OpenShift Container Platform

Import manifest lists in image streams on your multi-architecture compute machines

On an OpenShift Container Platform {product-version} cluster with multi-architecture compute machines, the image streams in the cluster do not import manifest lists automatically. You must manually change the default importMode option to the PreserveOriginal option to import the manifest list.

Prerequisites

You installed the OpenShift CLI (oc).

Procedure

Enter a command similar to the following example command to patch the ImageStream cli-artifacts so that the cli-artifacts:latest image stream tag is imported as a manifest list:
```
$ oc patch is/cli-artifacts -n openshift -p '{"spec":{"tags":[{"name":"latest","importPolicy":{"importMode":"PreserveOriginal"}}]}}'
```

Verification

You can check that the manifest lists imported properly by inspecting the image stream tag. The following command lists the individual architecture manifests for a particular tag.

$ oc get istag cli-artifacts:latest -n openshift -oyaml

If the dockerImageManifests object is present, the manifest list imported successfully.

Example output of the dockerImageManifests object

dockerImageManifests:
  - architecture: amd64
    digest: sha256:16d4c96c52923a9968fbfa69425ec703aff711f1db822e4e9788bf5d2bee5d77
    manifestSize: 1252
    mediaType: application/vnd.docker.distribution.manifest.v2+json
    os: linux
  - architecture: arm64
    digest: sha256:6ec8ad0d897bcdf727531f7d0b716931728999492709d19d8b09f0d90d57f626
    manifestSize: 1252
    mediaType: application/vnd.docker.distribution.manifest.v2+json
    os: linux
  - architecture: ppc64le
    digest: sha256:65949e3a80349cdc42acd8c5b34cde6ebc3241eae8daaeea458498fedb359a6a
    manifestSize: 1252
    mediaType: application/vnd.docker.distribution.manifest.v2+json
    os: linux
  - architecture: s390x
    digest: sha256:75f4fa21224b5d5d511bea8f92dfa8e1c00231e5c81ab95e83c3013d245d1719
    manifestSize: 1252
    mediaType: application/vnd.docker.distribution.manifest.v2+json
    os: linux