docker build -t <tag> ... creates 2 image references

[cpuguy83]

Description

With containerd snapshotters enabled, when building an image with a tag (docker build -t), 2 image references are created and displayed to docker images output.

Reproduce

$ docker build -t asdf --iidfile=img.id.txt - <<<"FROM busybox" && cid="$(docker create $(cat img.id.txt))"; docker rm "${cid}"
$ docker images
REPOSITORY                  TAG       IMAGE ID       CREATED         SIZE
asdf                        latest    d3469aef8c13   2 minutes ago   2.59MB
asdf                        latest    d3469aef8c13   2 minutes ago   2.62kB

Expected behavior

There should only be one reference

docker version

HEAD

docker info

N/A

Additional Info

No response

[thaJeztah]

Probably same as #44573 (each platform is shown as a separate image (rumpl#113), and with attestations, an extra platform is created)

Also related;

• UX: improve / design UX for multi-arch images #44582

[cpuguy83]

Ah yes, the extra entry appears to be the attestation. Setting --provenance=false gives me a single image reference.

[vvoland]

This will be fixed by: #45124

[thaJeztah]

• should be fixed by c8d/list: Ignore attestation manifests #45124