Is it possible to export a container image as a unified tarball in LXD 5.21?
The lxc image export <name> command generates the split tarballs.
Thank you,
Leonid
No. Currently, only the split mode is supported, which produces a metadata tarball and a squashfs or qcow2 image for containers and virtual machines, respectively.
Hi there,
What @dinmusic said is correct for images downloaded from the simplestreams remotes (i.e those cached from remotes such as ubuntu: or images:).
However it is not correct for images published from LXD instances, e.g.
lxc init images:alpine/3.20 c1
lxc publish c1
Instance published with fingerprint: 9854419e7e66d13f406acdbf387a30dc5f0c97e092847a36e919aa3287cc95b2
lxc image export 9854419e7e66d13f406acdbf387a30dc5f0c97e092847a36e919aa3287cc95b2
ls
-rw-rw-r-- 1 user user 3902166 Oct 7 10:20 9854419e7e66d13f406acdbf387a30dc5f0c97e092847a36e919aa3287cc95b2.tar.gz
This exports a combined image tarball because LXD creates combined images when it publishes an instance.
We have an item for next cycle to support converting between image types during export.
1 Like
@tomp Thanks for pointing out the published instances, which are indeed exported as a unified/combined image tarball.
1 Like
Ok, thank you for clarification.
1 Like