[systemd-devel] systemd-networkd and systemd-nspawn: missing host-side network

[Tom Gundersen]

On Mon, Apr 27, 2015 at 6:50 AM, Kai Krakow <hurikhan77 at gmail.com> wrote:
> I've created a container with systemd-nspawn, "machinectl enable"d it, then
> added machines.target to my default target (systemctl enable
> machines.target) so that containers will be autostarted on boot. That works
> so far.
>
> But I discovered that systemd-networkd no longer configures my normal
> ethernet device during boot (it's configured as dhcp client). It just
> configures the ve-* device and that's it. After I manually restart networkd,
> all links are configured.
>
> Steps to reproduce:
>
> $ cat /etc/systemd/network/80-dhcp.network
> [Match]
> Name=en*
> [Network]
> DHCP=yes
> [DHCP]
> UseDomains=true
>
> $ cat /etc/systemd/network/90-veth.network
> # This was added because otherwise after reboot, ve-XXXX is stuck in
> # mode "configuring" when looking at networkctl, it changes nothing
> # for the following behaviour, tho...
> [Match]
> Name=ve-*
> [Network]
> DHCP=no
>
> $ machinectl enable test-machine
> $ systemctl enable machines.target
> $ systemctl reboot
> ...[rebooting]...
>
> $ networkctl
> IDX LINK             TYPE               OPERATIONAL SETUP
>   1 lo               loopback           n/a         n/a
>   2 enp4s0           ether              n/a         n/a
>   3 sit0             sit                n/a         n/a
>   4 ve-XXXX          ether              routable    configured
>
> $ ifconfig
> # shows only lo and ve-XXXX

Hm? ifconfig does not show enp4s0? How about "ip link"?

> $ systemctl restart systemd-networkd
> $ networkctl
> IDX LINK             TYPE               OPERATIONAL SETUP
>   1 lo               loopback           carrier     unmanaged
>   2 enp4s0           ether              routable    configured
>   3 sit0             sit                off         unmanaged
>   4 ve-XXXX          ether              routable    configured

Which version did you observe this in? Is this reproducible with
current git HEAD? If so, could you attach "$ networkctl status enp4s0"
and the output of journalctl -b -u systemd-networkd (preferably after
enabling debug logging in networkd by setting
Environment=SYSTEMD_LOG_LEVEL=debug in the networkd service file).

Cheers,

Tom