How to force kaniko to build OCI images with oci manifests instead of docker manifests?

[titou10titou10]

Actual behavior
I'm not sure if it is a bug or a question. I've read somewhrer that kaniko produces oci images by default but's its not the case for me

Currently when I use kaniko to bulld an image, the media type in the manifests is "application/vnd.docker.distribution.manifest.v2+json"

Q: how to force kaniko to produce images with manifests"application/vnd.oci.image.config.v1+json"?

When I use buildah for the same build, the image is of type"application/vnd.oci.image.config.v1+json"?

Expected behavior
I want a way for the images produced by kaniko to have a media type of "application/vnd.oci.image.config.v1+json"

Additional Information

• kaniko v1.12.1

• build is run from tekton on OKD v4.13 (Fedora core OS 38.20230527.3.0)

• From the tekton task:

  - name: build
    image: gcr.io/kaniko-project/executor:v1.12.1
   {...}
    args:
      - --dockerfile=$(params.DOCKERFILE)
      - --context=$(workspaces.code-git.path)/$(params.CONTEXT)
      - --destination=$(params.IMAGE_BASE):$(params.IMAGE_TAG)
      - --digest-file=$(results.IMAGE_DIGEST.path)
  

Triage Notes for the Maintainers

Description	Yes/No
Please check if this a new feature you are proposing
Please check if the build works in docker but not in kaniko
Please check if this error is seen when you use --cache flag
Please check if your dockerfile is a multistage dockerfile

[randlega]

Possibly related to: #1836 ?