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