// Attaches given cinder volume to the compute running kubelet
func (rs *Rackspace) AttachDisk(instanceID string, diskName string) (string, error) {
disk, err := rs.getVolume(diskName)
if err != nil {
return "", err
}
compute, err := rs.getComputeClient()
if err != nil {
return "", err
}
if len(disk.Attachments) > 0 {
if instanceID == disk.Attachments[0]["server_id"] {
glog.V(4).Infof("Disk: %q is already attached to compute: %q", diskName, instanceID)
return disk.ID, nil
}
errMsg := fmt.Sprintf("Disk %q is attached to a different compute: %q, should be detached before proceeding", diskName, disk.Attachments[0]["server_id"])
glog.Errorf(errMsg)
return "", errors.New(errMsg)
}
_, err = volumeattach.Create(compute, instanceID, &osvolumeattach.CreateOpts{
VolumeID: disk.ID,
}).Extract()
if err != nil {
glog.Errorf("Failed to attach %s volume to %s compute", diskName, instanceID)
return "", err
}
glog.V(2).Infof("Successfully attached %s volume to %s compute", diskName, instanceID)
return disk.ID, nil
}
func createVolumeAttachment(t *testing.T, computeClient *gophercloud.ServiceClient, blockClient *gophercloud.ServiceClient, serverID string, volumeID string) {
va, err := volumeattach.Create(computeClient, serverID, &osVolumeAttach.CreateOpts{
VolumeID: volumeID,
}).Extract()
th.AssertNoErr(t, err)
defer func() {
err = osVolumes.WaitForStatus(blockClient, volumeID, "in-use", 60)
th.AssertNoErr(t, err)
err = volumeattach.Delete(computeClient, serverID, va.ID).ExtractErr()
th.AssertNoErr(t, err)
err = osVolumes.WaitForStatus(blockClient, volumeID, "available", 60)
th.AssertNoErr(t, err)
}()
t.Logf("Attached volume to server: %+v", va)
}