Error creating VM's when initially the resources were unavailable.

[dxlbnl]

So I've seen errors creating VM's when initally the vm's couldn't be scheduled due to a full storage pool.
When that issue was resolved the vm's couldn't be scheduled due to the pre-create check failing to get the ssh keys

Fix should be in this function:

docker-machine-driver-nerdalize/nerdalize.go

Lines 656 to 671 in d3c0d3f

	func (d *Driver) checkKeyPair() error {
	cs := d.getClient()
	log.Infof("Checking if SSH key pair (%v) already exists...", d.SSHKeyPair)
	p := cs.SSH.NewListSSHKeyPairsParams()
	p.SetName(d.SSHKeyPair)
	res, err := cs.SSH.ListSSHKeyPairs(p)
	if err != nil {
	return err
	}
	if res.Count > 0 {
	return fmt.Errorf("SSH key pair (%v) already exists.", d.SSHKeyPair)
	}
	return nil
	}