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lab/bastion/tests/integration/helpers
Michal df2dfc5d71
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fix(bastion): pin the VyOS boot NIC by MAC, and detect pre-installer stalls
Both Protectli VP2440s failed to install on real hardware: they fetched
kernel+initrd and then went silent. The console showed why —

  Looking for a connected Ethernet interface ... e2 ? e3 ? e4 ? e5 ?
  Connected e4 found
  Connected e5 found
  [4.595647] igc 0000:02:00.0 e2: NIC Link is Up
  IP-Config: e4 ... no response after 15 secs - giving up
  Unable to find a live file system on the network

live-boot picks the first *connected* interface. The i40e SFP+ pair links
before the igc copper port (up at 4.6s), so it chose the fiber ports, which
have no DHCP, and never tried the NIC that actually PXE booted.

Fix: pass BOOTIF=01-<mac> on the kernel cmdline. live-boot's
Device_from_bootif() (verified present in this image) matches it against
/sys/class/net and sets DEVICE directly. The MAC comes from the dispatch
key — i.e. exactly the NIC that PXE booted — which is more reliable than
iPXE's ${net0} on a box where the booting NIC may not be net0.

Why the integration test missed it: the VM had ONE NIC, so "first connected
interface" was trivially correct, and virtio links instantly so there was no
negotiation race. createPxeVm now takes decoyNics, attaching extra NICs
ahead of the PXE NIC on a network with no route to the bastion; the VyOS
test uses 2. Without BOOTIF that reproduces the hardware failure. getVmMac
is network-aware so it still returns the booting NIC.

Also: the bastion had every clue and said nothing — it logged INSTALL
STARTED, served kernel+initrd, then nothing for 7 minutes. dispatch now
stamps dispatched_at, and /api/logs/:mac returns stalled_for_s / stalled
(8 min threshold, sized for the ~600MB squashfs fetch), so a machine wedged
before the installer environment comes up is diagnosable without a console.

Verified on hardware: both firewalls installed, bond0 802.3ad + VLANs
2/3/9/10/200 + VRRP (priority 200/100, VIP .254 per VLAN) applied, and
/config/lab-provisioned written.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DMVzWZgiKW2wquf5z8S1yH
2026-08-12 12:35:09 +01:00
..