[release-1.22] fix: host builder can push to OCP internal registry - #3886
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knative-prow[bot] merged 1 commit intoJun 8, 2026
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OpenShift's internal registry returns HTTP 500 for manifest HEAD requests by digest when the repository doesn't exist yet. Since remote.WriteIndex checks child manifests by digest, the push fails on a fresh repository. Before writing the index, perform a HEAD request by tag. If the registry returns 404, push an empty image to create the repository first. The empty image tag is then overwritten by the index push. Signed-off-by: Matej Vašek <matejvasek@gmail.com>
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[APPROVALNOTIFIER] This PR is APPROVED This pull-request has been approved by: knative-prow-robot, matejvasek The full list of commands accepted by this bot can be found here. The pull request process is described here DetailsNeeds approval from an approver in each of these files:
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This is an automated cherry-pick of #3885