Copying images to and from registries in Container Registry

1. Set up authentication in Container Registry on your machine.
2. Get the fully qualified domain names (FQDNs) of your source and destination registries. In Nebius AI Cloud, a registry’s FQDN is cr.<region_ID>.nebius.cloud where <region_ID> is the ID of a Nebius AI Cloud region; for example, cr.eu-north1.nebius.cloud. To get a registry’s FQDN, run the Nebius AI Cloud CLI command nebius registry list or nebius registry get <registry_ID>; the output contains the FQDN in the .status.registry_fqdn parameter. For more details about the commands, see the references for nebius registry list and nebius registry get.
3. Pull the image from the source registry:
   docker pull <source_FQDN>/<source_registry_name>/<image>:<tag>
   
4. Add a destination registry tag to the image and push it to the registry:
   docker tag \
     <source_FQDN>/<source_registry_name>/<image>:<tag> \
     <destination_FQDN>/<destination_registry_name>/<image>:<tag>
   docker push <destination_FQDN>/<destination_registry_name>/<image>:<tag>
   

For example, to copy the hello-world:hello image from the my-registry registry in Nebius AI Cloud’s eu-north1 region and transfer it to a GitHub Packages container registry called octocat, run the following commands:

docker pull cr.eu-north1.nebius.cloud/my-registry/hello-world:hello
docker tag \
  cr.eu-north1.nebius.cloud/my-registry/hello-world:hello \
  ghcr.io/octocat/hello-world:hello
docker push ghcr.io/octocat/hello-world:hello