Pulling Docker Images - Manifest not found

Question

I'm trying to download a tagged docker image

docker pull clkao/postgres-plv8:10-2 

and, in a compose file,

  postgres:     image: clkao/postgres-plv8:10-2 

But receive a manifest not found exception.

Unless I'm mistaken, that tag exists in Docker Hub, however I notice that it doesn't appear on the tags list.

Am I doing something wrong? Or is this perhaps an issue with Docker Hub or the way that repo has been set up?

If it isn't 'my fault', what's a recommendation to move forward? Create my own Dockerfile perhaps?

Answer 1

You might also try docker pull -a <image>. The -a will pull all versions of that image, which at least lets you know what is there.

(This is less useful if you really need a specific version, but helped me when I tried to pull an image that for some reason did not have a 'latest' tag.)

Edit: This is actually a really bad idea, since it will pull down the entire history, which for many repositories could be many GB. Better to go look at the repository site and see what tag you want. Note to self: don't post answers when you are tired. :-(

Answer 2

You get the error message because there exist no tag with "10-2".
You can try to figure out why and contact the repository owner or you can try to build your own one.