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[Launchpad Bug Tracker <1588547@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package curtin - 0.1.0~bzr399-0ubuntu1~14.04.1

---------------
curtin (0.1.0~bzr399-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * SRU current curtin
    - curtin/net: fix inet value for subnets, don't add interface attributes
      to alias (LP: #1588547)
    - improve net-meta network configuration (LP: #1592149)
    - reporting: set webhook handler level to DEBUG, no filtering
      (LP: #1590846)
    - tests/vmtests: add yakkety, remove vivid
    - curtin/net: use post-up for interface alias, resolve 120 second time out
      on Trusty when using interface aliases
    - vmtest: provide info on images used
    - fix multipath configuration and add multipath tests (LP: #1551937)
    - tools/launch and tools/xkvm: whitespace cleanup and bash -x
    - tools/launch: boot by root=LABEL=cloudimg-rootfs
    - Initial vmtest power8 support and TestSimple test.

curtin (0.1.0~bzr389-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * New upstream snapshot.
    * Detect and remove legacy /etc/network/interfaces.d/eth0.cfg from
      target (LP: #1577872)

curtin (0.1.0~bzr387-0ubuntu1~14.04.1) trusty-proposed; urgency=medium

  * sru current curtin (LP: #1577872)
  * debian/new-upstream-snapshot, debian/README.source: add
    new-upstream-snapshot and mention it in README.source
  * debian/control: drop python from curtin-common Depends.
     remove unnecessary Depends on util-linux as it is essential.
     python3-curtin, python-curtin: drop unnecessary 'curl' from Depends.
     python3-curtin, python-curtin: list oauthlib and yaml Depends
  * debian/control: add bcache-tools to curtin Depends.
  * New upstream snapshot.
    - fix timestamp not being updated in reported events
    - mdadm: resolve mdadm/bcache and trusty+hwe issues
    - fix support for 4k disks
    - emit source /etc/network/interfaces.d/*.cfg in
      rendered /etc/network/interfaces
    - net: introduce 'control' field to network configuration to allow
      for declaring manual controlled interfaces
    - disable cloud-init networking as curtin is the source of network config
    - block: wipe_volume improvements
    - reporter: enhance reporting events to include levels and
      improve usefullness of messages
    - network: add bonding tests and cleanup newline rendering
    - block: fix partition path issue with nvme devices
    - fix logic error in kernel installation
    - block: add debug regarding raid modules being missing on mdadm create
    - add s390x support to curtin and vmtest
    - support build on xenial where python3 pyflakes is split out
    - fix uefi install path on nvme devices
    - numerous unit tests and vmtests improvements. Add running
      of pylint for static checking.
    - Add bond parsing & improved source, source-directory parsing
      of /etc/network/interfaces.
    - move global dns-* options under auto lo in /etc/network/interfaces
    - partitioning: limited support for odd ordering of partition numbers
    - change use of mkfs.fat to mkfs.vfat and add dependency.
    - block-meta: use removable devices if no non-removable devices are
      found [Robert Clark]
    - Improve 'curtin mkfs' and move mkfs logic to block.mkfs fixes
      using btrfs on precise and trusty.
    - fix failures caused by systems with invalid system_clock
    - support bcache installation on precise
    - fix bug in install_grub to partition when storage_config provided
      fixing lvm installation on power8
    - block_meta: handle 'preserve' flag for raid devices
    - close file descriptors from --config= arguments
    - xenial: disable update-motd during an apt-get update
    - subp: add decode parameter, defaulting to replace.
      this fixes errors when output of a command had non-utf chars
    - support passing an integer or valid float to human2bytes
    - Use /proc/mounts to find missing mountpoints rather than relying
      entirely on lsblk as lsblk differs widely between ubuntu releases.
    - support extracting tar files compressed with xz or bzip or
      uncompressed. Previously required gzip compression.
    - Improve dependency checking and installation
      this fixes curtin running on precise and installing dependencies
      it needs.
    - Reduce chance udev race with mdadm opening /dev/mdX
    - Allow re-use of bcache cache devices with separate backing devices
    - invoke mkfs.ext3 or mkfs.ext4 with -F to fix issues found if
      target device had a filesystem already present.
    - Partition alignment and sizing fixes
    - Set bcache cache_mode if present in storage config
    - when apt-get update is called during installation, do not download
      translation files and source files, reducing chances for mismatch.
    - add system-install sub command. 'curtin system-install pastebinit'
      will install packages in a way guaranteed to not prompt.
    - add 'system-upgrade' command and config to easily update the
      system after installation before reboot.
    - fix reporting of FAIL when a subcommand used sys.exit(0)
    - grub-install: if fail to find mounted uefi partition, give more
      debug output
    - network config: add support for dns-search key in subnet and search
      in nameserver
    - Ensure required networking packages are installed in the target.
    - stop grub from going into graphical/vga mode on installed systems
    - curthooks: support specifying kernel/package without mapping
    - ChrootableTarget: do not attempt to change resolv.conf if
      there is no /etc directory
    - list the set of features that curtin has for library users.
      users can now check the FEATURES list for a specific feature.
    - fix bug in argument parsing --set mykey=foo=bar
    - in-target: add '--capture' to in-target and special case target=/
    - support declaring json in --set argument via --set=json:...
    - add reporting function to allow calling a webhook endpoint
      with status of curtin install.
    - Allow partprobe to return 1, which is expected when no partition table
      exists
    - support storage config providing /dev/disk/by-dname links
    - enable setting of verbosity and showtrace via config file
    - drop python-parted dependency
    - swap: use fallocate if possible for much faster swap file creation
    - support network-config, where networking configuration is declared
      in curtin config that will be applied to the host.
    - support storage-config, allowing curtin to install and use many
      different storage configurations (LVM, bcache, btrfs...)

 -- Scott Moser <smoser@xxxxxxxxxx>  Tue, 19 Jul 2016 15:03:33 -0400

** Changed in: curtin (Ubuntu Trusty)
       Status: Fix Committed => Fix Released

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Matching subscriptions: Ubuntu 16.04 Bugs
https://bugs.launchpad.net/bugs/1588547

Title:
  Generated bonding configuration is incorrect.

Status in curtin:
  Fix Committed
Status in MAAS:
  Opinion
Status in curtin package in Ubuntu:
  Fix Released
Status in curtin source package in Trusty:
  Fix Released
Status in curtin source package in Xenial:
  Fix Released

Bug description:
  [Impact]

   * Users attempting to configure nic bonding and using both ipv4 and ipv6
     encounter a misconfigured network due to a bug in curtin's handling of
     bond configuration and ipv6.  The error results in superflous 
     attributes and then broken ipv4 entries if preceeded by an ipv6
     address.

     This affects all curtin releases which support networking
     configuration.
     
   * This SRU fixes bonding and ipv6 configurations by no longer emitting
     attributes for aliased interfaces and calculating the correct
     inet type for a given interface.

  
  [Test Case]

   * On a Xenial 16.04 system
      - apt-get install curtin
      - cat >test.yaml <<EOF
  # YAML example of a simple network config
  network:
      version: 1
      config:
          # Physical interfaces.
          - type: physical
            name: eth0
            mac_address: "c0:d6:9f:2c:e8:80"
            subnets:
                - type: static
                  address: fde9:8f83:4a81:1:0:1:0:6/64
                - type: static
                  address: 192.168.0.1/24
  EOF
      - curtin apply_net -c test.yaml --target target

  PASS: both greps return zero
  FAIL: either grep returns non-zero

      - grep "^iface eth0 inet6 static" target/etc/network/interfaces
      - grep "^iface eth0:1 inet static" target/etc/network/interfaces

  
  [Regression Potential]

   * Low; users of this configuration would be broken already


  
  [Original Description]

  [Environment]

  MAAS 2.0

  [Description]

  Given the following configuration:
  http://img.ctrlv.in/img/16/06/02/5750ac35c78f8.png

  The resulting /etc/network/interfaces looks as following:

  http://paste.ubuntu.com/16931445/

  Some bad aspects of the resulting configuration are:

  1) An ipv4 address is configured on the alias, while an ipv6 address
  was expected,

  auto bond0:1
  iface bond0:1 inet6 static
      address 172.27.72.7/26

  2) It seems that there is no need to configure the bond-* options on the alias interfaces as these
  options are inherited.

  3) Could be possible to describe why and how the hwaddresses are
  selected for the aliases?

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