizon ADAM Database (LDAP) utilizes a logical pair of:

• Machine name (serves as the primary key, must be unique)

• Pairing key

Registration Rules

• Every pool change requires a new Nutanix Template for image push.

• Every agent change requires a new Golden Image registration.

• Every new Golden Image registration requires a new machine name (computer name or host name).

Golden Image Registration Use Cases

The following examples provide use cases for registering golden images.

Create the Initial Pool

1. Create a Golden Image Virtual Machine (VM). For more information, see Preparing a Golden Image - Nutanix.

2. Install the Horizon Agent. This registers the Golden Image with the Horizon Connection Server.

3. Install applications and updates.

4. Power off the VM.

5. Create a Nutanix Template. For more information, see Preparing a Golden Image - Nutanix.

6. Create the pool. For more information, see Pool Deployment - Nutanix.

Update Applications/Windows Updates (No Agent Change)

1. Power on the original Golden Image.

2. Install applications and updates.

3. Power off the VM.

4. Create a new Nutanix Template. For more information, see Preparing a Golden Image - Nutanix.

5. Push the image to the pool.

   Note: No new Golden Image registration is needed (pairing key remains unchanged).

Update the Agent Feature Set or Upgrade Agent

1. Power on the original Golden Image (or clone a new VM from the template for the Golden Image).

2. Change the machine name (computer name or host name) (required for new registration).

3. Modify the Horizon Agent installation (add/remove features, upgrade, or reinstall). This results in a new, unique Golden Image registration with Horizon Connection Server.

4. Install applications and updates.

5. Power off the VM.

6. Create a new Nutanix Template. For more information, see Preparing a Golden Image - Nutanix.

7. Push the image to the pool.

   Note: A new Golden Image registration is required because the pairing key has changed.