Skip to content

push-to-openshift-cincinnati-test-public-manual.md

Latest commit

 

History

History
79 lines (60 loc) · 3.97 KB

push-to-openshift-cincinnati-test-public-manual.md

File metadata and controls

79 lines (60 loc) · 3.97 KB
Raw

Repository openshift-cincinnati-test-public-manual

The image repository quay.io/openshift-ota/openshift-cincinnati-test-public-manual is created for testing as a release repo for graph-builder to scrape.

Mirror

The simplest way to make an image in the openshift-cincinnati-test-public-manual repo is to mirror one from quay.io/openshift-release-dev/ocp-release. E.g.,

$ oc image mirror --keep-manifest-list --registry-config=/tmp/docker.json --max-per-registry=10 quay.io/openshift-release-dev/ocp-release:4.18.11-multi=quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.11-multi

We can mirror all the interesting cases to openshift-cincinnati-test-public-manual so that using the repo as the scraping target in CI e2e tests will keep cincinnati away from regression.

Build and Push

For example, we can build and push quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.6 with the following files in the current folder:

$ for file in ./*; do echo "$file"; cat "$file"; done
./Dockerfile
FROM alpine
CMD ["echo", "Hello World!!"]
LABEL io.openshift.release="4.18.6"
COPY release-metadata /release-manifests/release-metadata
./release-metadata
{
  "kind": "cincinnati-metadata-v0",
  "version": "4.18.6",
  "previous": [
    "4.18.3"
  ],
  "metadata": {
    "url": "https://access.redhat.com/errata/RHSA-202X:ABAB"
  }
}

with buildah:

$ buildah bud --format docker -t quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.6 .
$ buildah push --authfile ~/.docker/config.json quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.6

Format of Image's Manifest and Metadata

We have to use --format docker to build the image when using buildah. Otherwise, the default oci would lead to an image that graph-builder yields "unknown media type ManifestV2S1" error to and then ignores. See the supported media types.

We cannot use podman to build the image because podman build --format docker does not work. See podman/issues/21294.

$ skopeo inspect --raw docker://quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.12-x86_64-podman | jq
{
  "schemaVersion": 2,
  "mediaType": "application/vnd.oci.image.manifest.v1+json",
  ...
}

$ docker manifest inspect quay.io/openshift-ota/openshift-cincinnati-test-public-manual:4.18.12-x86_64-podman
{
  "schemaVersion": 2,
  "mediaType": "application/vnd.oci.image.manifest.v1+json",
  ...
}

Note that podman manifest inspect the above image led to errors. So does buildah. However, either skopeo or docker works.

Besides buildah, openshift/build generates the images that graph-builder is happy with. The following table contains the testing results about these build tools.

command version os install working
buildah buildah version 1.39.2 (image-spec 1.1.0, runtime-spec 1.2.0) Fedora Linux 40 (Workstation Edition) sudo dnf -y install buildah yes
skopeo skopeo version 1.18.0 Fedora Linux 40 (Workstation Edition) sudo dnf -y install skopeo yes
openshift-build OSD 4.18.11 n/a n/a yes
podman podman version 5.4.2 macOS Sequoia 15.4.1 (24E263) brew install podman no