docker-image-save - Save one or more images to a tar archive (streamed to STDOUT by default)

       Produces  a  tarred  repository to the standard output stream. Contains all parent layers, and all tags +
       versions, or specified repo:tag.

       Stream to a file instead of STDOUT by using -o.

       Save all fedora repository images to a fedora-all.tar and save the  latest  fedora  image  to  a  fedora-
       latest.tar:

       $ docker image save fedora > fedora-all.tar
       $ docker image save --output=fedora-latest.tar fedora:latest
       $ ls -sh fedora-all.tar
       721M fedora-all.tar
       $ ls -sh fedora-latest.tar
       367M fedora-latest.tar

       docker-image-save - Save one or more images to a tar archive (streamed to STDOUT by default)

-h, --help[=false]      help for save

       -o, --output=""      Write to a file, instead of STDOUT

docker-image(1)

Docker Community                                    Feb 2025                                           DOCKER(1)

dockerimagesave[OPTIONS]IMAGE[IMAGE...]