[Bug 1240972] Re: [SRU] maas dhcp.conf template not adding ignore-client-uids unless using raring or later

[Mathew Hodson]

** Changed in: maas (Ubuntu Saucy)
   Importance: Undecided => High

** Changed in: maas (Ubuntu)
       Status: Confirmed => Fix Released

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Title:
  [SRU] maas dhcp.conf template not adding ignore-client-uids unless
  using raring or later

Status in ubuntu-cloud-archive:
  Fix Released
Status in MAAS:
  Fix Released
Status in maas package in Ubuntu:
  Fix Released
Status in maas source package in Saucy:
  Fix Released

Bug description:
  1. Description of the problem:

  The maas dhcpd.conf.template only adds ignore-client-uids if using
  raring or later. Packages in the cloud-tools archive should work on
  precise and require this option for dhcpd. I have verified that dhcpd
  starts after adding ignore-client-uids

  root at maas1000:~# cat /etc/maas/templates/dhcp/dhcpd.conf.template
  ...
  subnet {{subnet}} netmask {{subnet_mask}} {
         filename "{{bootloader}}";
         {{if platform_codename >= 'raring'}}
         ignore-client-uids true;
         {{endif}}
         option subnet-mask {{subnet_mask}};

  2. Ubuntu release, software version, Release Number and Architecture
  of the selected components.

  root at maas1000:/etc/maas/templates/dhcp# lsb_release -a
  No LSB modules are available.
  Distributor ID:	Ubuntu
  Description:	Ubuntu 12.04.3 LTS
  Release:	12.04
  Codename:	precise

  root at maas1000:~# apt-cache policy maas-cluster-controller
  maas-cluster-controller:
    Installed: 1.4+bzr1693+dfsg-0ubuntu2~ctools0
    Candidate: 1.4+bzr1693+dfsg-0ubuntu2~ctools0
    Version table:
   *** 1.4+bzr1693+dfsg-0ubuntu2~ctools0 0
          500 http://10.0.0.1/ubuntu-cloud/ubuntu/ precise-updates/cloud-tools/main amd64 Packages
          100 /var/lib/dpkg/status
       1.2+bzr1373+dfsg-0ubuntu1~12.04.2 0
          500 http://10.0.0.1/ubuntu/ precise-updates/main amd64 Packages

  root at maas1000:~# apt-cache policy isc-dhcp-server
  isc-dhcp-server:
    Installed: 4.2.4-7ubuntu8~ctools0
    Candidate: 4.2.4-7ubuntu8~ctools0
    Version table:
   *** 4.2.4-7ubuntu8~ctools0 0
          500 http://10.0.0.1/ubuntu-cloud/ubuntu/ precise-updates/cloud-tools/main amd64 Packages
          100 /var/lib/dpkg/status
       4.1.ESV-R4-0ubuntu5.9 0
          500 http://10.0.0.1/ubuntu/ precise-updates/main amd64 Packages
       4.1.ESV-R4-0ubuntu5.5 0
          500 http://10.0.0.1/ubuntu/ precise-security/main amd64 Packages
       4.1.ESV-R4-0ubuntu5 0
          500 http://10.0.0.1/ubuntu/ precise/main amd64 Packages
  root at maas1000:~#

  
  [Impact]
  No having the option enabled by default causes DNS/DHCP to misbehave when managed by MAAS. This option needs to be added when installing from CA/ cloud-pocket tools, however, in order for it to hit the CA needs to be SRu'd.

  [Test Case]
  1. Install maas
  2. check that /etc/maas/templates/dhcp/dhcpd.conf.template has the option enabled.

  [Regression Potential]
  Minimal. This won't affect saucy at all, but it is required for the cloud-archive (which uses the latest from saucy).

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