The github.com/containerd/containerd/log package was moved to a separate
module, which will also be used by upcoming (patch) releases of containerd.
This patch moves our own uses of the package to use the new module.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
The existing logic to handle container ID conflicts when attempting to
create a plugin container is not nearly as robust as the implementation
in daemon for user containers. Extract and refine the logic from daemon
and use it in the plugin executor.
Signed-off-by: Cory Snider <csnider@mirantis.com>