networking fallback should ignore bridges

Bug #1569974 reported by Scott Moser on 2016-04-13
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
cloud-init
Medium
Unassigned
cloud-init (Ubuntu)
Medium
Unassigned

Bug Description

Serge pointed me at an an issue with cloud-init's fallback networking.
It will consider bridges as possible devices to dhcp on.
Since these bridges are configured only by things like lxd (not /etc/network/interfaces) they're not going to be good devices to 'dhcp' on and get a fallback networking configuration.

My short solution is to just ignore bridge devices when searching.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: cloud-init 0.7.7~bzr1200-0ubuntu1 [modified: lib/systemd/system/cloud-init-local.service usr/lib/python3/dist-packages/cloudinit/net/__init__.py]
ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6
Uname: Linux 4.4.0-18-generic x86_64
ApportVersion: 2.20.1-0ubuntu1
Architecture: amd64
Date: Wed Apr 13 14:22:57 2016
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
SourcePackage: cloud-init
UpgradeStatus: No upgrade log present (probably fresh install)

Related branches

Scott Moser (smoser) wrote :
Scott Moser (smoser) on 2016-04-13
Changed in cloud-init:
status: New → Confirmed
importance: Undecided → Medium
Changed in cloud-init (Ubuntu):
status: New → Confirmed
importance: Undecided → Medium
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package cloud-init - 0.7.7~bzr1208-0ubuntu1

---------------
cloud-init (0.7.7~bzr1208-0ubuntu1) xenial; urgency=medium

  * New upstream snapshot.
    - phone_home: allow usage of fqdn (LP: #1566824) [Ollie Armstrong]
    - chef: straighten out validation_cert and validation_key (LP: #1568940)
    - skip bridges when generating fallback networking (LP: #1569974)
    - rh_subscription: only check subscription if configured (LP: #1536706)
    - SmartOS, CloudSigma: fix error when dmi data is not availble
      (LP: #1569469)
    - DataSourceNoCloud: fix check_instance_id when upgraded (LP: #1568150)
    - lxd: adds basic support for dpkg based lxd-bridge
      configuration. (LP: #1569018)
    - centos: Ensure that a resolve conf object is written as a string.
      (LP: #1479988)

 -- Scott Moser <email address hidden> Wed, 13 Apr 2016 13:19:03 -0400

Changed in cloud-init (Ubuntu):
status: Confirmed → Fix Released
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