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[libvirt] libvirt support for LXC



Hi,

I am new to this community and am not much aware of current status libvirt work for LXC.

Currently I am evaluating LXC with libvirt.
and I found still many features like checkpoint/restore/live migration , Attach storage device etc are not implemented.

Is there any work going on these feature? or any plan or Roadmap?

Following is a table showing libvirt functionality support for LXC.

Please feel free to comment in case, I am wrong or tested not propely the libvirt and marked some working feature as not working for LXC.



Sr. No.

Command Name

Description (brief)

Status (working or not)

01

autostart

Enable and disable the automatic starting of a guest domain when the libvirt daemon starts.

02

Console

connect to the virtual serial console for the guest.

03

create

creates a guest domain from an xml file # does not work. gives error.

-

04

Define

defines but doesnt start a guest domain from an xml file

05

destroy

immediately terminates a running guest domain and releases any resources in use by it. Not to be used lightly

06

attach-disk  / detach-disk

attach or detach a disk device

Note : Doesnt work. maybe i am doing something wrong.

-

07

domjobinfo

info about running guest domain jobs

-

08

domjobabort

aborts current running guest domain job

-

09

Dump

Core dump a guest domain

-

10

managedsave / managedsave-remove

Save and destroy a running guest domain, so it can be restarted from the same state at a later time. When the virsh start command is next run for the guest domain, it will automatically be started from this saved state

-

11

Migrate **

migrates a guest domain to another host

 

12

Reboot

Runs a reboot in the guest domain

-

13

Restore

restores a guest domain

-

14

Resume

resumes a guest domain

15

Save

saves the running state of a guest domain to a file.

 

-

16

shutdown

runs shutdown in a guest domain

-

17

Start

starts a guest domain either form a last managedsave or via a fresh boot if no managed save is present

18

Update-device

update device from an XML file

-

19

virt-viewer

display a vnc type interface to running domain

20

maxvcpus

show maximum number of virtual CPUs for guest domains on this connection

-

21

memtune

gets or sets the current memory parameters for a guest domain

22

schedinfo

show or set scheduler parameters

23

setmaxmem

change the maximum memory allocation limit in the guest domain

24

setmem

change the current memory allocation in the guest domain

25

setvcpus

change the number of virtual cpus in the guest domain

-

26

vcpuinfo

returns basic info about the guest domains virtual CPU's

-

27

dominfo

displays some basic information about the domain specified

28

dommemstat

displays info about the memory statistics of the domain

-

29

domblkinfo

gets the block device size or a guest domain

30

domblkstat

gets device block stats for a running guest domain

31

domifstat

gets network interface stat for a running guest domain

32

dominfo

gets basic information about a guest domain

33

dommemstat

gets memory statistics for a running guest domain

34

domstate

returns the state of a guest domain i.e. whether running etc

35

list

returns a list of guest domains

36

Capabilities

returns the capabilities of the host and guest in xml format

37

freecell

Display available free memory for a NUMA cell

38

hostname

Display the name of the hypervisor host

39

nodeinfo

Returns basic information about the node

40

iface-define

define a physical host network interface.

The file expected is of the type xml.

We have an example of how it is executed.

41

iface-destroy

shutsdown and siables a physical host network device

42

iface-dumpxml

Output information for a physical host network interface, as an XML dump to stdout

43

iface-list

Returns a list of physical host network interfaces

44

iface-start

Enables and starts a physical host network interface

45

iface-undefine

Removes the configuration information for a physical host network interface

46

net-autostart

Enable or disable the automatic starting of a virtual network, when the libvirt daemon starts

47

net-define

Adds a new permanent virtual network from an XML file, without starting it

48

net-dumpxml

Displays the XML configuration for a virtual network (to stdout)

49

net-edit

opens the network config xml for editing by user.

50

net-info

displays basic information about a network

51

net-start

starts a network

52

net-undefine

undefines a network from the configuration file.

53

Domain snapshot commands (multiple)

 

Does not work with LXC.

-

 

 

 

 



Thanks & Regards,
Kunal Kushwaha

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