getting image manifest returns OCI Error

[Itzik]

"code":"MANIFEST_UNKNOWN","message":"OCI index found, but accept header does not support OCI indexes"

when sending in the header application/vnd.oci.image.index.v1+json I am succiding to get the manifest list from the registry - but when using application/vnd.oci.image.manifest.v1+json for example to get ubuntu:latest I failed with the error above

[Athos Ribeiro (athos-ribeiro)]

Are you using the correct endpoints? It would be nice to show a reproducer for your issue here so we can better assist you with your request.

Namely, what tools (and their respective versions) are you using to fetch the image? Is that a self-written script? Would you mind sharing?

Finally, have you tried using the references given in the index you are pulling to be able to fetch the image?

[Itzik (itzikreuven)]

Hi,

The endpoint I am using is Docker V2 API for manifests:
- https://registry-1.docker.io/v2/library/ubuntu/manifests/latest

The header I am sending in the request is:

Accept application/vnd.oci.image.manifest.v1+json

Since I understood that u migrated the new image manifests to oci media types (the header used to be application/vnd.docker.distribution.manifest.v2+json)
This reproduces the error I mentioned

BTW,
If I send this header to the same endpoint-

application/vnd.oci.image.index.v1+json
This returns a manifests list response as expected

[Thibault (thibault-s)]

hello,

I have the same issue when I try to pull the image with docker CLI (Docker version 19.03.3).
I guess the manifest is wrong since the last rebuild (19 days ago).

Thibault

[Praitayini Kanakaraj (praitayini)]

Hi,

I'm also seeing the following error since Feb 5 2023:
"FATAL: While performing build: conveyor failed to get: Error reading manifest 18.04 in docker.io/library/ubuntu: manifest unknown: OCI index found, but accept header does not support OCI indexes"

This happens for 20.04 as well.

Steps to reproduce
$ cat Singularity
Bootstrap: docker
From: ubuntu:20.04

$ sudo singularity build test.simg Singularity

Setup details
Singularity version 3.5.3
Docker version 20.10.17, build 100c701
Local machine: Ubuntu 20.04.4 LTS

[Lun (lcheung)]

I am also unable to read the manifests. Steps to reproduce:

1) TOKEN=$(curl "https://auth.docker.io/token?service=registry.docker.io&scope=repository:ubuntu:pull" | jq -r .token)

2) curl -H "Accept: application/vnd.oci.image.index.v1+json" -H "Authorization: Bearer $TOKEN" https://registry-1.docker.io/v2/ubuntu/manifests/18.04

3) Results: {"errors":[{"code":"UNAUTHORIZED","message":"authentication required","detail":[{"Type":"repository","Class":"","Name":"ubuntu","Action":"pull"}]}]}