Containers add propagation option `rshared`
Default value should be `rprivate`
Examples
```
podman run --replace --rm -dit -v /config/containers:/etc/foo:rshared --name mypod1 --net host busybox
podman run --replace --rm -dit -v /config/containers:/etc/foo:ro,rshared --name mypod1 --net host busybox
podman run --replace --rm -dit -v /config/containers:/etc/foo:rw,rshared --name mypod1 --net host busybox
```
Request from the [[ https://forum.vyos.io/t/containers-podman-volumes-directory-mapping-not-support-rshared/ | forum ]]