containerd depends on unreleased docker19 package in focal

Thank you for taking the time to file a bug report.

It seems that your point is to use the latest containerd version with and old docker.io version. We kindly suggest, if it's possible for you, update to the latest docker.io version from updates repositories. We can't figure out more about your necessity of installing 19.03.8-0ubuntu1.20.04.1 version without more context from your side... it seems you're receiving only security updates, not updates, but we can't confirm that without more information.

However, if you believe that this is really a bug in Ubuntu, then we would
be grateful if you would provide a more complete description of the problem
with steps to reproduce, explain why you believe this is a bug in Ubuntu
rather than a problem specific to your system, and then change the bug
status back to "New".

For local configuration issues, you can find assistance here:
http://www.ubuntu.com/support/community

Thanks for reporting this issue.

This is happening because containerd relies on a version of docker.io in -updates, which in turn requires a version of runc in -updates.

This issue affects environments where the updates pocket is disabled and only the security pocket is used.

We will rebuild docker.io and runc in the -security pocket and will publish them early next week.

Looks like this only affects bionic and focal.

This bug was fixed in the package docker.io - 20.10.2-0ubuntu1~20.04.3

---------------
docker.io (20.10.2-0ubuntu1~20.04.3) focal-security; urgency=medium

  * No change rebuild in -security pocket. (LP: #1937286)

 -- Marc Deslauriers <email address hidden> Fri, 23 Jul 2021 15:35:35 -0400

This bug was fixed in the package docker.io - 20.10.2-0ubuntu1~18.04.3

---------------
docker.io (20.10.2-0ubuntu1~18.04.3) bionic-security; urgency=medium

  * No change rebuild in -security pocket. (LP: #1937286)

 -- Marc Deslauriers <email address hidden> Fri, 23 Jul 2021 15:36:13 -0400