####> This option file is used in: ####> podman create, pod clone, pod create, run ####> If file is edited, make sure the changes ####> are applicable to all of those.

--volumes-from=CONTAINER[:OPTIONS]

Mount volumes from the specified container(s). Used to share volumes between containers<<| and pods>>. The options is a comma-separated list with the following available elements:

• rw|ro

• z

Mounts already mounted volumes from a source container onto another <<container|pod>>. CONTAINER may be a name or ID. To share a volume, use the --volumes-from option when running the target container. Volumes can be shared even if the source container is not running.

By default, Podman mounts the volumes in the same mode (read-write or read-only) as it is mounted in the source container. This can be changed by adding a ro or rw option.

Labeling systems like SELinux require that proper labels are placed on volume content mounted into a <<container|pod>>. Without a label, the security system might prevent the processes running inside the container from using the content. By default, Podman does not change the labels set by the OS.

To change a label in the <<container|pod>> context, add z to the volume mount. This suffix tells Podman to relabel file objects on the shared volumes. The z option tells Podman that two entities share the volume content. As a result, Podman labels the content with a shared content label. Shared volume labels allow all containers to read/write content.

If the location of the volume from the source container overlaps with data residing on a target <<container|pod>>, then the volume hides that data on the target.