moby--moby/docs/reference/commandline/export.md

export

Usage: docker export [OPTIONS] CONTAINER

  Export the contents of a filesystem to a tar archive (streamed to STDOUT by default).

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

  Produces a tarred repository to the standard output stream.

For example:

$ docker export red_panda > latest.tar

Or

$ docker export --output="latest.tar" red_panda

The docker export command does not export the contents of volumes associated with the container. If a volume is mounted on top of an existing directory in the container, docker export will export the contents of the underlying directory, not the contents of the volume.

Refer to Backup, restore, or migrate data volumes in the user guide for examples on exporting data in a volume.