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fix(setup): mask dhcpcd.service to stop it racing vpcd's DHCP client (mulga-siv-32)

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Debian 13 (Trixie) auto-enables a standalone dhcpcd.service when
dhcpcd-base is installed. It binds br-wan and races vpcd's in-process
nclient4 client for upstream OFFERs, draining the lab DHCP pool with
duplicate leases and causing intermittent DORA timeouts in the e2e
public-IP path (worst on cell-8 real-multi/dhcp/debian-13).

The ISO installer already masks the unit at install time
(cmd/installer/install/install.go:316). The binary install path used by
e2e nightly missed it, so debian hosts installed via setup.sh ran with
both DHCP clients live. Mirror the ISO mask here.

Ubuntu hosts are unaffected (dhcpcd-base does not auto-enable
dhcpcd.service on Noble).
This commit is contained in:
joshsiv-mulga
2026-04-29 13:39:36 +10:00
parent 72eb43f71c
commit bc33c72c76
1 changed files with 7 additions and 0 deletions
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scripts/setup.sh
+7
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@@ -221,6 +221,13 @@ install_apt_deps() {
ovn-central ovn-host openvswitch-switch dhcpcd-base \ ovn-central ovn-host openvswitch-switch dhcpcd-base \
> /dev/null > /dev/null
# Mask the standalone dhcpcd.service auto-enabled on Debian Trixie. It
# binds br-wan and competes with vpcd's nclient4 for OFFERs, draining
# the upstream pool and causing intermittent DORA failures. The ISO
# installer does the same mask (cmd/installer/install/install.go).
$SUDO systemctl disable --now dhcpcd.service 2>/dev/null || true
$SUDO systemctl mask dhcpcd.service 2>/dev/null || true
info "System dependencies installed" info "System dependencies installed"
} }