Public bug reported:
I have 2 systemd-nspawn containers running on an ubuntu 18.04 server used for
an internal test automation service.
They each use a private network using the nethork-veth option and expose a
single port.
The host system runs nginx and routes traffic to the two containers.
After running apt upgrade the container ports were no longer reachable
from the outside causing the server to repond with HTTP 502 bad gateway
on the host.
To resolve the situation I had to restart the two containers running:
- machinectl stop helvetest-prod
- machinectl start helvetest-prod
- machinestl stop helvetest-dev
- machinectl start helvetest-dev
Everything was fine after that.
The two containers are run as instances of the built-in systemd-nspawn@ service.
I use the following nspawn configuration:
root@helvetest:/etc/systemd/nspawn# ls -lrth
total 8.0K
-rw-r--r-- 1 root root 92 Apr 11 07:09 helvetest-dev.nspawn
-rw-r--r-- 1 root root 92 Apr 12 11:34 helvetest-prod.nspawn
root@helvetest:/etc/systemd/nspawn# cat helvetest-prod.nspawn
[Files]
BindReadOnly=/etc/systemd/network
[Network]
VirtualEthernet=yes
Port=tcp:6640:6640
root@helvetest:/etc/systemd/nspawn# cat helvetest-dev.nspawn
[Files]
BindReadOnly=/etc/systemd/network
[Network]
VirtualEthernet=yes
Port=tcp:5540:5540
Host details
# lsb_release -rd
Description: Ubuntu Bionic Beaver (development branch)
Release: 18.04
Partial apt upgrade logs
Preparing to unpack .../libnss-systemd_237-3ubuntu8_amd64.deb ...
Unpacking libnss-systemd:amd64 (237-3ubuntu8) over (237-3ubuntu7) ...
Preparing to unpack .../libnss-mymachines_237-3ubuntu8_amd64.deb ...
Unpacking libnss-mymachines:amd64 (237-3ubuntu8) over (237-3ubuntu7) ...
Preparing to unpack .../systemd-container_237-3ubuntu8_amd64.deb ...
Unpacking systemd-container (237-3ubuntu8) over (237-3ubuntu7) ...
Preparing to unpack .../libsystemd0_237-3ubuntu8_amd64.deb ...
Unpacking libsystemd0:amd64 (237-3ubuntu8) over (237-3ubuntu7) ...
Setting up libsystemd0:amd64 (237-3ubuntu8) ...
ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: systemd-container 237-3ubuntu8
ProcVersionSignature: Ubuntu 4.15.0-13.14-generic 4.15.10
Uname: Linux 4.15.0-13-generic x86_64
ApportVersion: 2.20.9-0ubuntu4
Architecture: amd64
Date: Mon Apr 16 08:53:20 2018
SourcePackage: systemd
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: Confirmed
** Tags: amd64 apport-bug bionic uec-images
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https://bugs.launchpad.net/bugs/1764338
Title:
systemd-nspawn container networking lost after systemd-container
upgrade
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