On Mon, 17 May 2021 at 16:40, Frank Ch. Eigler <fche@redhat.com> wrote:
Daniel P. Berrangé <berrange@redhat.com> writes:

> The container runtime in the host OS will have configured most mount
> points before the container starts. It would be relatively uncommon
> for processes inside the container image to need to mount additional
> volumes later.

That's fair, but util-linux contains many other tools that may be useful
at runtine within a containerized tool (logger, flock, lsmem, rename,
taskset, whereis, others?).  Some those be moved somewhere else?

/usr/bin/* files from f33's util-linux:

cal chmem choom chrt col colcrt colrm column dmesg eject fallocate
fincore findmnt flock getopt hardlink hexdump i386 ionice ipcmk ipcrm
ipcs irqtop isosize kill last lastb linux32 linux64 logger login look
lsblk lscpu lsipc lsirq lslocks lslogins lsmem lsns mcookie mesg more
mount mountpoint namei nsenter prlimit raw rename renice rev script
scriptlive scriptreplay setarch setpriv setsid setterm su taskset ul
umount uname26 unshare utmpdump uuidgen uuidparse wall wdctl whereis
write x86_64

It is all about tradeoff between what **may** be useful and the size of the base image. In the container base image space, size is very important (see how successful is Alpine) and we have to make tradeoff in terms of what tools are included by default in the image.

To get an idea on how Fedora does compared to some other distros

REPOSITORY                                     TAG      IMAGE ID      CREATED       SIZE
registry.fedoraproject.org/fedora              rawhide  5e91f1acac7d  47 hours ago  187 MB
registry.fedoraproject.org/fedora-minimal      latest   438d4fec7485  5 days ago    119 MB
docker.io/library/debian                       latest   4a7a1f401734  7 days ago    119 MB
registry.opensuse.org/opensuse/leap            latest   1a798c6c690f  5 days ago    108 MB
docker.io/library/ubuntu                       latest   7e0aa2d69a15  3 weeks ago   75.1 MB
docker.io/library/alpine                       latest   6dbb9cc54074  4 weeks ago   5.88 MB
 


- FChE
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