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[Launchpad Bug Tracker <1691135@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package cloud-init - 0.7.9-153-g16a7302f-
0ubuntu1~17.04.1

---------------
cloud-init (0.7.9-153-g16a7302f-0ubuntu1~17.04.1) zesty-proposed; urgency=medium

  * New upstream snapshot.
    - net: fix reading and rendering addresses in cidr format.
      [Dimitri John Ledkov] (LP: #1689346, #1684349)
    - disk_setup: udev settle before attempting partitioning or fs creation.
      (LP: #1692093)
    - GCE: Update the attribute used to find instance SSH keys.
      [Daniel Watkins] (LP: #1693582)
    - nplan: For bonds, allow dashed or underscore names of keys.
      [Dimitri John Ledkov] (LP: #1690480)
    - tests: python2.6: fix unit tests usage of assertNone and format.
    - tests: update docstring on test_configured_list_with_none
    - fix tools/ds-identify to not write None twice.
    - tox/build: do not package depend on style requirements.
    - tests: ntp: Restructure cc_ntp unit tests. [Chad Smith]
    - flake8: move the pinned version of flake8 up to 3.3.0
    - tests: Apply workaround for snapd bug in test case. [Joshua Powers]
    - RHEL/CentOS: Fix dual stack IPv4/IPv6 configuration.  [Andreas Karis]
    - disk_setup: fix several issues with gpt disk partitions. (LP: #1692087)
    - function spelling & docstring update [Joshua Powers]
    - tests: Fix unittest bug in ntp tests. [Joshua Powers]
    - tox: move pylint target to 1.7.1
    - Fix get_interfaces_by_mac for empty macs (LP: #1692028)
    - DigitalOcean: remove routes except for the public interface.
      [Ben Howard] (LP: #1681531.)
    - netplan: pass macaddress, when specified, for vlans
      [Dimitri John Ledkov] (LP: #1690388)
    - doc: various improvements for the docs on cc_users_groups.
      [Felix Dreissig]
    - cc_ntp: write template before installing and add service restart
      [Ryan Harper] (LP: #1645644)
    - tests: fix cloudstack unit tests to avoid accessing
      /var/lib/NetworkManager [Lars Kellogg-Stedman]
    - tests: fix hardcoded path to mkfs.ext4 [Joshua Powers] (LP: #1691517)
    - Actually skip warnings when .skip file is present.
      [Chris Brinker] (LP: #1691551)
    - netplan: fix netplan render_network_state signature.
      [Dimitri John Ledkov] (LP: #1685944)
    - Azure: fix reformatting of ephemeral disks on resize to large types.
      (LP: #1686514)
    - make deb: Add devscripts dependency for make deb.
      Cleanup packages/bddeb. [Chad Smith] (LP: #1685935)
    - openstack: fix log message copy/paste typo in _get_url_settings
      [Lars Kellogg-Stedman]
    - unittests: fix unittests run on centos [Joshua Powers]
    - Improve detection of snappy to include os-release and kernel cmdline.
      (LP: #1689944)
    - Add address to config entry generated by _klibc_to_config_entry.
      [Julien Castets] (LP: #1691135)
    - sysconfig: Raise ValueError when multiple default gateways are present.
      [Chad Smith] (LP: #1687485)
    - FreeBSD: improvements and fixes for use on Azure
      [Hongjiang Zhang] (LP: #1636345)
    - Add unit tests for ds-identify, fix Ec2 bug found.
    - fs_setup: if cmd is specified, use shell interpretation.
      [Paul Meyer] (LP: #1687712)
    - doc: document network configuration defaults policy and formats.
      [Ryan Harper]
    - doc: Fix name of "uri" key in docs for "cc_apt_configure" module
      [Felix Dreissig]
    - tests: Enable artful in integration tests [Joshua Powers]

 -- Scott Moser <smoser@xxxxxxxxxx>  Fri, 26 May 2017 16:14:09 -0400

** Changed in: cloud-init (Ubuntu Zesty)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1691135

Title:
  address field not set when reading cmdline/initramfs configured
  network

Status in cloud-init:
  Fix Committed
Status in cloud-init package in Ubuntu:
  Fix Released
Status in cloud-init source package in Xenial:
  Fix Released
Status in cloud-init source package in Yakkety:
  Fix Released
Status in cloud-init source package in Zesty:
  Fix Released

Bug description:
  === Begin SRU Template ===
  [Impact]
  When cloud-init sees 'ip=' on the kernel command line, it will take
  the networking configuration that is written by the ipconfig tool,
  and convert it into the proper network config for the system
  (/etc/network/interfaces).

  This works well for the 'ip=dhcp' and 'ip=dhcp6' cases, but did not
  work correctly for the "statick" path with a command line like:
     ip=<client-ip>::<gw-ip>:<netmask>:<hostname>:device:...

  Cloud-init would stack trace when trying to bring up this networking
  resulting in a system that did not boot properly.

  [Test Case]
  The basic idea below is:
   a.) launch an instance with proposed version of cloud-init.
   b.) inside instance, use cloud-init's net library to convert
       'net-eth1.cfg' into a different format, and the render that format
       using cloud-init's trunk tool 'net-convert.py'

  ## launch an instance.
  $ release=xenial
  $ ref=$release-proposed
  $ lxc-proposed-snapshot --proposed --publish $release $ref
  $ lxc launch $ref $name
  $ lxc exec $ref $name /bin/bash

  ## get render tool
  % wget https://bugs.launchpad.net/ubuntu/+source/cloud-init/+bug/1691135/+attachment/4888001/+files/bug-1691135.sh -O bug-1691135.sh
  % sh ./bug-1691135.sh

  ## if that runs to completion, then it will show the /etc/network/interfaces
  ## file and the netplan etc/netplan/50-cloud-init.yaml file.
  ## if it fails it will stack trace.

  As seen in the upstream commit, the change is in a very focused path,
  only changing something when the protocol was 'static'.

  [Regression Potential]
  Potential for regression would be limited to the 'ip=' command line path.

  [Other Info]
  Upstream commit at
    https://git.launchpad.net/cloud-init/commit/?id=9d437489b

  === End SRU Template ===

  As reported by user niluje, if the initramfs tools write a config that
  has static networking, then cloud-init would not populate the address
  field in its rendered network config (_klibc_to_config_entry).

  The result would be incomplete or invalid configuration, and attempt
  to render that configuration would result in stacktrace due to
  KeyError.

  This can be seen in trunk with the net-convert tool as below.  Editing
  the yaml and uncommenting the 'address' line will work.

  $ cat /tmp/foo.yaml
  network:
    version: 1
    config:
     - name: eth1
       type: physical
       subnets:
        - 'type': 'static'
          'broadcast': '10.0.0.255'
          'control': 'manual'
          'gateway': '10.0.0.1'
          'dns_search': ['foo.com']
          'netmask': '255.255.255.0'
          'dns_nameservers': ['10.0.1.1']
  #        'address': '10.0.0.2'
  EOF

  $ PYTHONPATH=$PWD ./tools/net-convert.py  --network-data=/tmp/foo.yaml --kind=yaml --output-kind=eni -d /tmp/out.d
  Input YAML
  config:
  -   name: eth1
      subnets:
      -   broadcast: 10.0.0.255
          control: manual
          dns_nameservers:
          - 10.0.1.1
          dns_search:
          - foo.com
          gateway: 10.0.0.1
          netmask: 255.255.255.0
          type: static
      type: physical
  version: 1

  Traceback (most recent call last):
    File "./tools/net-convert.py", line 82, in <module>
      main()
    File "./tools/net-convert.py", line 58, in main
      ns = network_state.parse_net_config_data(pre_ns)
    File "/home/smoser/src/cloud-init/cloud-init/cloudinit/net/network_state.py", line 42, in parse_net_config_data
      nsi.parse_config(skip_broken=skip_broken)
    File "/home/smoser/src/cloud-init/cloud-init/cloudinit/net/network_state.py", line 225, in parse_config
      self.parse_config_v1(skip_broken=skip_broken)
    File "/home/smoser/src/cloud-init/cloud-init/cloudinit/net/network_state.py", line 240, in parse_config_v1
      handler(self, command)
    File "/home/smoser/src/cloud-init/cloud-init/cloudinit/net/network_state.py", line 89, in decorator
      return func(self, command, *args, **kwargs)
    File "/home/smoser/src/cloud-init/cloud-init/cloudinit/net/network_state.py", line 296, in handle_physical
      if ':' in subnet['address']:
  KeyError: 'address'

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