Figure out networking in UKI example

containers / composefs-rs

Rust library for the composefs filesystem

Apache License 2.0

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Figure out networking in UKI example #22

Closed allisonkarlitskaya closed 1 week ago

allisonkarlitskaya commented 2 weeks ago

If we want to pull down updates in the booted container we need a network.

There's a few things blocking that right now.

[ ] can't install kernel modules in the base image, making it impossible to load the virtio network driver after booting
[ ] /etc is readonly and /var too. That's gonna make it hard to get a dhcp lease and write /etc/resolv.conf (although this should probably be configured as a symlink to systemd-resolved)

allisonkarlitskaya commented 1 week ago

This is working since 46bb269d5d3c5131bba29b412798f1c92b7b0f21

The kernel module issue was fixed by force-loading them in the initramfs. This is obviously not ideal. The /var issue was fixed by bind-mounting /sysroot/var, and /etc/resolv.conf is now a symlink to the systemd resolver stuff in /run.