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<travier[m]>
jmarrero: Thanks!
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<plundra>
(New to coreos; as in have barely booted it) How do people configure "dynamic" storage? In my case, I'd like to assemble all instance storage of an EC2-instance, to raid0 and mount somewhere. The exact path in /dev/disk/by-id varies (serial kinda), and the ignition conf seems to want a list of exact devices?
<plundra>
So like, I'd wante devices: to be the list equivalent to /dev/disk/by-id/nvme-Amazon_EC2_NVMe_Instance_Storage_*
<baude>
im trying to understand a problem here where I make some changes to ignition; the changes are reflected in overrides/rootfs but I do not see them *in* the initrd itself. https://paste.centos.org/view/16fa7fd8 shows some details
<baude>
am I putting the changed stuff in the wrong spot ?
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<plundra>
dustymabe: Sure, I'll have a look. Hopefully will get around to test for real to better understand what to ask for too :-)
<plundra>
dustymabe: Thanks. And yeah 1122 brings up what I'd like. The /dev/.../ephemeral{N..M}. I guess wildcard expanding into a list is more intrusive to change.
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<baude>
dustymabe: any thoughts? ^^^
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<dustymabe>
baude: that looks right..
<baude>
i tried --force --force-image on cosa build
<dustymabe>
when you boot a built image do you see it in the filesystem?
<baude>
lemme see if i have enuff scroll back
<baude>
dustymabe: am i just looking for that file ?
<dustymabe>
yeah, look for the file to exist and have your modications
<baude>
dustymabe: would it be in the build log or you saying i should mount the qcow and poke around ?
<dustymabe>
inside the qcow - can you `cosa run` it?
<baude>
i get json metadata errors likely because applehv isnt a real platform yet in cosa's mind
<dustymabe>
change your command to `cosa run --qemu-image builds/latest/aarch64/fedora-coreos-38.20230621.dev.4-qemu.aarch64.qcow2` and see if that works
<baude>
dustymabe: same but i did confirm on the rootfs, the changed file is indeed present
<dustymabe>
ok, so now then you need to make sure that file got into the initrd.. if you could boot the thing then you could run rd.break=cmdline and actually look at the file in the initramfs
<dustymabe>
or you can just extract the initramfs file and check the contents that way
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<baude>
it boots and fails after ignition and drops me to a command line
<baude>
are we sure this is not known by a different name in the initrd?
<baude>
b/c even lsinitrd does not show it
<baude>
dustymabe: I dont see that file in fcos created images either, so i must be cross-wired somewhere
<dustymabe>
meeting, brb
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<dustymabe>
baude: you're right. module-setup just tells dracut what to put in the initramfs - so module-setup itself won't exist in the initrd
<baude>
right
<dustymabe>
but does lsinitrd show that vsock is getting in the initrd?
<baude>
im learning
<baude>
yes
<dustymabe>
so it's included, but now it needs to get loaded (and nothing is loading it)
<baude>
so it looks like i need to use distro.ModprobeCmd() in ingition
<dustymabe>
?
<baude>
correct
<dustymabe>
you could hack for now and `rd.break=cmdline` then `modprobe vsock` and exit and see if it works
<baude>
dustymabe: btw, i am using an apple m1 that boots to linux for a cosa machine ... works well and reasonably fast
<dustymabe>
baude: send me one
<dustymabe>
though I can't promise I won't try to put linux on it (which would invalidate the point of me having it probably)
<baude>
well that is what i did
<baude>
fwiw, you still gotta have a mini-macos install
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<baude>
dustymabe: im cooking with gas now!
<dustymabe>
baude: nice.. did the rd.break thing work?
<baude>
didnt try , i just wired it up ... one more step and i should have usable stuff and can then do some fixes, etc and starting making prs
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<Nemric>
o/ 2 of 3 coreos server are PXE booting for full ram use, Each update will change sshd keys, so I delete odl keys from known hosts file
<Nemric>
I use HDD for /var mount and I'd to fond the better way you know about saving sshd keys permanently ... any clues please ?
<Nemric>
*fond -> find
<dustymabe>
Nemric: you mean the SSH host keys? you can just populate them using Ignition and then new ones won't get randomly generated
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<Nemric>
yes, I meant host keys, but don't really want them to be stored in any ign files for security reasons (I d'ont really car about that but as I want to promote it my cmopany it's for the less mandatory ^^ ) The question of securing PXE boot and http(s) server called is quite a big subject
<dustymabe>
do you have persistent storage?
<dustymabe>
you could store the ssh host keys there
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<Nemric>
yes, persistent storage is on /var only
<Nemric>
everything else is volatil
<Nemric>
(the power of coreos) !
<dustymabe>
Nemric: maybe you could store the keys in /var/ somewhere (but obviously make them only readable by root
<dustymabe>
you could drop a file in /etc/ssh/sshd_config.d/ and specify `HostKey /var/foo/mykey` etc..
<dustymabe>
you'd probably also want to disable sshd-keygen@.service
<Nemric>
dustymabe: thanks for the tips, I'll give it a try soon ! ;)
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