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[Russell Bryant <1326256@xxxxxxxxxxxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

** Changed in: neutron
    Milestone: None => juno-2

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https://bugs.launchpad.net/bugs/1326256

Title:
  Dnsmasq config files syntax issue when dhcp_domain is empty

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  A previous fix as already been done to manage an empty dhcp_domain:
  https://bugs.launchpad.net/neutron/+bug/1099625 

  Hence in case of an empty dhcp_domain  it remains a bug on Dnsmasq
  config files.

  With an empty dhcp_domain Dnsmasq launch command line will be:

   dnsmasq --no-hosts --no-resolv --strict-order --bind-interfaces
  --interface=tapbdb96782-bb --except-interface=lo --pid-
  file=/var/lib/neutron/dhcp/c80662aa-9550-44e6-97f5-a1628b3fca0e/pid
  --dhcp-
  hostsfile=/var/lib/neutron/dhcp/c80662aa-9550-44e6-97f5-a1628b3fca0e/host
  --addn-
  hosts=/var/lib/neutron/dhcp/c80662aa-9550-44e6-97f5-a1628b3fca0e/addn_hosts
  --dhcp-
  optsfile=/var/lib/neutron/dhcp/c80662aa-9550-44e6-97f5-a1628b3fca0e/opts
  --leasefile-ro --dhcp-range=set:tag0,20.0.0.0,static,86400s --dhcp-
  lease-max=256 --conf-file=

  "addn_hosts" file contains:
  20.0.0.3	host-20-0-0-3. host-20-0-0-3
  20.0.0.4	host-20-0-0-4. host-20-0-0-4

  "host" file contains:
  fa:16:3e:bf:e1:e4,host-20-0-0-3.,20.0.0.3
  fa:16:3e:5f:88:81,host-20-0-0-4.,20.0.0.4

  => for both "addn_hosts" and "host" files the hostname (2nd parameter) is ended with an extra dot char.
  (it should be "host-20-0-0-3" instead of "host-20-0-0-3." )

  So generated files should be:

  "addn_hosts" file:
  20.0.0.3	host-20-0-0-3 host-20-0-0-3
  20.0.0.4	host-20-0-0-4 host-20-0-0-4

  "host" file:
  fa:16:3e:bf:e1:e4,host-20-0-0-3,20.0.0.3
  fa:16:3e:5f:88:81,host-20-0-0-4,20.0.0.4

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