public async Task <Vm> Delete(string id)
{
//Implemented by stopping vm (if necessary), unregistering vm, and deleting vm folder
//This protects the base disk from deletion. When we get vvols, and a data provider
//with instance-clone of vvols, every vm will have its own disk, and we can just
//delete the vm.
await Connect();
Vm vm = _vmCache[id];
string tag = vm.Name.Tag();
_logger.LogDebug($"Delete: stopping vm {vm.Name}");
await Stop(id);
vm.State = VmPowerState.Off;
_logger.LogDebug($"Delete: unregistering vm {vm.Name}");
await _netman.Unprovision(vm.AsVim());
await _vim.UnregisterVMAsync(vm.AsVim());
string folder = vm.Path.Substring(0, vm.Path.LastIndexOf('/'));
_logger.LogDebug($"Delete: deleting vm folder {folder}");
await _vim.DeleteDatastoreFile_TaskAsync(_sic.fileManager, folder, _datacenter);
_vmCache.TryRemove(vm.Id, out vm);
await _netman.Clean(tag);
vm.Status = "initialized";
return(vm);
}