How to remove virtual machine from Hyper-V cluster?

Question

There is a cluster node on which I create virtual machine:

After that I use method AddVirtualMachine to add existing virtual machine to cluster.

But there is no corresponding method DeleteVirtualMachine.

If I simply remove virtual machine from a Node, then the following artefact is left on a cluster:

How can I remove my virtual machine from Hyper-V cluster via WMI?

Answer 1

I have decompiled Microsoft.FailoverClusters.PowerShell.dll and found out that we need to use the WMI class MSCluster_ResourceGroup.

This is how it can be done via powershell:

(Get-WmiObject -namespace root\mscluster -class MsCluster_ResourceGroup -filter "name='vm-name'").DestroyGroup()

Here is object model for MSCluster_ResourceGroup that I use in C# code:

public class MsResourceGroup : ManagementObjectWrapperBase
{
    public static MsResourceGroup Create(
        ManagementObject fromResourceGroupManagementObject)
    {
        var name = fromResourceGroupManagementObject.GetStringPropertyValue("Name");

        return new MsResourceGroup(
            name: name,
            resourceGroupManagementObject: fromResourceGroupManagementObject);
    }

    private MsResourceGroup(
        string name,
        ManagementObject resourceGroupManagementObject)
        : base(resourceGroupManagementObject)
    {
        Name = name;
    }

    public string Name { get; }

    public void DestroyGroup()
    {
        AsManagementObject.Invoke(
            methodName: "DestroyGroup",
            fillInvocationParameters: inputParameters => { });
    }
}