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How to use docker hub with podman?

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Unlike docker, Podman won't (understandably) use docker hub by default. You can use it explicitly like this: (just using a random example here, it's an OpenAPI linter)

podman pull docker.io/dshanley/vacuum

But how to do it without the docker.io prefix?

podman docker-container

posted about 1 year ago

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Add the following to /etc/containers/registries.conf:

unqualified-search-registries = ["docker.io"]

[[registry]]
location = "docker.io"

Now you can pull just like you would in docker:

podman pull dshanley/vacuum

Just note that podman defines a bunch of aliases for common containers in /etc/containers/registries.conf.d/00-shortnames.conf which are checked before searching docker.io, so if you seem to be pulling wrong images, then you might want to delete/edit that file.

This is also a useful blog post on the subject: How to manage Linux container registries