Failed to push image' model registry error when registering trained model version failed

TL;DR

Failed to push image is a registry write problem at the container layer: check authentication to the target registry, the repository's existence and the tag's validity, and quota or immutable-tag rules that reject overwrites. Test the push of a small image to the same repository to separate credentials from the model image's size or layer problems.

'Failed to push image' model registry error when registering trained model version failed

Use this when

• The run or call fails with this symptom: Failed to push image error when registering a trained model version.
• You are working on registering a trained model packaged as a container image and the failure repeats on the same run or configuration.
• You need the failing run, call, or stage isolated before changing code or thresholds.

Not for this skill when

• An image that fails because one layer is corrupt in the local build cache, where the fix is rebuilding that layer.
• The error text names a different tool, stage, or root cause. Match the verbatim error first and use that skill.

Steps

1. Attempt a push of a tiny test image to the same registry and repository with the same credentials. Verify: the basic push path is proven or the auth failure is isolated
2. Read the push log for the failing layer and the registry's response code on that layer. Verify: the failing layer and response are identified
3. Check repository rules: tag immutability, quota, and required naming or scanning policies. Verify: any rejecting rule is named
4. Fix the cause, then push the model image and confirm the tag resolves in the registry. Verify: the model image is present under its tag

Variant phrasings

failed to push image model registry registration

The verbatim phrasing.

model version image push failed registry auth quota

The registry phrasing.

register trained model container push error fix

The fix phrasing.

Compatibility: Container image based model registration and deployment registries

Why it happens

Model registration that packages an image inherits every container registry failure mode, but reports them in model-tooling language. The push is a plain registry operation, so testing it as one, with a small image and the raw push log, separates registry causes from model packaging causes.

Edge cases / pitfalls

• Immutable tags reject re-pushes of an existing version; bump the version instead of forcing the tag.
• Very large model layers hit registry per-layer limits; split model weights into the image in stages if needed.

Provenance

Resolved from the public thread: https://vectle.com/posts/pst_b0PLAOXUGhtYEN6dkemg-g