[cosmic] lxd-tools replaced by lxd snap, which is missing 'fuidshift' binary

[Harald Hetzner]

lxd-tools used to ship the fuidshift command which is useful for shifting UIDs and GIDs of the container root filesystem in order to convert privileged into unprivileged containers. lxd-tools is now a meta package that will enforce that the lxd snap package is being installed. However, lxd snap (tested: stable channel, version 3.0.3 and 3.9) does not seem to provide fuidshift.

To get fuidshift back, I had to forcibly install an older version of lxd-tools: https://ubuntu.pkgs.org/18.04/ubuntu-updates-universe-amd64/lxd-tools_3.0.3-0ubuntu1~18.04.1_amd64.deb.html

Being a replacement also for lxd-tools, lxd snap should ship all binaries that used to be shipped.

[Seth Arnold (seth-arnold)]

This appears to be related to the package manager snapd, not the DNA analysis tool snap.

[Michael Vogt (mvo)]

I added a task for lxd as this seems to be about the lxd snap itself, not so much about snapd the package manager.

[Stéphane Graber (stgraber)]

Marking as "won't fix" as we can't really ship `fuidshift` as part of a strictly confined snap.

Those wanting this tool are probably best building it with a simple `go get github.com/lxc/lxd/fuidshift`. In theory a separate deb package for it could be introduced, but it's not something that the LXD team has any plan on doing ourselves.

[Harald Hetzner (haraldhetzner)]

Hm, I just figured out that I missed the last really useful comment because I did not get an e-mail about it.

Anyway, https://github.com/lxc/lxc/issues/3186 now explains in more detail how to quickly build fuidshift from source.

Thank you, Stéphane!