Easy move container images between registries with single command

docker tag .. is one of the most no-sense command from the users side, talking about moving container images between registries.

Solution

Use crane tool (made by Google!).

# authenticate to the destination registry (do the same with source registry based on needs)
crane auth login my-registry.net -u AzureDiamond -p hunter2


# copy nginx image from dockerhub to my-registry.net
crane copy nginx:latest my-registry.net/nginx:latest

That's all!

Official reference

go-containerregistry/cmd/crane/doc/crane.md at main · google/go-containerregistry

Go library and CLIs for working with container registries - google/go-containerregistry

GitHubgoogle