Compute

The Compute section allows you to create and manage Virtual Machines (VMs) within the OtterScale cluster. You can provision new instances, monitor their resource usage, and perform lifecycle management operations.

Introduction

The Compute page displays a list of all Virtual Machines. The table includes the following information:

Column	Description
Name	The name of the Virtual Machine.
Status	The current state of the VM (e.g., Running, Stopped).
Namespace	The Kubernetes namespace where the VM resides.
Machine	The physical node (machine) hosting the VM instance. Expandable: Click to view machine details.See Machine Details.
Instance Type	The hardware profile (CPU/RAM) assigned to the VM.
Disk	The storage volumes attached to the VM. Expandable: Click to view and manage individual disks. See Disk Management.
Ports	The network ports exposed by the VM. Expandable: Click to view and manage port configurations. See Port Management.
Created	The timestamp when the VM was created.
Metrics	Real-time resource usage for CPU, Memory, and Storage.
VNC	Provides a direct VNC console connection to the VM.

Manage Virtual Machines

You can create new Virtual Machines or manage existing ones using the Actions menu.

Create a New Virtual Machine

To provision a new VM:

1. Click the Create button (plus icon) at the top of the page.

2. A modal window titled “Create Virtual Machine” will appear.

3. Basic Configuration:

   • Name: Enter a unique name for the VM.
   • Namespace: Specify the namespace (defaults to default).
   • Instance Type: Select a hardware profile from the dropdown list (displays CPU cores and Memory size).
   • Data Volume: Select the bootable Data Volume (PVC) to use for the OS disk.

4. Advanced Configuration (Optional):

   • Expand the “Advanced” section to configure a Startup Script (Cloud-Init user data) for bootstrapping the instance.

5. Click Confirm to launch the Virtual Machine.

Virtual Machine Actions

The Actions menu (three dots icon) for each VM provides the following options:

Lifecycle Management

• Pause/Resume: Temporarily pause the VM execution or resume it.
• Start/Stop: Power on or power off the VM.
• Restart: Reboot the VM.

Data Management

• Snapshot: Create a point-in-time snapshot of the VM’s state and data.
• Restore: Revert the VM to a previous snapshot.

Operations

• Clone: Create a duplicate of the VM.
• Migrate: Move the VM to a different physical node in the cluster.
• Delete: Permanently remove the Virtual Machine and its associated resources.

Warning

Deleting a Virtual Machine is irreversible. Ensure you have backed up any critical data before proceeding.

Disk Management

The Disk column allows you to expand the row to view and manage the storage volumes attached to the Virtual Machine.

• View Disks: See a list of all attached disks, including their name, size, and type.
• Attach Disk: Add a new Data Volume (PVC) to the VM.
• Detach Disk: Remove an existing disk from the VM.

Port Management

The Ports column allows you to expand the row to view and manage the network ports exposed by the Virtual Machine.

• View Ports: See a list of configured ports, including the port number, protocol (TCP/UDP), and target port.
• Add Port: Expose a new port on the VM service.
• Remove Port: Close an existing port.