Create an Azure Cobalt 100 Arm64 virtual machine for DevStack

You can create an Arm-based Cobalt 100 virtual machine (VM) in the following ways, depending on your workflow and requirements:

• The Azure portal
• The Azure CLI
• An infrastructure as code (IaC) tool

In this section, you’ll use the Azure Portal to create a virtual machine with the Arm-based Azure Cobalt 100 processor.

This Learning Path focuses on general-purpose virtual machines in the Dpsv6 series. For more information, see the Microsoft Azure guide for the Dpsv6 size series .

The steps to create this instance are included here for convenience. For more detailed steps, see the Deploy a Cobalt 100 virtual machine on Azure Learning Path .

Create an Arm-based Azure virtual machine on Azure portal

To create an Azure virtual machine:

1. Open the Azure portal and navigate to Virtual Machines.
2. Click Create, and click Virtual Machine from the drop-down list.
3. Inside the Basic tab, fill in the instance details such as Virtual machine name and Region.
4. Select the image for your virtual machine (for example, Ubuntu Pro 24.04 LTS) and select Arm64 as the VM architecture.
5. In the Size field, select See all sizes and select the D-Series v6 family of virtual machines.
6. Select D4ps_v6 from the list as shown in the following screenshot:

Select D4ps_v6 from the D-Series v6 family

7. For Authentication type, select SSH public key.

8. Fill in the Administrator username for your VM.
9. Select Generate new key pair, and select RSA SSH Format as the SSH Key Type.

10. Give your SSH key a key pair name.
11. In the Inbound port rules, select HTTP (80) and SSH (22) as the inbound ports, as shown in the following screenshot:

Configure inbound port rules for HTTP and SSH access

12. Now select the Review + Create tab and review the configuration for your virtual machine. It should look like the following:

Review VM configuration before creation

13. After reviewing your configuration, click the Create button and then the Download Private key and Create Resource button.

Download SSH key and create the virtual machine

Your virtual machine should be ready and running in a few minutes. You can SSH into the virtual machine using the private key, along with the public IP details.

Successful VM deployment confirmation

What you’ve accomplished and what’s next

In this section, you created an Azure Cobalt 100 Arm-based virtual machine using Ubuntu Pro 24.04 LTS on a D4ps_v6 instance. This VM is your DevStack deployment target — a single-network interface instance with at least 80 GB of disk.

In the next section, you’ll deploy OpenStack on this VM using DevStack. After that, you’ll create a second VM with additional networking and storage for the Kolla-Ansible deployment.