Docker pull/push using private registry without pr

问题:

We are using Nexus3 docker groups (combining dockerhub proxy and private registry) aka:

docker pull dockerproxy:5002/busybox

trying to pull from dockerhub if it does not exist in private registry, push storing in private registry part. Works fine.

But how can I make:

docker pull busybox

go to this registry without having to prefix dockerproxy:5002 first?

An environment variable?, $HOME/.docker/config.json? Creative tagging?

Thanks

回答1:

No, the registry address is part of the full tag for the image. If you don't specify an address, Docker Hub is assumed, and you can't change to a different default.

There's no way around it (short of building your own Docker Engine) - it's a deliberate design decision:

this would lead to a situation where docker pull ubuntu could mean two different things for two different persons/installs, that would very bad for the user. It would lead to a fragmentation of the ecosystem and break the community.