func TestVolumeReserve(t *testing.T) {
client, err := newClient(t)
th.AssertNoErr(t, err)
t.Logf("Creating volume")
cv, err := volumes.Create(client, &volumes.CreateOpts{
Size: 1,
Name: "blockv2-volume",
}).Extract()
th.AssertNoErr(t, err)
defer func() {
err = volumes.WaitForStatus(client, cv.ID, "available", 60)
th.AssertNoErr(t, err)
t.Logf("Deleting volume")
err = volumes.Delete(client, cv.ID).ExtractErr()
th.AssertNoErr(t, err)
}()
err = volumes.WaitForStatus(client, cv.ID, "available", 60)
th.AssertNoErr(t, err)
t.Logf("Reserving volume")
err = volumeactions.Reserve(client, cv.ID).ExtractErr()
th.AssertNoErr(t, err)
err = volumes.WaitForStatus(client, cv.ID, "attaching", 60)
th.AssertNoErr(t, err)
t.Logf("Unreserving volume")
err = volumeactions.Unreserve(client, cv.ID).ExtractErr()
th.AssertNoErr(t, err)
err = volumes.WaitForStatus(client, cv.ID, "available", 60)
th.AssertNoErr(t, err)
}
func (d CinderDriver) Unmount(r volume.Request) volume.Response {
log.Infof("Unmounting volume: %+v", r)
d.Mutex.Lock()
defer d.Mutex.Unlock()
vol, err := d.getByName(r.Name)
if vol.ID == "" {
log.Errorf("Request to Unmount failed because volume `%s` could not be found", r.Name)
err := errors.New("Volume Not Found")
return volume.Response{Err: err.Error()}
}
if err != nil {
log.Errorf("Failed to retrieve volume named: `", r.Name, "` during Unmount operation", err)
return volume.Response{Err: err.Error()}
}
if umountErr := Umount(d.Conf.MountPoint + "/" + r.Name); umountErr != nil {
if umountErr.Error() == "Volume is not mounted" {
log.Warning("Request to unmount volume, but it's not mounted")
return volume.Response{}
} else {
return volume.Response{Err: umountErr.Error()}
}
}
// NOTE(jdg): So there's a couple issues with how Docker works here. If
// you are trying to attach and it fails, it kindly goes through and does
// an Unmount to clean up anything that went bad, BUT that creates a
// problem here. Say for example you try to attach an in-use volume, we
// don't want to rip that out from under wherever it's currently being used
// NOTE(jdg): Don't rely on things like `df --output=source mounpoint`
// that's no good for error situations.
tgt, portal := getTgtInfo(vol)
iscsiDetachVolume(tgt, portal)
log.Debug("Terminate Connection")
iface := d.Conf.InitiatorIFace
netDev, _ := net.InterfaceByName(iface)
IPs, _ := net.InterfaceAddrs()
log.Debugf("iface: %+v\n Addrs: %+v", netDev, IPs)
initiators, err := GetInitiatorIqns()
if err != nil {
log.Error("Failed to retrieve Initiator name!")
return volume.Response{Err: err.Error()}
}
hostname, _ := os.Hostname()
// TODO(ebalduf): Change assumption that we have only one Initiator defined
// TODO(jdg): For now we're only supporting linux, but in the future we'll
// need to get rid of the hard coded Platform/OSType and fix this up for
// things like say Windows
log.Debugf("IPs=%+v\n", IPs)
connectorOpts := volumeactions.ConnectorOpts{
IP: d.Conf.InitiatorIP,
Host: hostname,
Initiator: initiators[0],
Wwpns: []string{},
Wwnns: "",
Multipath: false,
Platform: "x86",
OSType: "linux",
}
log.Debugf("Unreserve volume: %s", vol.ID)
volumeactions.Unreserve(d.Client, vol.ID)
log.Debugf("Terminate connection for volume: %s", vol.ID)
volumeactions.TerminateConnection(d.Client, vol.ID, &connectorOpts)
log.Debugf("Detach volume: %s", vol.ID)
volumeactions.Detach(d.Client, vol.ID)
return volume.Response{}
}