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dockercontainersregistrypush

Docker Image push to google container registry not working

When i push a image from a jenkins to gcr following error occurs: denied: Unable to write blob sha256

Even if i set the registry public it is not possible. The same error occurs

Solution

  • My problem sounded likewise. First, I managed to temporary fix it with @michael-bouvy's solution above, by manual deleting the conflicting images.

    What have I done to fix it permanently is adding permission in GC IAM to the appropriate custom role of the identity that performs pushing. Namely, in addition to existing ones:

    storage.buckets.get
storage.objects.create
storage.objects.get
storage.objects.list

    I appended two more:

    storage.objects.delete
storage.objects.update

    Basically, these permissions just looked like those that required for temporary manual operations.