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

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https://bugs.launchpad.net/bugs/1717147

Title:
  cloud-init 0.7.9 fails for CentOS 7.4 in Cloudstack

Status in cloud-init:
  Fix Released
Status in cloud-init package in CentOS:
  Fix Released

Bug description:
  Environment:
  CentOS 7.4, cloud-init-0.7.9-9.el7.centos.2.x86_64

  Problem (quick):
  CentOS 7.4 builds on Cloudstack 4.8 don't run cloud-init because the newer version of cloud-init doesn't appear to like the way the dhclient lease file is named.

  Problem (long):

  I've just built a CentOS 7.4 instance in one of my CloudStack 4.8
  clusters.  Unfortunately, cloud-init fails with the following in
  snippet in /var/log/cloud-init.log:

  2017-09-13 18:53:00,118 - __init__.py[DEBUG]: Seeing if we can get any data from <class 'cloudinit.sources.DataSourceCloudStack.DataSourceCloudStack'>
  2017-09-13 18:53:00,118 - DataSourceCloudStack.py[DEBUG]: Using /var/lib/dhclient lease directory
  2017-09-13 18:53:00,118 - DataSourceCloudStack.py[DEBUG]: No lease file found, using default gateway

  Where it then tries to use the default route to download userdata.
  The problem is that we're not using the Cloudstack VR as a default
  router, so I expected it to parse /var/lib/dhclient/dhclient--
  eth0.lease for the "dhcp-server-identifier" line.

  Theory as to cause:
  I believe that this change (https://github.com/cloud-init/cloud-init/commit/aee0edd93cb4d78b5e0d1aec71e977aabf31cdd0#diff-5bc9de2bb7889d66205845400c7cf99b) breaks cloud-init beyond the 7.3-distributed cloud-0.7.5 when 7.4 includes 0.7.9-9.

  Fix:

  Changing it from "dhclient." to "dhclient-" in /usr/lib/python2.7
  /site-packages/cloudinit/sources/DataSourceCloudStack.py on the
  running box with an installed RPM did the trick theoretically (after
  removing the pyc and pyo files, of course).

  This *can* be patched around by RedHat/CentOS (and hopefully will),
  but I figure it might be better to take it straight upstream.

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