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Comment by firloop | Hacker News Reader

I wasn't able to get this working, but I was able to use Google's mirror[0] just fine.

Just had to change

    FROM {image_name}

    FROM mirror.gcr.io/{image_name}

Hope this helps!

We tried this initially

  FROM mirror.gcr.io/{image_name}

We received

  failed to resolve source metadata for mirror.gcr.io/

So it looks like these services may not be true mirrors, and just functioning as a library proxy with a cache.

If you're image is not cached on one of these then you may be SOL.

During the last Docker Hub outage we found Google mirrors lost all image tags after a while. Image digest references would probably work