/*
* Given a running container and a list of devices before and after a
* config change, update the devices in the container.
*
* Currently we only support nics. Disks will be supported once we
* decide how best to insert them.
*/
func devicesApplyDeltaLive(tx *sql.Tx, c *lxdContainer, preDevList shared.Devices, postDevList shared.Devices) error {
rmList, addList := preDevList.Update(postDevList)
var err error
// note - currently Devices.Update() only returns nics
for key, nic := range rmList {
if nic["name"] == "" {
return fmt.Errorf("Do not know a name for the nic for device %s\n", key)
}
if err := detachInterface(c, nic["name"]); err != nil {
return fmt.Errorf("Error removing device %s (nic %s) from container %s: %s", key, nic["name"], c.name, err)
}
}
for key, nic := range addList {
var tmpName string
if tmpName, err = setupNic(c, nic); err != nil {
return fmt.Errorf("Unable to create nic %s for container %s: %s", nic["name"], c.name, err)
}
if err := c.c.AttachInterface(tmpName, nic["name"]); err != nil {
RemoveInterface(tmpName)
return fmt.Errorf("Unable to move nic %s into container %s as %s: %s", tmpName, c.name, nic["name"], err)
}
// Now we need to add the name to the database
if err := txUpdateNic(tx, c.id, key, nic["name"]); err != nil {
shared.Debugf("Warning: failed to update database entry for new nic %s: %s\n", key, err)
}
}
return nil
}
/*
* Given a running container and a list of devices before and after a
* config change, update the devices in the container.
*
* Currently we only support nics. Disks will be supported once we
* decide how best to insert them.
*/
func devicesApplyDeltaLive(tx *sql.Tx, c container, preDevList shared.Devices, postDevList shared.Devices) error {
rmList, addList := preDevList.Update(postDevList)
var err error
for key, dev := range rmList {
switch dev["type"] {
case "nic":
if dev["name"] == "" {
return fmt.Errorf("Do not know a name for the nic for device %s", key)
}
if err := detachInterface(c, dev["name"]); err != nil {
return fmt.Errorf("Error removing device %s (nic %s) from container %s: %s", key, dev["name"], c.Name(), err)
}
case "disk":
return c.DetachMount(dev)
case "unix-block":
return c.DetachUnixDev(dev)
case "unix-char":
return c.DetachUnixDev(dev)
}
}
lxContainer := c.LXContainerGet()
for key, dev := range addList {
switch dev["type"] {
case "nic":
var tmpName string
if tmpName, err = setupNic(tx, c, key, dev); err != nil {
return fmt.Errorf("Unable to create nic %s for container %s: %s", dev["name"], c.Name(), err)
}
if err := lxContainer.AttachInterface(tmpName, dev["name"]); err != nil {
removeInterface(tmpName)
return fmt.Errorf("Unable to move nic %s into container %s as %s: %s", tmpName, c.Name(), dev["name"], err)
}
if err := txUpdateNic(tx, c.ID(), key, dev["name"]); err != nil {
shared.Debugf("Warning: failed to update database entry for new nic %s: %s", key, err)
return err
}
case "disk":
if dev["source"] == "" || dev["path"] == "" {
return fmt.Errorf("no source or destination given")
}
return c.AttachMount(dev)
case "unix-block":
return c.AttachUnixDev(dev)
case "unix-char":
return c.AttachUnixDev(dev)
}
}
return nil
}
/*
* Given a running container and a list of devices before and after a
* config change, update the devices in the container.
*
* Currently we only support nics. Disks will be supported once we
* decide how best to insert them.
*/
func devicesApplyDeltaLive(tx *sql.Tx, c *lxdContainer, preDevList shared.Devices, postDevList shared.Devices) error {
rmList, addList := preDevList.Update(postDevList)
var err error
// note - currently Devices.Update() only returns nics
for key, dev := range rmList {
switch dev["type"] {
case "nic":
if dev["name"] == "" {
return fmt.Errorf("Do not know a name for the nic for device %s\n", key)
}
if err := detachInterface(c, dev["name"]); err != nil {
return fmt.Errorf("Error removing device %s (nic %s) from container %s: %s", key, dev["name"], c.name, err)
}
case "disk":
return c.detachMount(dev)
}
}
for key, dev := range addList {
switch dev["type"] {
case "nic":
var tmpName string
if tmpName, err = setupNic(c, dev); err != nil {
return fmt.Errorf("Unable to create nic %s for container %s: %s", dev["name"], c.name, err)
}
if err := c.c.AttachInterface(tmpName, dev["name"]); err != nil {
RemoveInterface(tmpName)
return fmt.Errorf("Unable to move nic %s into container %s as %s: %s", tmpName, c.name, dev["name"], err)
}
// Now we need to add the name to the database
if err := txUpdateNic(tx, c.id, key, dev["name"]); err != nil {
shared.Debugf("Warning: failed to update database entry for new nic %s: %s\n", key, err)
}
case "disk":
if dev["source"] == "" || dev["path"] == "" {
return fmt.Errorf("no source or destination given")
}
return c.attachMount(dev)
}
}
return nil
}