*** This bug is a duplicate of bug 1732739 ***
https://bugs.launchpad.net/bugs/1732739
Event though both test failures where triggered by the change from
ifupdown to systemd-networkd/resolvd the reasons for the problems are
completely different. For lxd the problem is in the dep8 test script.
For docker it is turns out to be a problem of docker itself to
automatically guess which nameserver to use.
For this reason I created three individual bug reports:
- bug #1732739 -> lxd breakage
- bug #1732747 -> additional DNS checks and logging (pre-req
for docker fix)
- bug #1732717 -> docker breakage
I will duplicate this bug against the first new one because the bug
description was talking mostly about this one. And then use the new bug
reports for driving the delivery of fixes.
** This bug has been marked a duplicate of bug 1732739
lxd test broken by test systemd-resolv environment
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Packages, which is subscribed to ubuntu-fan in Ubuntu.
https://bugs.launchpad.net/bugs/1718548
Title:
ubuntu-fan autopkgtests are broken against systemd-resolved
Status in ubuntu-fan package in Ubuntu:
Triaged
Status in ubuntu-fan source package in Xenial:
Fix Committed
Status in ubuntu-fan source package in Zesty:
Fix Committed
Bug description:
Now that 17.10 has migrated to netplan+systemd-networkd+systemd-
resolved by default, ubuntu-fan autopkgtests are failing; at least one
reason for this failure is wrong detection of the default network
interface because autopkgtest environments appear for some reason to
be getting multiple default routes:
autopkgtest [20:14:59]: test lxd: [-----------------------
Error: either "dev" is duplicate, or "ens2" is a garbage.
II: Auto-init LXD...
LXD has been successfully configured.
II: Creating Fan Bridge...
/usr/sbin/fanatic: .0.0/16: unknown underlay network format
FAIL: Error on enable-fan
autopkgtest [20:15:10]: test lxd: -----------------------]
(https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
/autopkgtest-artful/artful/amd64/u/ubuntu-
fan/20170916_203221_4f037@/log.gz)
The other part failure appears to be a race with systemd-resolved in
setting up the network inside of docker containers:
autopkgtest [17:25:39]: test docker: [-----------------------
Running in the Canonical CI environment
II: Auto-create Fan Bridge...
configuring fan underlay:10.220.0.0/16 overlay:250.0.0.0/8
II: Create docker Fan Network...
configuring docker for underlay:10.220.0.0/16 overlay:250.0.0.0/8 (fan-250
250.4
6.84.0/24)
1c8a03aa50ab88b997c3b3aee88bfa6933b14368f1594db4a800c2ae8d62074f
II: Test docker...
local docker test: pulling container images ...
Using default tag: latest
latest: Pulling from library/ubuntu
d5c6f90da05d: Pulling fs layer
[...]
2b8db33536d4: Pull complete
Digest:
sha256:2b9285d3e340ae9d4297f83fed6a9563493945935fc787e98cc32a69f5687641
Status: Downloaded newer image for ubuntu:latest
local docker test: creating test container ...
5cbdd232b71bc0738f27f1fa3eae4360716bfe3f8cea976874bf6309b1843169
slave: installing ping ...
W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/xenial/InRelease
Temporary failure resolving 'archive.ubuntu.com'
[...]
E: Unable to locate package iputils-ping
slave: installing nc ...
E: Unable to locate package netcat-openbsd
test master: ping test (250.46.84.2) ...
test slave: ping test (250.46.84.1) ...
test slave: ping test ... FAIL
--- transcript start ---
/bin/sh: 108: ping: not found
--- transcript end ---
test slave: short data test (250.46.84.2 -> 250.46.84.1) ...
test master: ping test ... PASS
test master: short data test (250.46.84.1 -> 250.46.84.2) ...
autopkgtest [20:12:19]: ERROR: timed out on command [...]
I've reproduced this problem locally and prepared a partial patch
based on a similar fix to the docker.io package's autopkgtests - but
so far this only fixes races in the lxd test, not in the docker test,
so it needs further investigation.
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