Support for s390x architecture

[dmittelstaedt]

Is s390x architecture supported in OKD >4.17? The assets of the releases and tools are a little bit confusing, e.g. openshift-client for s390x exsits.

If I print the coreos streams, s390x seems to be supported.

$ openshift-install coreos print-stream-json

...
"s390x": {
      "artifacts": {
        "ibmcloud": {
          "release": "9.0.20250222-0",
          "formats": {
            "qcow2.gz": {
              "disk": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-ibmcloud.s390x.qcow2.gz",
                "sha256": "9da9330ab1d7965e37f2f306eea35e3d524bc6b1e36b98b6ba53971977bcef4d",
                "uncompressed-sha256": "46b44463efc5259867532a6086d82ad210c3ccd213f09cde9abb3240541c5301"
              }
            }
          }
        },
        "metal": {
          "release": "9.0.20250222-0",
          "formats": {
            "4k.raw.gz": {
              "disk": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-metal4k.s390x.raw.gz",
                "sha256": "c2a6c17db51c7719d6f6147c4ad7cad2b0155d59bfe2da093a85fc823abdab66",
                "uncompressed-sha256": "2999cfcd7dac7e15f831e95887f1d65f28cc5636318d5a34afbb27aa19a93368"
              }
            },
            "iso": {
              "disk": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-live-iso.s390x.iso",
                "sha256": "ce49ed167ec62bb5ef62b13a9c87ac20b1ba4f502fb4cc9cd2d9be7c38be57bc"
              }
            },
            "pxe": {
              "kernel": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-live-kernel.s390x",
                "sha256": "05e870274a553ef50b73066aef77cbf7cc7bc73f0d67e036cf9557849533a767"
              },
              "initramfs": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-live-initramfs.s390x.img",
                "sha256": "dcbed2df7234ddb4f741c6f4ae64628baa630a9b851011f37c0991f99098ccde"
              },
              "rootfs": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-live-rootfs.s390x.img",
                "sha256": "112a5e40554409b561ebd092a3db0cccc406a3cccf2a946b3571f18e76038ca7"
              }
            },
            "raw.gz": {
              "disk": {
                "location": "https://rhcos.mirror.openshift.com/art/storage/prod/streams/c9s/builds/9.0.20250222-0/s390x/scos-9.0.20250222-0-metal.s390x.raw.gz",
                "sha256": "286d0e14d59e386ca5dcfb7b13a5d783f215e9e35ae6458bb7c97385ef6cb03a",
                "uncompressed-sha256": "4d8da47531436f9126d1b2296d144e511a08a474d8a0dc39b6e653bcc2eac0f5"
              }
            }
          }
        },
..

But If I do the installation, I get the following error:

Apr 14 14:58:24 hostname sh[30698]: Trying to pull quay.io/okd/scos-content@sha256:1d71cfd3208f029154d468d5161035bebfdf6907cbc3f26a8ba21b7e7877a913...
Apr 14 14:58:25 hostname sh[30698]: Error: choosing an image from manifest list docker://quay.io/okd/scos-content@sha256:1d71cfd3208f029154d468d5161035bebfdf6907cbc3f26a8ba21b7e7877a913: no image found in manifest list for architecture s390x, variant "", OS linux

And if I check the images/manifests in https://quay.io/repository/okd/scos-content?tab=tags, everything seems to be amd64 only.

[khdo]

While the scos node images have been built, the container images needed for deployment for non-x86 platforms have not been built for okd as of yet.

[ausil]

As we work through this year to change the buildsystem used to build the OKD containers, we would like to add support for s390x along with ppc64le and AArch64(Arm64)