LXD Linux system container manager. It gives a user experience comparable to virtual machines but using Linux containers instead. There is no VM like overheads. This page shows how to make snapshots with LXD and restore them if the need arises.

 

Procedure to create snapshots with lxc for LXD

  1. To make a snapshot for LXD, run: lxc snapshot containerName
  2. Create a snapshot named backup01 for Linux container named www1 using the lxc command: lxc snapshot www1 backup01
  3. Restore LXD container named www2 from snapshots named snap2, on Linux: lxc restore www2 snap2

 

Let us see examples and usage in details.

 

How to create the LXD snapshot using lxc

 

The syntax is:

lxc snapshot {container} {snapshot-name}

 

Next, create the LXD snapshot:

$ lxc snapshot utls-newsletter snap-04-jan-2019

 

Verify snapsots or see info about snapshots:

$ lxc info utls-newsletter

 

Usually, I stop container before taking snapshots:

lxc stop www42
lxc snapshot www42 snap01
lxc start www42

 

How to restore the LXD snapshot using lxc

The syntax is:

lxc restore {container} {snapshot-name}

 

Restore the LXD snapshot:

lxc restore www42 snap01

 

How to delete the LXD snapshot using lxc command

Again the syntax is:

lxc delete {container}/snapshot-name}

 

To force user confirmation pass the -i option:

lxc delete {container}/snapshot-name} -i

 

Say you want to delete the LXD snapshot named snap-04-jan-2019 for utls-newsletter container, run:

$ lxc delete utls-newsletter/snap-04-jan-2019 -i

OR

$ lxc delete utls-newsletter/snap-04-jan-2019

 

Conclusion

Use the following commands to create, delete and restore snapshots for the LXD running on Linux.

lxc command Description for LXD Example(s)
lxc snapshot {container} {snapshot} Create a snapshot lxc snapshot www-c1 snap01
lxc restore {container} {snapshot} Restore the snapshot lxc restore www-c1 snap01
lxc info {container} Get the container information including snapshot info lxc www-c1
lxc delete {container}/{snapshot} Delete the snapshot lxc delete www-c1/snap01

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