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Merge "Revert "Fallback to persistent netifs names with systemd""

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Zuul 2022-05-03 00:26:20 +00:00 committed by Gerrit Code Review
commit 45abd8ef95
4 changed files with 21 additions and 2 deletions
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1
diskimage_builder/elements/dhcp-all-interfaces/install.d/50-dhcp-all-interfaces
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@ -72,7 +72,6 @@ elif [ "$DIB_INIT_SYSTEM" == "systemd" ]; then
install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-interface@.service /usr/lib/systemd/system/dhcp-interface@.service install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-interface@.service /usr/lib/systemd/system/dhcp-interface@.service
install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-all-interfaces-udev.rules /etc/udev/rules.d/99-dhcp-all-interfaces.rules install -D -g root -o root -m 0644 ${SCRIPTDIR}/dhcp-all-interfaces-udev.rules /etc/udev/rules.d/99-dhcp-all-interfaces.rules
sed -i "s/TimeoutStartSec=DIB_DHCP_TIMEOUT/TimeoutStartSec=$(( ${DIB_DHCP_TIMEOUT:-30} * 2 ))s/" /usr/lib/systemd/system/dhcp-interface@.service sed -i "s/TimeoutStartSec=DIB_DHCP_TIMEOUT/TimeoutStartSec=$(( ${DIB_DHCP_TIMEOUT:-30} * 2 ))s/" /usr/lib/systemd/system/dhcp-interface@.service
install -D -g root -o root -m 0644 ${SCRIPTDIR}/udev-net-setup-link.rules /etc/udev/rules.d/80-net-setup-link.rules
elif [ "$DIB_INIT_SYSTEM" == "sysv" ]; then elif [ "$DIB_INIT_SYSTEM" == "sysv" ]; then
install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.init /etc/init.d/dhcp-all-interfaces install -D -g root -o root -m 0755 ${SCRIPTDIR}/dhcp-all-interfaces.init /etc/init.d/dhcp-all-interfaces
update-rc.d dhcp-all-interfaces defaults update-rc.d dhcp-all-interfaces defaults

2
diskimage_builder/elements/dhcp-all-interfaces/install.d/dhcp-all-interfaces-udev.rules
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@ -1 +1 @@
SUBSYSTEM=="net", KERNEL!="lo", ACTION=="add", TAG+="systemd", ENV{SYSTEMD_WANTS}+="dhcp-interface@$name.service" SUBSYSTEM=="net", KERNEL!="lo", ACTION=="add|move", TAG+="systemd", ENV{SYSTEMD_WANTS}+="dhcp-interface@$name.service"

0
diskimage_builder/elements/dhcp-all-interfaces/install.d/udev-net-setup-link.rules
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20
releasenotes/notes/dhcp-all-interfaces-debian-issue-2ec7f1a5186f0b16.yaml Normal file
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@ -0,0 +1,20 @@
issues:
- |
The dhcp-all-interfaces element attempts to work with "predictable
interface names". During boot the name of the interfaces is changed from
ethX to the new scheme, for example enpXsX; depending on the Linux kernel
this move may be captured by udev as an "add" or "move" event. The
dhcp-all-interfaces udev rule has been updated to match against both
possible events. If you prefer to not use predictable names your image
builds can set DIB_BOOTLOADER_DEFAULT_CMDLINE with net.ifnames=0 or mask
the default policy with `ln -s /dev/null /etc/systemd/network/99-default.link`.
This process is documented by systemd:
https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
Note that this update reverts previous changes to disable predictable
interface names completely when using dhcp-all-interfaces. Predictable
device names were disabled in an effort to make dhcp-all-interfaces
function on Debian Bullseye, but this broke any users that wished to
use predictable device names. Instaed we make predictable device names
work on Debian Bullseye and allow users to disable predictable device
names should they choose to.