Description
Taking the following example;
echo -e 'FROM alpine:latest\nLABEL foo=bar' | docker build \
--tag localhost:5000/namespace1/myimage:latest \
--tag localhost:5000/namespace1/myimage:1.0.0 \
--tag localhost:5000/namespace2/myimage:latest \
--tag localhost:5000/namespace2/myimage:1.0.0 \
-Without containerd store
We need to push the images to have their digest produced (this is not needed with the containerd image store enabled)
docker push --all-tags localhost:5000/namespace1/myimage
docker push --all-tags localhost:5000/namespace2/myimage
After this, inspecting shows that there's no duplicates in the RepoDigests;
docker image inspect --format '{{json .RepoDigests}}' localhost:5000/namespace1/myimage:latest | jq
[
"localhost:5000/namespace1/myimage@sha256:098a58165c88f57b276cf9bcb81087c3fc3be14f27320b83f0988829d4e856fc",
"localhost:5000/namespace2/myimage@sha256:098a58165c88f57b276cf9bcb81087c3fc3be14f27320b83f0988829d4e856fc"
]With containerd store
With the containerd image store enabled, each tag of the image also produces an entry in the digests;
docker image inspect --format '{{json .RepoDigests}}' localhost:5000/namespace1/myimage:latest | jq
[
"localhost:5000/namespace1/myimage@sha256:3b3bdb5db88500448c1588a124645d9d1c0a95c7476351e76b80a663582996fd",
"localhost:5000/namespace1/myimage@sha256:3b3bdb5db88500448c1588a124645d9d1c0a95c7476351e76b80a663582996fd",
"localhost:5000/namespace2/myimage@sha256:3b3bdb5db88500448c1588a124645d9d1c0a95c7476351e76b80a663582996fd",
"localhost:5000/namespace2/myimage@sha256:3b3bdb5db88500448c1588a124645d9d1c0a95c7476351e76b80a663582996fd"
]Reproduce
see above
Expected behavior
The list of RepoDigests should be unique. We should remove duplicates from the list.
docker version
Client:
Version: 27.3.1
API version: 1.47
Go version: go1.22.7
Git commit: ce12230
Built: Fri Sep 20 11:38:18 2024
OS/Arch: darwin/arm64
Context: default
Server: Docker Engine - Community
Engine:
Version: 27.3.1
API version: 1.47 (minimum version 1.24)
Go version: go1.22.7
Git commit: 41ca978
Built: Fri Sep 20 11:39:57 2024
OS/Arch: linux/arm64
Experimental: false
containerd:
Version: v1.7.22
GitCommit: 7f7fdf5fed64eb6a7caf99b3e12efcf9d60e311c
runc:
Version: 1.1.14
GitCommit: v1.1.14-0-g2c9f560
docker-init:
Version: 0.19.0
GitCommit: de40ad0
docker info
not relevant
Additional Info
No response
Description
Taking the following example;
Without containerd store
We need to push the images to have their digest produced (this is not needed with the containerd image store enabled)
After this, inspecting shows that there's no duplicates in the
RepoDigests;With containerd store
With the containerd image store enabled, each tag of the image also produces an entry in the digests;
Reproduce
see above
Expected behavior
The list of
RepoDigestsshould be unique. We should remove duplicates from the list.docker version
docker info
not relevant
Additional Info
No response