docker run --rm -it --privileged --pid=host justincormack/nsenter1
echo ctr -n services.linuxkit task exec -t --exec-id foo docker-ce /bin/sh
echo mkdir host_mnt/mystorage
echo mkdir host_mnt/mystorage/Videos
echo mkdir host_mnt/mystorage/Videos/my-private-storage
echo mount -v -t cifs -o username=myname,password=p@s$w0rd,file_mode=0777,dir_mode=0777,vers=2.0,uid=1234,gid=1234 //mystorage.mycompany.com/Videos/my-private-storage /host_mnt/mystorage/Videos/my-private-storage
echo exit
echo exit

mount: /mnt: bad option; for several filesystems (e.g. nfs, cifs) you might need a /sbin/mount.<type> helper program.