How to create snapshots with lxc command for LXD

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Procedure to create snapshots with lxc for LXD

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

I need to save the state of my existing app running on LXD before I push new Python-based app. How do I create snapshots with lxc command for LXD based Linux container?Introduction – 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.

Let us see examples and usage in derails.

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



lxc stop www42

lxc snapshot www42 snap01

lxc start www42

How to restore the LXD snapshot using lxc

Usually, I stop container before taking snapshots:

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