include platform and creation date listing image

[ndeloof]

What I did
Added PLATFORM and CREATED columns in docker compose images output

decoupled from getImageSummaries used by lifecycle methods, as having a ImageSummary#ContainerName attribute is confusing

$ docker compose images
CONTAINER REPOSITORY TAG PLATFORM IMAGE ID SIZE CREATED
truc-hello-1 truc-hello latest linux/arm64 00dd0d06b496 87.9MB 2 hours ago

Related issue

(not mandatory) A picture of a cute animal, if possible in relation to what you did

[thaJeztah]

Slightly wondering about the PLATFORM here - what does the IMAGE ID refer to? Is that referring to the variant of the image? Considering multi-platform images and such.

cc @vvoland

[thaJeztah]

wondering if it would make more sense to show a platform column for the list of containers; something we'll be adding as an optional column for docker ps; see docker/cli#6042

[ndeloof]

IMAGE ID is the one returned by ImageInspect

[thaJeztah]

Yeah, so by default, docker image inspect show the ID of the manifest-index;

docker image inspect --format '{{.ID}}' alpine
sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
docker buildx imagetools inspect alpine | head -n3
Name: docker.io/library/alpine:latest
MediaType: application/vnd.oci.image.index.v1+json
Digest: sha256:a8560b36e8b8210634f77d9f7f9efd7ffa463e380b75e2e74aff4511df3ef88c
docker image ls --tree
IMAGE ID DISK USAGE CONTENT SIZE EXTRA
alpine:latest a8560b36e8b8 25MB 7.64MB
├─ linux/amd64 1c4eef651f65 12.1MB 3.64MB
├─ linux/arm/v6 903bfe2ae994 0B 0B
├─ linux/arm/v7 9c2d245b3c01 0B 0B
├─ linux/arm64/v8 757d680068d7 12.8MB 3.99MB
├─ linux/386 2436f2b3b7d2 0B 0B
├─ linux/ppc64le 9ed53fd3b831 0B 0B
├─ linux/riscv64 1de5eb4a9a67 0B 0B
└─ linux/s390x fe0dcdd1f783 0B 0B

So, technically adding a platform to that is not correct, as the platform would be for the image manifests underneath; using docker image inspect and specifying a platform will show a different ID for that reason;

docker image inspect --platform=linux/amd64 --format '{{.ID}}' alpine
sha256:1c4eef651f65e2f7daee7ee785882ac164b02b78fb74503052a26dc061c90474
docker buildx imagetools inspect alpine | grep -A3 1c4eef651f65e2f7daee7ee785882ac164b02b78fb74503052a26dc061c90474 | head -n3
Name: docker.io/library/alpine:latest@sha256:1c4eef651f65e2f7daee7ee785882ac164b02b78fb74503052a26dc061c90474
MediaType: application/vnd.oci.image.manifest.v1+json
Platform: linux/amd64
docker image inspect --platform=linux/arm64 --format '{{.ID}}' alpine
sha256:757d680068d77be46fd1ea20fb21db16f150468c5e7079a08a2e4705aec096ac
docker buildx imagetools inspect alpine | grep -A3 757d680068d77be46fd1ea20fb21db16f150468c5e7079a08a2e4705aec096ac | head -n3
Name: docker.io/library/alpine:latest@sha256:757d680068d77be46fd1ea20fb21db16f150468c5e7079a08a2e4705aec096ac
MediaType: application/vnd.oci.image.manifest.v1+json
Platform: linux/arm64/v8

[ndeloof]

docker image inspect show the ID of the manifest-index

not when ran with --platform, which is what we show here as image ID

$ docker compose images
CONTAINER REPOSITORY TAG PLATFORM IMAGE ID SIZE CREATED
truc-hello-amd64-1 debian latest linux/amd64 6bc30d909583 48.5MB 4 minutes ago
truc-hello-arm64-1 debian latest linux/arm64/v8 f245326d62b3 48.3MB 4 minutes ago

[thaJeztah]

Right, but neither 6bc30d909583 nor f245326d62b3 are tagged as debian:latest - the manifest index is tagged, and the underlying images are not.

That's basically the reason why we opted not to show platform in docker image ls, and only show it with the --tree view

[ndeloof]

ok, fixed to only display the top-level tagged image ID

$ docker compose images
CONTAINER REPOSITORY TAG PLATFORM IMAGE ID SIZE CREATED
truc-hello-amd64-1 debian latest linux/amd64 264982ff4d18 48.5MB 32 minutes ago
truc-hello-arm64-1 debian latest linux/arm64/v8 264982ff4d18 48.3MB 32 minutes ago

Maybe you should close moby/moby#49995 if there's no plan to support this ?

[glours]

LGTM and tests ok 👍