Containerd v2 verification

[phillebaba]

Describe the problem to be solved

Changes made in Containerd v2 make Spegel fail its verification on startup. Details about this issue is described in #579. The short explanation is that configuration data used to verify the configuration has been removed from the data returned by the API. Currently with Containerd v2 there is no method of verifying the mirror configuration through an API call.

Proposed solution to the problem

The current solution to fix this is to disable the verification when Spegel is running with Containerd v2. This change was maed in #581. Long term we need to find out a method of recreating the verification logic implemented for Containerd v1.7 in v2. This would require finding an alternative method of getting the configuration values or getting Containerd to add the old configuration back.

[phillebaba]

I have created containerd/containerd#10780 to track possible solutions in Containerd.